Answer:
Oxygen
Explanation:
Kreb's cycle, also known as the Tricarboxylic acid cycle (TCA), is the second process of aerobic cellular respiration, after glycolysis. In the kreb's cycle, acetyl-CoA from pyruvic acid is oxidized to CO2 with the formation of 2 ATP molecules.
Krebs cycle occurs in the matrix of the mitochondria where chemical energy in form of ATP, NADH and FADH2 are produced. Krebs cycle is termed an AEROBIC process because it requires OXYGEN in order to occur.
why blood is classified as tissue in cellular organization?
Answer:
Blood is considered as a connective tissue .
Connective tissues have cells scattered throughout an extracellular matrix. They connect different body systems. Blood is considered as a type of connective tissue because of two reasons.
(i) Like the other connective tissues, blood is mesodermal in origin.
(ii) It connects the body systems, transports oxygen and nutrients to all the parts of the body, and removes the waste products. Blood has an extra-cellular matrix called plasma, with red blood cells, white blood cells, and platelets floating in it.
Answer:
Connective tissues have cells scattered throughout an extracellular matrix. They connect different body systems. Blood is considered as a type of connective tissue because It connects the body systems, transports oxygen and nutrients to all the parts of the body, and removes the waste products
hope this helps you
Which factor in the Southwestern desert ecosystem is abiotic?
You are a botanist working on a species of Lily. You are attempting to measure a certain inherited trait. In order to rule out Environmental Variation, you should keep all of the following factors constant except:_______
A. Temperature
B. Amount of sunlight
C. Amount of water
D. Type of bee carrying the pollen
Answer:
D. Type of bee carrying the pollen
Explanation:
Remember, Lilies are aquatic plants, so in order to rule out Environmental Variation, that is, differences in environment, we are to make constant all the environmental factors which include the options;
Temperature Amount of sunlight Amount of waterHowever, the none environmental factor which is the type of bee carrying the pollen is exempted.
what is the most important responsibility of individual in creating a safe environment especially on public health.
Answer:deacreaing pollution on the behalf of own is the best soon of it...
Explanation:
Create a sentence explaining how animo acids from proteins
Amino acids are joined together by peptide bonds, in which the amino or NH2 of one amino acid bonds to the carboxyl (acid) or COOH group of another amino acid to form Proteins.
Amino acids are monomers that combine to form polymers called proteins.
A population of finches experiences a drought where all of the normal food types disappear leaving only ant hills that certain finches with thin beaks can access. Over time, almost all of the population has a similar long sharp beak. This is an example of:
Answer:
This question lacks options; the options are:
A) Artificial selection
B) Stabilizing selection
C) Disruptive selection
D) Directional selection
The answer is D) Directional selection
Explanation:
Changes in the environmenal condition affects the distribution of organisms phenotypes. Via this change, organisms with certain traits are naturally selected. The types of natural selection are; stabilizing, disruptive and directional.
Based on the description of the selection in this question, the type of selection is DIRECTIONAL. Directional mutation is that in which one of the two extreme phenotypes in a population is selected against while the other is favored by the occurrence of a natural environmental hazard. The distribution gradually shifts to favour one extreme over the other until the other unselected extreme gets extincted.
This is the case regarding a population of finches affected by drought caused by flood causing all their food source to disappear leaving only ant hills that certain finches with thin beaks can access. This environmental change favorably selects one extreme phenotype (finches with long thin beaks). Hence, a type of DIRECTIONAL selection
Each orientation of chromosomes produces gametes with the same genetic information from each parent.
a) true
b) false
Answer: a) true
Explanation:
The goal of mitosis is to produce daughter cells that are genetically identical to the mother cell, without a single extra or missing chromosome. Meiosis, on the other hand, is only used for one purpose in the human body: the production of gametes or sex cells, i.e. sperm and eggs. The question is oriented to mitosis, in which prior to this cell division, the cell duplicates its DNA so that each daughter cell then inherits the genetic material. That is, the cell originally possesses 23 chromosomes, they duplicate to a total of 46 so that then each daughter cell receives 23.
The metaphase is the second phase of mitosis and meiosis that occurs after prophase where the envelope is lost and microtubules of the achromatic spindle (also called meiotic or mitotic) appear.
During metaphase, the chromosomes align themselves in the middle of the cell and this balanced midline spindle alignment is due to the equal and opposing forces generated by the kinetochore brothers.
Then during metaphase, the chromosomes will line up in the center of the cell to be separated and go each to a different daughter cell. But the moment they're found there, each orientation of chromosomes produces gametes with the same genetic information from each parent. Because because there have been no changes or mutations in the chromosomes, they have duplicated and have the same genetic information.
If you have a strand of DNA that reads 3'TACGCGATAGGCAAATT5'. 1. Give the corresponding strand of mRNA 2. Assuming the last condon is a stop codon, will this mRNA strand code correctly for a five amino acid protein
Answer:
1. 5'AUGCGCUAUCCGUUUAA3'
2. No
Explanation:
1. Considering the base-pairing rule, the substitution of the thymine base in DNA with Uracil base in the corresponding mRNA, and the directionality in DNA/RNA; the corresponding mRNA sequence from the DNA strand 3'TACGCGATAGGCAAATT5' would be: 5'AUGCGCUAUCCGUUUAA3'
2. A codon is made up of 3 nucleotide bases. There are 17 nucleotide bases in the mRNA and if the last codon is a stop codon, it means 14 nucleotide bases would be translated. When 14 is divided by 3, there would be 4 complete codons and 2 nucleotide bases would remain. Hence, the mRNA cannot code correctly for a five amino acid protein.
Answer:
5'AUGCGCUAUCCGUUUAA3'
No, the mRNA strand code will not have a five amino acid protein.
1 Explanation:
Use this formula and it can not be the other way around unless stated:
T translates to A
A translates to U
G translates to C
C translates to G
Because the congruent strand is reciprocal to the mRNA strand, the original 3' - 5' would need to be flipped to 5' - 3'
Thus the answer for 1. is 5'AUGCGCUAUCCGUUUAA3'
2. Explanation:
Let's break the sequence into codons.
AUG - CGC - UAU - CCG - UUU - AA
AUG states for the start point so it doesn't count as a five amino acid protein, thus eliminating it.
CGC - UAU - CCG - UUU - AA
As stated in the question, the last codon is the stop codon, thus eliminating that as well.
CGC - UAU - CCG - UUU
Now the remaining codon would be only 4, not five thus it wouldn't have five amino acid proteins.
Hope this helps!
Which particles do plants absorb to obtain energy
Answer:The molecules of chlorophyll contained in the chloroplasts absorb energy in the form of light from the sun. Some plants need more sunlight than others, but all need at least a little. Instead of taking in oxygen and breathing out carbon dioxide like animals do, plants take in carbon dioxide from the atmosphere......thank you.have a great day
use what you've learned to match the earths inner layers to their correct descriptions
Answer:
Outer core- is made of liquified metal
Asthenosphere- has a tarry consistency
Inner core- is under great pressure and solid
Lower mantle- is under the asthenosphere
Explanation:
1). Outer core - is made of liquified metal, 2)The asthenosphere - has a tarry consistency, 3). Inner core - is under great pressure and solid, 4). Lower mantle - is under the asthenosphere.
What are the layers of the earth?The four main layers of the Earth are the solid outer crust, the mantle, and the core, which is divided into an outer core and an inner core.
Everything in the crust that we can immediately observe and analyze. The average thickness of the Earth's crust is 40 kilometers, ranging from 3 to 44 miles to 5 to 70 kilometers.
On a global scale, however, that is smaller than the skin of an apple. The mantle is the planet's thickest layer, reaching a depth of 2,890 km. It makes up approximately 84% of the total volume of the Earth.
The earth's structure is divided into four major components: the crust, mantle, outer core, and inner core. Each layer has its own chemical composition and physical state, and it can have an impact on life on Earth's surface.
To learn more about layers of the earth, refer to:
brainly.com/question/7786540
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Why does Edwards use the word provoked instead of the word angered in this passage? The word provoked suggests that God’s anger is fierce and irrational. The word provoked suggests that sinners bear responsibility for God’s anger. The word provoked suggests that God’s anger is sharp and deadly. The word provoked suggests that sinners do not want to change their ways.
Answer:
The word provoked suggests that sinners bear responsibility for God’s anger.
Explanation:
From the passage Sinners in the hands of an angry God, Edwards uses the word 'provoked' instead of 'angered' to suggest that God's anger towards the people was as a result of the actions of the people and that they would bear responsibility for it.
The word 'provoked' means to stir up, or provoke someone
The word 'angered' means to be filled with great anger.
Answer:
The word provoked suggests that sinners bear responsibility for God’s anger.
Explanation:
_______ are the small sacs that are the site of gas exchange in the lungs. In addition to being an airway, the _______ is the location of the human vocal cords. Cilia in cells along the trachea and nasal passages secrete _______ which traps dirt and particles from the air. Air is only approximately 21% oxygen. The majority of air is ______. The medulla oblongata controls the contraction and relaxation of the _______, causing the lungs to inflate and deflate during breathing. Explain the process of breathing. Begin with inhalation and describe the route that the air takes to the lungs, and what happens when the air reaches the lungs. Include in your description the terms: mouth, nose, pharynx, larynx, trachea, bronchi, lungs, alveoli, carbon dioxide, oxygen, and capillaries
1. D
2. C
3. B
4. A
5. Alveoli
6. larynx
7. mucus
8. nitrogen
9. diaphragm
10. Air enters the body through the mouth or nose and passes through the pharynx and larynx. Then it travels down the trachea and branches through the bronchi into the two lungs. In the lungs, small alveoli are the site of gas exchange where carbon dioxide diffuses into the lungs for exhalation, while oxygen from the air diffuses into the capillaries surrounding the alveoli to be pumped throughout the body.
PENNFOSTER.
add me as brainliest hehe <3
Answer:
1. d
2. c
3. b
4. a
5. Alveoli
6. larynx
7. mucus
8. nitrogen
9. diaphragm
10. Air enters the body through the mouth or nose and passes through the pharynx and larynx. Then it travels down the trachea and branches through the bronchi into the two lungs. In the lungs, small alveoli are the site of gas exchange where carbon dioxide diffuses into the lungs for exhalation, while oxygen from the air diffuses into the capillaries surrounding the alveoli to be pumped throughout the body.
Explanation:
Can star positions be used to determine the future
Answer:
Since stars basically move freely through space, we can use their proper motions to predict where they will be in the future. A star can also move toward us or away from us, following what is known as radial motion. The combination of radial motion and proper motion determines a star's true motion relative to us.
Hoped I helped
What does absorption mean? A. breakdown of molecules B. enzyme activity on nutrients C. network of chemical reactions that occur in the body D. process of assimilating
Answer:
It is B
Explanation:
Because absorption occurs when the simple nutrient molecules that result from digestion are absorbed into blood or lymph.
Answer:
process of assimilating
Explanation:
I think it is right! I don't know.
The diagram shows a type of lipid.
Which type of lipid is shown?
A.) a saturated phospholipid
B.) a saturated triglyceride
C.) an unsaturated phospholipid
D.)an unsaturated triglyceride
Answer:B
Explanation:
Which of the following is a testable hypothesis?
Answer:
The correct answer would be Garden plants grow better in wet soil than in dry soil.
Scientific hypothesis refers to a proposed or tentative explanation for the occurrence of a particular phenomenon.
Testable hypothesis are those which can be approved or denied on the basis of results of any testing, experience, or data collection.
From the given choices, only fourth hypothesis can be scientifically or experimentally tested.
Same types of plants can be grow in dry and wet soils keeping all other variables constant (such as temperature, light, nutrients et cetera) in order to check the effects of the soil on the plant growth.
Explanation:
hope this helps you.
what is transpiration
Answer:
Exhalation of water vapor through the stomata.
Answer:
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flower
If you have a density of 100 kg/L, and a mass of 1000 units, tell me the following:
First what are the mass units?
Answer:
100KL
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Answer:
density = mass/volume = 100 kg/L
the mass = 1000 kg
volume = mass/density = 1000/100 = 10 L
hope this helps you
is the basic unit of life.
organ
o cell
Answer:
Cell!
Explanation:
Is aprons preventative or emergency
Answer:
Hey there!
Aprons are preventative. You where an apron while cooking or working in the kitchen, to prevent unclean food or liquids from touching your clothes.
Let me know if this helps :)
WHAT İS THE CELL MEMBRANE
Answer:
the semipermeable membrane surrounding the cytoplasm of a cell.
Please give brainliest
Explanation:
"When the body is relying on internal energy reserves to continue meeting its energy demands, it is in the ________ state."
Answer:
Postabsorptive state
Explanation:
This is the state where food has been digested, absorbed, and stored. While in this state, the body relies on the stored glycogen in the body. This state is also known as the "fasting state."
Which of the following best describe(s) the function of the 5' mRNA cap?
a) Termination of transcription
b) To provide a binding site for poly(A) polymerase
c) It provides a site for ribosome binding in the cytoplasm
d) To protect the transcript from degradation
Answer:
c) It provides a site for ribosome binding in the cytoplasm
d) To protect the transcript from degradation
Explanation:
Transcription is the very first stage of gene expression, which involves the synthesis of a mRNA molecule from a DNA template. The mRNA transcript produced is referred to as a pre-mRNA until it undergoes further processing in the nucleus. This processing makes it matured and ready to be translated (form protein).
The mRNA processing involves three main processes viz: 5' capping, 3' polyadenylation and splicing. The capping of the 5' of the mRNA involves the addition of a 7-methyl guanosine molecule to the 5' of the mRNA molecule. This capping helps protect the mRNA transcript from being degraded by nucleases (digestive enzymes in the nucleus). In addition to this function, the added CAP also provides a recognition site for ribosome to bind to during translation initiation.
Name of the vector and the species of the parasite that cause the disease Malaria in Africa
Answer:
Mosquito bites , Plasmodium parasites
Explanation:
Malaria disease is usually spread by mosquito bites, the mosquito itself is the leading cause of malaria outbreaks.
Malaria is caused by a parasite called Plasmodium.
Five main types of Plasmodium parasites are responsible for malaria.
In Africa, malaria is mainly caused by Plasmodium falciparum and Plasmodium malariae
True or false: The F2 generation is a second generation of offspring produced by the P generation. If false, make it a correct statement.
Answer:
False
Explanation:
The F2 generation is a second generation of offspring produced by the F1 generation
What are the two defining characteristics found in organisms that are grouped in the clade Lophotrochozoa
Answer:
A protostome creatures’ clade categorized within the Spiralia is known as Lophotrochozoa. Based on the molecular proof, the taxon was recognized as a monophyletic group. The two illustrating features of lophotrochozoans found in various members are the presence of a small, translucent top-shaped ciliated larvae or trochophores, and the existence of a horseshoe-shaped ciliated tentacles crown known as iophophores.
(science) ill pick brainiest :) Scientists have discovered convection currents inside Earth. Explain how these convection currents move and what layer(s) they occur in.
Answer:
não sei sua pergunta novamente
Energy receipt is highest between 0° and 23.5° N and S as this is where the sun moves overhead. What would happen if instead the sun moved overhead across a much larger region, such that it was traveling overhead between 0° and 60° N and S? Think about how think might impact certain, major wind patterns.
Answer:
Energy receipt is most noteworthy between the tropics. Had the sun gone up to 60 N and S and back forward, this would have prompted total decimation in significant wind pattern, numerous biomes, for example, Mediterranean biome.
Be that as it may, the most vital effect would have been on the wind patterns since worldwide wind pattern (mainly first order wind) are to a great extent reliant on the weight belt which are constantly influenced by the development of the sun to and fro.
Taking into account that Sun begins its excursion up to 60 N and S, at that point for a day, the Sun would be overhead on this scope. This would imply that during summer solstice (in northern half of the globe), all the weight belts and likewise wind belts would be reached out up to the 60. Thus, the proportionate region under the exchange winds that streams between the equator and the sub-tropical high-pressure belt would increment and the locale under Westerlies effect would additionally build toward the north.
to test a hypothesis, a scientist could...
a- make observations
b- perform experiments
c- look to the scientific literature to find data
d- all of the above
Answer:
see below
Explanation:
without doubt it is D
Answer:
may be right ans is d
Explanation:
all of above I think because to text hypothesis,a scientist could do all above
What is NOT a function of the endocrine system? Select one: a. Production of white blood cells b. Influencing fluid absorption c. Assisting with sperm production d. Influencing body’s energy level and metabolism
Answer:
Option a. Production of white blood cells
Explanation:
The endocrine system is the system that involves the organs and glands that produce and secretes the hormones that acts on various other activity to regulate responses or activity.
Major function and examples of endocrine system are :
Aldosterone helps in fluid absorption in kidney
Thyroxine helps in regulating body metabolism and energy
Testosterone is responsible for sperm production is regulated
But, WBC formation is not regulated by hormones.
Thus, the correct answer is: option a. Production of white blood cells