in what direction do winds blow?
a. from the northeast to the southwest
b.from the southwest to the northeast
c. from the low pressure areas to high pressure areas
d.from high pressure areas to low pressure areas ​

Answers

Answer 1

Answer:i don’t know

Explanation:i don’t know

Answer 2

Answer:

a. from the northeast to the southwest


Related Questions

Refer to this diagram. Which structure will become the product of translation? 1 2 3 4

Answers

Where is the diagram ?

Drag each of the following labels into the appropriate box to identify which motor division of the peripheral nervous system is identified by the given function.an be excitatory or inhibitory on the target organ Principally involved with movement of materials through the body Skeletal muscle activation Intestinal smooth muscle activation Voluntary Sweat gland activation Lacrimal gland activation Principally involved with movement "of" the body principally invvedPiloerector muscle Involuntary activation Somatic Autonomic

Answers

Answer:

Somatic: Skeletal muscle activation VoluntaryPrincipally involved with movement "of" the body.Autonomic: Can be excitatory or inhibitory on the target organ. Principally involved with the movement of materials through the body. Intestinal smooth muscle activation. Sweat gland activation Lacrimal gland activation Piloerector muscle Involuntary activation.

Explanation:

We can divide the nervous system into the central nervous system, which consists of the brain and spinal cord, and the peripheral nervous system, which consists of all the nerves that are throughout the body carrying information from and to the central nervous system.

We divide the peripheral nervous system into the somatic nervous system and the autonomic nervous system.

The somatic nervous system is the conscious one, that is to say, that we know and control what it does. It is voluntary. It has motor and sensory neurons that carry information to and from the central nervous system. The somatic nervous system is the one that makes us move our muscles to do an action.

The autonomic nervous system is involuntary. In other words, we can not control it consciously. It is the one that controls glands, organs, and smooth muscle, like the one that surrounds the digestive tract to move the food. As we can not consciously control it, this system can work exiting or inhibiting an organ depending on the situation.

The  peripheral nervous system is simply divided into 2 types, which are the somatic nervous system and the autonomic nervous system.

SOMATIC

Voluntary principally involved with movement "of" body skeletal muscles activation

AUTONOMIC

Involuntary lacrimal gland activation intestinal smooth muscle activation principally involved with movement "through" body sweat gland activation arrector pili activation can be excitatory or inhibitory on target organ

The peripheral nervous system (PNS) is the simply known as the division of the nervous system that has all the nerves that is found outside of the central nervous system (CNS).

Its primary role is to connect the central nervous system to various organs such as the limbs, and skin.  simply divided into 2 types, which are the somatic nervous system and the autonomic nervous system.

Learn more from

https://brainly.com/question/10802414


3. In biological terms are you a
producer or a consumer? Explain
your answer.

Answers

Answer:

consumer

Explanation:

because we get things from living things

During the process of DNA replication, the whole molecule gets copied in the [A] phase of the cell cycle. The DNA strands are separated by the enzyme [B] while [C] keeps it from overwinding. The 2 strands are copied differently. The [D] strand is made continuously, while the [E] strand is synthesized in small sequences called Okazaki fragments. The main enzyme involved in DNA replication is [F]. This enzyme can only add nucleotides to an existing strand, so short sequences of [G] made by the enzyme [H] are needed for the process of elongation. In the [U] strand, the enzyme DNA polymerase one removes the short tj sequences and fills the gaps, while [K] joins the fragments.

Answers

Answer:

Synthesis, DNA helicase, topoisomerase, leading strand, lagging strand, DNA polymerase, nucleotides, primase, lagging strand, nucleotide, DNA ligase

Explanation:

During the process of DNA replication, the whole molecule gets copied in the synthesis or S phase of the cell cycle. The DNA strands are separated by the enzyme helicase while topoisomerase keeps it from overwinding. The 2 strands are copied differently. The leading strand is made continuously, while the lagging strand is synthesized in small sequences called Okazaki fragments. The main enzyme involved in DNA replication is DNA polymerase. This enzyme can only add nucleotides to an existing strand, so short sequences of nucleotides (primer) made by the enzyme primase are needed for the process of elongation. In the lagging strand, the enzyme DNA polymerase one removes the short tj sequences and fills the gaps, while DNA ligase joins the fragments.

A Synthesis,

B DNA helicase,

C topoisomerase,

D leading  

E lagging strand

F DNA polymerase

G nucleotides

H primase

I lagging strand

J nucleotide

K DNA ligase

what must be true about two objects if heat is flowing between them​

Answers

Answer:

The objects must be the same temperature.

Explanation:

if heat is flowing between two objects, so both ​the objects must have the same temperature because the heat in object 1 passes to the object 2 due to the conduction property present in these objects. The heat flows from one body to another body until both have the same amount of heat energy as well as temperature so that's why we can say that both objects must be the same temperature.

describe the cell membrane, cell wall, nucleus, and cytoplasm. which of these structures are you likely to find in a prokaryotic cell? eukaryotic cell? plant cell? animal cell?

12 points! please answer asap!

Answers

Answer:

you can see below

Explanation:

Basic Definitions:

Cell Membrane = the semi-permeable structure that surrounds the cell and keeps all of the cells organelles from exploding everywhere.

Cell Wall = the rigid 'armor' of the cell that surrounds it after the membrane. Usually made up of cellulose and ONLY found in plant cells.

Nucleus = A really dense organelle of the cell usually surrounded by two membranes. They contain and protect your genetic material. Basically everything that makes you, you.

Cytoplasm = The watery, salty, and protein filled 'soup' that fills the cell. All organelles float happily in this.

Now Specific Locations:

Eukaryotic cells

have plasma membranes

please mark me brainliest or mark me thanks at leat

only have cell walls if the cells are plants.

They do have a nucleus.

They have cytoplasm

Prokaryotic cells

have plasma membranes

cell walls are usually chemically complexed.

don't have a nucleus

have cytoplasm

Animal cells

only have the plasma membranes.

No cell wall

have a nucleus

have cytoplasm

Plant cells

have both the cell wall

and have a plasma membrane

have a nucleus

have cytoplasm

why your 21st century sophisticated, how do you explain the role of the plant in the change of the air in the jar​

Answers

Answer: The gas of Fire constrains the atoms that make up oxygen in the air. Plants release oxygen, and take in carbon dioxide.

Enter the sequence of the DNA coding strand with a 5-3 polarity. DO NOT WRITE 5 OR 3 OR 5' OR 3' IN THE BOX!

Answers

Complete question:

Use the sequence below to answer the following questions  

3’-ACGGATCCTCCCTAGTGCGTAATACG-5’  

5’-TGCCTAGGAGGGATCACGCATTATGC-3’  

1. Enter the sequence of the coding strand with a 5’-3’ polarity

Answer:

coding strand → 5´- GCATAATGCGTGATCCCTAGGCA -3´

Explanation:

When referring to the coding strand, we are talking about the sequence that turns to be the same as the mRNA that results from the transcription of the same DNI segment -switching bases T for U-.  

The coding strand receives that name because it is the sequence that codes for each amino acid composing the proteins.

When the DNI molecule separates into two strands to form the transcription bubble, we can identify two separate segments: coding strand and template strand.  

The coding strand goes in direction 5´ to 3´, while the complementary strand -template strand- grows in direction 3´ to 5´.  

Whenever we have a DNI molecule and we need to determine which strand is the coding one, we just need to look for the presence/absence of start or stop codons.

So, in the exposed example we have two strands, but we do not know yet which one is the coding one.

Conventionally, the first strand is always the coding one. However, let us analyze it by using the presence/absence of codons.

First-strand:

3’-ACGGATCCTCCCTAGTGCGTAATACG-5’

let us write it is 5´to 3´direction

5´- GCATAATGCGTGATCCCTAGGCA -3´

now let us identify the start and stop codons in 5´⇒3´direction.

Start codon ⇒ ATGStop codon ⇒ TAA, TAG, TGA

5´- GCATAATGCGTGATCCCTAGGCA -3´ ⇒ 1 start codon at the beginning

5´- GCATAATGCGTGATCCCTAGGCA -3´ ⇒ 3 Stop codons

Second strand: We will do exactly the same procedure

5’-TGCCTAGGAGGGATCACGCATTATGC-3’⇒ 1 start codon near the end

5’-TGCCTAGGAGGGATCACGCATTATGC-3’⇒ 1 stop codon at the beginning

What we did here was to identify in both provided strands, where the start and stop codons are placed. We can see that in the first strand we have the start codon near the beginning, while in the second strand we have it near the end of the sequence. From this information, we can assume that the first strand is the coding one. However, you need to know that some coding sequences do not have start and stop sequences, because they might correspond to a sequence in the middle of a gene.

So, the sequence of the DNA coding strand with a 5-3 polarity is

5´- GCATAATGCGTGATCCCTAGGCA -3´

In pea plants, flowers are either white or purple: the purple color is produced by pigments called anthocyanins. The production of anthocyanins is a two-step process: the first step is controlled by the C gene and the second by the P gene. Both genes must produce functional proteins for anthocyanin to be produced. This is an example of:

Answers

Answer:

This is an example of gene translation.

Explanation:

Gene translation refers to the genetic process where a set of genes is used to create amino acids that will be responsible for creating a protein needed to perform some function or characteristic of the organism. In the question above, we can see that anthocyanin, responsible for the pigment of flowers, is created through the work of proteins that are created from gebes C and P. This is an example of gene translation, as it presents the formation of proteins regulated by genes.

What is the correct sequence of events for the life cycle of the pork tapeworm, T. solium? Arrange the following statements in chronological order

Answers

Answer: See explanation

Explanation:

The correct sequence of events for the life cycle of the pork tapeworm, T. solium in chronological order will be:

• Eggs are produced by adult tapeworms living in definitive host

• Eggs are released in the environment in the faeces

• Pigs eat grass contaminated, or fertilized with human faeces.

• Inside the intermediate hosst, the eggs mature into larvae and encyst in the host muscles.

• The definitive host ingests the larvae and becomes infected.

All claims in science should be supported by

Answers

Evidence

Hope this helps. Have a great day! :)

explain the importance of studying cytology ​

Answers

the importance of studying cytology are

Explanation:

Cytology is important in modern-day medicine as well. Cytological tests are used to observe human cells to determine the risk of abnormalities and cancer. The Pap smear test looks at cells as opposed to pieces of tissue and is used to screen women for cervical cancer.i hope it will help you

The coding RNA in a cell at particular time is comprised of
A. total mature mRNA
B.whole RNA
C. hnRNA
D.4% of total coding RNA

Answers

B whole RNA that is the correct answer

Whic type of graph would you use if you wanted to see if one variable had an affect on another variable?

Answers

A scatter plot or scattergram chart will show the relationship between two different variables or it can reveal the distribution trends. It should be used when there are many different data points, and you want to highlight similarities in the data set.

Answer:

line

Explanation:

A line graph is used to see if there is a relationship between variables.

How can we get more food for ourselves without damaging other animals' food chains? ​

Answers

Answer:

it's simple We have to crop the vegetables .

Ariella is a 12-year-old whose BMI-for-age is above the 95th percentile. What conclusion could be drawn? a. She is at risk for undernutrition b. Her body fat percentage is in an unhealthy range. c. She is going through a growth spurt. d. She is at risk for future obesity.

Answers

Answer:

She is at risk for future obesity

Explanation:

The correct conclusion could be drawn is she is at risk for future obesity. BMI is a body mass index that is derived from the mass and height of the person.

How BMI is calculated?

The formula is BMI = kg/m2

Where kg is a person’s weight in kilograms and m² their height in meters squared.

BMI categoriesUnderweight = <18.5Normal weight = 18.5–24.9Overweight = 25–29.9Obesity = BMI of 30 or greater

Thus, it is concluded that Ariella is at a risk for future obesity according to her BMI percentile.

Learn more about BMI here:

https://brainly.com/question/2064513

#SPJ2

Dark skin ( a result of increased melanin production in equatorial populations), is likely a response to ultraviolet radiation because UV radiation causes:

Answers

Answer: Skin cancer

Explanation:

Melanin is a pigment derived from an amino called acid tyrosine. The most common form of melanin is called eumelanin, which is a polymer of dihydroxyindole carboxylic acids and their reduced forms. When a person is exposed to the ultraviolet light (UV) from the sun, the melanocytes will produce eumelanin to prevent the skin from burning and damage to the cell nuclei (where DNA is found) of the epidermis. This melanin production causes the skin to darken. The eumelanin in the skin then acts as a natural sunscreen by blocking the damaging effects of sunlight. So, skin darkens when exposed UV light, thus providing greater protection when needed by producing more eumelanin, but it also becomes more likely to develop melanoma, which is a type of skin cancer. This is because UV rays damage the DNA of skin cells. The DNA (deoxyribonucleic acid) is the genetic material that has the instructios to the growth and functioning of an organisms). Skin cancers begin when eumelanin protection is not sufficient and this damage affects the DNA of the genes that control the growth of skin cells. This results in a tumor, which is the uncontrolled growth of cells (in this case, skin cells) because there will be a mutation in DNA that affects the function of the cells.

Unlike other plants, trees are plants living for several years thus they are

A. Annual

B.shade

C.perennial

D. Fence

Answers

c. perennial

hope this helps!

Select the correct answer
Which term refers to the maximum number of organisms of a particular species that can be supported by an environment?
OA Population density
OB Exponential growth
OG carrying capacity

Answers

Answer:

Carrying capacity

Explanation:

Carrying capacity means the number of organisms that a region can support without environmental degradation.

Scientists think that red pandas and raccoons share a more recent common
ancestor than red pandas and giant pandas do. If this is true, what would you
expect to be true about the genetic sequences in these organisms?
O A. Red pandas and raccoons must have identical DNA sequences.
B. The DNA sequences of giant pandas are likely to be more similar
to the sequences of raccoons than of red pandas.
C. Red pandas must have a different genetic code than giant pandas.
O D. The DNA sequences of red pandas are likely to be more similar to
the sequences of raccoons than of giant pandas.

Answers

Answer:

D seems to be best answer if that was my test

Explanation:

makes the most sense

Answer:

D

Explanation:

Do you think that Neanderthals deserve the sometimes negative public image they have?

Answers

Answer:

No.

Explanation:

Neanderthals are portrayed as idiotic animals while in reality they are the beginning of our civilizations. While yes we are far more advanced then they were back then they are still our beginning roots and were smart enough to take the first steps towards advancement causing us to be where we are now :)

is it possible that after the first meeting of male and female through sexual inter course
the female become pregnant after the sex??​

Answers

Answer:

Yes, it is possible because, if the sperm from the male goes into the egg of the female it can cause the female to get pregnant by that male. And its very rare for the female not to get pregnant after having inter course with the male. That's only if they had unprotected sex.

I hope this helps you!

XoXo Mashayla

Explanation:

How does water relate to the ability of a living thing to generate usuable energy?

Answers

Answer:

Without the proper balance of water, chemical reactions in cells could not take place.

Explanation: :)

Classify the receptor descriptions or names below based on which neurotransmitter each is associated with. alpha-Adrenergic beta-Adrenergic Muscarinic Nicotinic Only receptor found in parasympathetic synapses Associated with mushroom poison Ultilizes calcium ions as a second messenger Associated with tobacco Norepinephrine Acetylcholine Reset

Answers

Answer:

1. Acetylcholine:  

- Muscarinic  

- Nicotinic  

- Associated with mushroom poison  

- Only receptor found in parasympathetic synapses  

- Associated with tobacco  

2. Norepinephrine:  

- alpha-Adrenergic  

- beta-Adrenergic

- Utilizes calcium ions as a second messenger

Explanation:

Acetylcholine (ACh) is a neurotransmitter that acts in both the central and peripheral nervous systems. Cholinergic receptors are receptors that bind to ACh. Muscarinic receptors are G protein-coupled receptors involved in the parasympathetic nervous system, which play roles in a variety of physiological responses (e.g., ACh binds to muscarinic receptors in the pathophysiology of asthma, leading to an increased mucus secretion). Nicotinic receptors bind to nicotine, while muscarinic receptors bind to muscarin (muscarine is a well-known neurotoxic alkaloid found in certain mushrooms). Nicotine receptors are also called cholinergic receptors since they also respond to ACh.  On the other hand, norepinephrine (NE) binds to alpha-adrenergic and beta-adrenergic receptors in different tissues. Both alpha-adrenergic and beta-adrenergic receptors are G-protein coupled receptors. Alpha-adrenergic receptors are involved in the regulation of blood pressure and generating a sympathetic 'fight and flight response'; whereas beta-adrenergic receptors modulate sympathetic responses in the cardiovascular, metabolic, and central nervous systems (NE activates the beta1-receptor). NE can induce Ca2+ release, which is a second messenger that controls a wide variety of cellular processes.

A 45-year-old woman named Christine is measured as having the following skinfold thicknesses on the right side of her body: Triceps: 14mm; Thigh: 32mm; Suprailium: 28mm. Estimate her body fat percentage.

Answers

Answer:

The skinfold method, the measurement of subcutaneous fat folds, is the most widely adopted field method for the assessment of body fat, especially in children.

It is based on the principle that fat is of a known density and by “summing” measurements of subcutaneous fat thickness across the body, total and regional fat can be estimated.

Skinfold thickness measurements are typically used to rank individuals in terms of relative total “fatness”, or to assess subcutaneous fat at various regions of the body.

Population specific equations are used to derive estimates of percent body fat.

In infancy, it might be the sole tool available for assessing body composition longitudinally as other methods may not be feasible, or may only be suitable for use at body sizes e.g. PEA POD, can only measure infants up to 10kg.

The most generally used field method for determining body fat, particularly in kids, is the skinfold method, which involves measuring subcutaneous fat folds.

What is skinfold method?

Skinfold method is defined as a method for determining how much body fat there is. It entails delicately pinching the skin and underlying fat in several locations using a tool called a caliper. To acquire precise findings using this quick and easy body fat estimation technique, a high level of competence is needed.

It is based on the idea that since subcutaneous fat thickness measurements may be "summed" to estimate total and regional fat because subcutaneous fat has a known density. Measures of skinfold thickness are widely used to categorize individuals based on their relative degrees of overall "fatness" or to assess subcutaneous fat in various bodily regions. Estimates of the percent body fat are derived using equations that are specific to a population.

Thus, the most generally used field method for determining body fat, particularly in kids, is the skinfold method, which involves measuring subcutaneous fat folds.

To learn more about skinfold method, refer to the link below:
https://brainly.com/question/12277553

#SPJ2

Describe the unique anatomical features of cardiac muscle. What role does the unique structure of cardiac muscle play in its function

Answers

Answer:

The cardiac muscle is made up of branched muscle cells, which have 1 or 2 nuclei and which the contact area between the heart fibers gives rise to specialized regions at the level of the plasma membrane called intercalary discs. The intercalary discs unite the cardiac muscle cells with each other, which provides greater adhesion to the tissue and intervenes in the rapid communication between cells. This allows its simultaneous contraction and the production of the beat.

Explanation:

The intercalary discs are the union systems that associate the cardiac muscle cells to form the myocardial fibers, the cardiac muscle is the muscle tissue of mixed components, which is located exclusively in the walls of the heart. For this reason, it has the function of generating the necessary contractions for the blood to reach all parts of the body.The intercalary discs are a special type of intercellular junction, a gap that guarantees electrical communication between these cells; and on the other hand, it provides places of adhesion and anchorage of one cell with another. The intercalary discs provide the structural foundation that allows the heart to behave as a functional syncytium.

The following statement is incorrect as stated "Pesticides create pesticide resistance in mosquitoes." Rewrite this sentence so that it is a more accurate statement of what actually occurs when pesticides are used. Why is this concept important to know in trying to control outbreaks of mosquito transmitted diseases such as eastern equine encephalitis (also known as Triple E)?

Answers

Answer:

Mosquitoes usually become resistant to pyrethroids through the mutation of a sodium channel gene that controls the movement of ions across cell membranes. Mutations in a single gene are enough to make mosquitoes almost completely resistant to the level of pyrethroids used in insecticides.

Natural selection is most likely to be the cause of a change in a population's
allele frequencies when:
A. the ecosystem experiences few disturbances,
B. the population drops below its carrying capacity.
C. the predators are removed from the ecosystem,
D. the population has reached its carrying capacity.
PLEASE HELP URGENT

Answers

Answer:handheld c

Explanation:bend c smlOc

C is probably the right answer to me

What would be the most likely candidate for a complete transmembrane segment of a protein in the lysosomal membrane?

Answers

Answer:

Alpha-helical and beta-barrels.

Explanation:

Alpha-helical and beta-barrels are the types of transmembrane protein and both are most likely candidate for a complete transmembrane segment of a protein in the lysosomal membrane. A transmembrane protein (TP) is a type of membrane protein that spread in the whole cell membrane. Transmembrane proteins act as gateways that permit the transport of specific substances across the membrane of the cell.

Which quantity does a light year measure

Answers

Answer:

distance = 9.46 trillion kilometers

Explanation:

Light years measure distance and is a unit that equals the distance light travels through space in one year on Earth (365 days) and is used as way to measure extremely vast distances in outer space. It equals 9.46 trillion kilometers.

Other Questions
Which detail supports the main idea, Conjoined twins used to be viewed with fear and suspicion by the people around them? Solve the system of linear equations below.6x + 3y = 334x + y = 15A.x = 2, y = 7B.x = -13, y = 7C.x = - 2/3, y = 12 2/3D.x = 5, y = 1 help me guys, I really need your help PLEASE HELP WILL GIVE BRAINLIESTSarah uses 23 of her supply of cheese to make pizza and 19 of her supply of cheese to make lasagna. If Sarah uses 213 pounds of cheese, how many pounds of cheese were in her supply?A.)3 poundsB.)6 poundsC.)8 poundsD.)9 pounds what type of feature might be observed at this location? Read the excerpt from The Dark Game: True Spy Stories from Invisible Ink to CIA Moles.[T]he Germans committed some blunders in the way they sent their secret radio messages, giving the British help in their task. The first mistake of German intelligence was the error of arrogance, believing that the British were not up to the challenge of deciphering their messages. Another mistake they made was sending duplicates and even triplicates of some of their messages, with each one using a different cipher key.Which word best describes the tone of the passage?criticalapologeticobjectivediscouragedMark this and return A body weighs 63 N on the surface of the earth. What is the gravitational force on it due to the earth at a height of 3200 km from the earth's surface? (Radius of the earth is 6400 km) What is the inverse of the function f(x) = x +3?O h(x) = 5x + 3O h(x) =1x-3Oh(x) = x-3Oh(x) = x + 3 How did the Great Railroad Strike of 1877 affect the national economy? The strike had a minor impact on the national eco... A. AB. CC. DD. BHELLLP GUYS!!! Diana adds either 2 or 5 to every whole number from 1 to 9. She wants to achieve as few different sums aspossible. What is the minimum number of different values she obtains?(A) 5(B) 6(C) 7(D) 8(E) 9 Harris Fabrics computes its plantwide predetermined overhead rate annually on the basis of direct labor-hours. At the beginning of the year, it estimated that 32,000 direct labor-hours would be required for the periods estimated level of production. The company also estimated $557,000 of fixed manufacturing overhead cost for the coming period and variable manufacturing overhead of $2.00 per direct labor-hour. Harriss actual manufacturing overhead cost for the year was $679,453 and its actual total direct labor was 32,500 hours. Required: Compute the companys plantwide predetermined overhead rate for the year. A toy is in the form of a cone mounted on a hemisphere of common base radius 7cm. The total height of the toy is 31cm. What's the total surface area of the toy? 1 465 2 769 3 835 4 912 Question Mode Fill in the Blank Question Fill in the blank question. The ABC Company had its highest level of production in May when they produced 4,000 units at a total cost of $110,000 and its lowest level of production in November when they produced 2,500 units at a total cost of $87,500. Using the high-low method, the estimated fixed costs are $ . which component of effective high-performance teams is represented by the use of real-time feedback devices acls Joe is currently selling 873 hamburgers per month at $5 per hamburger for total monthly sales of $4,365. The restaurant manager feels that a $1,000 monthly advertising budget would increase monthly sales by $3,000 to a total of 1,473 hamburgers. Should Joe add advertising NEED ASAPWhich behaviors show healthy boundaries in a romantic relationship?Select all that apply.O expecting others to take responsibility for their own actionsmaking time for other friends and independent interestsO expecting respect from a romantic partnertrying to change a romantic partner to fit your desires StatuseviewA circular loop of radius 0.0400 m isoriented 35.0 degrees to a 0.152 Tmagnetic field. What is the magneticflux through the loop?Help ResourcesSkipHint: How do you find the area of a circle?[?] x 10"") WbPls I need helpppp! Find the difference of the polynomials given below and classify it in terms of degree and number of terms. Which story event in "Perseus" best shows that the ancient Greeks valued intelligence?King Acrisius casts Dana and Perseus inside a metal chest into the sea.Perseus boasts that he will bring back Medusas head as a wedding gift.Hermes gives Perseus his special sword with which to kill Medusa.Athena gives Perseus a mirror so he does not look directly at Medusa.