Please help I forgot to study!!!

Please Help I Forgot To Study!!!

Answers

Answer 1

pH is a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.


Related Questions

Are chloroplasts found in animal cells ?

Answers

Answer: No

Explanation:

Chloroplasts are the food producers of the cell. The organelles are only found in plant cells and some protists such as algae. Animal cells do not have chloroplasts. Chloroplasts work to convert light energy of the Sun into sugars that can be used by cells.

1 Muscle spasms and locked jaw, followed by convulsions, are symptoms of:
meningitis
cerebrospinal
tetanus
2 Why is tetanus associated with injuries which occur outdoors?
the soil causes tetanus
the iron oxide rust on objects produces tetanus toxins
bacteria in the soil causes tetanus
animals cause tetanus
3 Communication for the senses and muscle coordination in the _____body is accomplished by the system.

Answers

Answer:

In immunology, an antigen is a molecule or molecular structure, such as may be present on the outside of a pathogen, that can be bound by an antigen-specific antibody or B-cell antigen receptor. The presence of antigens in the body normally triggers an immune response. Wik

What is the relationship between water temperature and solubility of the gaseous solute?

Answers

Answer:

Solubilities for gaseous solutes decrease with increasing temperature, while those for most, but not all, solid solutes increase with temperature.

Explanation:

I'm sorry if its wrong

Samantha joins a group that cleans litter out of streams. What sort of impact is this group having on the environment?

Answers

they are having a positive impact because litter is bad for the environment and should be thrown away

The kind of impact this group is having on the environment is removing garbage that could pollute and kill animals, making water cleaner, and more animal life.

What are the consequences of garbage that ends up in rivers?

When garbage is disposed of on public roads, it causes infrastructure problems and flooding. Upon reaching the rivers, it causes environmental imbalance, representing a great threat to aquatic life, in addition to contaminating the water used for human consumption, making it inappropriate and causing diseases.

With this information, we can conclude that the kind of impact this group is having on the environment is removing garbage that could pollute and kill animals, making water cleaner, and more animal life.

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What does this pyramid tell us about the population?

Answers

The answer is A. The population is growing.

The pyramid tells us that population is growing continuously, the growth of population is equal in both male and female population.

What is population?

Population is defined as the quantity or population of people living somewhere who are a particular social, cultural, economical, ethnic, or racial category. Making decisions can be aided by knowledge of how population parameters, such as size, regional distribution, age structure, or birth and death rates, vary over time.

The pyramid is used to show the growth in population of a country or population of the city. In the pyramid the growth of population is equal in both male and female population. The pyramid shows that the population of older generation is less than the population of younger generation peoples.

Thus, the pyramid tells us that population is growing continuously, the growth of population is equal in both male and female population.

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2. "The chick weighs 20 grams." The previous statement can be classified as an:
1. observation
2.Problem
3. Inference

Answers

Observation? J I think so

All photosynthetic organisms have chloroplasts.

options:
1. False, only photosynthetic eukaryotes have chloroplasts
2. True
3. False, only plants have chloroplasts

Answers

I think it’s 2, because in order to do photosynthesis you must have chloroplasts so all photosynthetic organisms have to have chloroplasts

All photosynthetic organisms have chloroplasts. This is definitely false because only photosynthetic eukaryotes have chloroplasts. Thus, the correct option is 1.

What is Photosynthesis?

Photosynthesis may be defined as a process through which green plants and some photosynthetic algae synthesize their own food with the help of carbon dioxide and water in the presence of sunlight.

Cyanobacteria are the largest and most diverse group of photosynthetic bacteria that perform photosynthesis without having the chloroplast. This type of bacterial organism is generally classified into prokaryotes.

Hence, the chloroplast is only present in the members of photosynthetic organisms that belong to the eukaryotic category.

Therefore, the statement "All photosynthetic organisms have chloroplasts" is definitely false.

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if a molecule is composed of several amino acids what kind of biomolecule is it

Answers

Answer: protein

Explanation: protein

Amino acids link together to form a protein. A nucleic acid is held together by the sugar-phosphate complex. A protein is held together by the carbon-carbon bonds. The diagram shows the basic structure of a biomolecule.

Answer:

It is a protein.

Explanation:

Hope it helps!!!

how do scientists calibrate a molecular clock

Answers

Answer: mutations that natural selection can work on. 4.) How do scientists calibrate a molecular clock? ... they compare the number of positive mutations that have occurred in a particular species with the number of negative mutations that have occurred

Explanation:

if the Jaguar becomes extinct is the Eco system more or less biodiverse

Answers

The ecosystem becomes less biodiverse
Less biodiverse because you’re losing an animal and it effects the food chain causing other animals to go extinct or become over populated

Please answer this I need to know. Why am I alive and lonely

Answers

Answer:

I Feel Lonely: What To Do When You're Feeling Alonewww.psychalive.org › isolation-and-loneliness

When we are lonely, we are more likely to see things as hopeless. ... There are actions you can take to combat feeling alone and begin to have more ... Because our brains do not respond positively to seclusion, place yourself in social ... PsychAlive PsychAlive is a free, nonprofit resource created by the Glendon Association

Explanation:

eres hermosa e inteligente y mucha gente te quiere así que no dudes de ti mismo así que no te preocupes

What factors impact the carrying capacity?

Answers

Answer:

food availability, water, and space

Explanation:

hope this helps have a good rest of your night :) ❤


The study of developmental biology shows that
A. closely related species will show similarities in embryos.
B if species have changed over time, their genes should have changed.
C closely related species will show similarities in amino acid sequences.
D distantly related species will show similarities in anatomy.

Answers

Answer:

A

Explanation:

Hope this helps!!!

The study of developmental biology has been found to show that the closely related species show similarities in embryos. Thus, the correct option is A.

What is Developmental biology?

Developmental biology is the branch of science which deals with the study of the process through which an organism such as an animal and a plant grows through and develops with respect to time to more evolved organisms.

Developmental biology includes the biology of regeneration, asexual reproduction of an organism, metamorphosis, and also the growth and differentiation of the stem cells which take place in the adult organisms.

Development of species accomplishes two major objectives which  generates cellular diversity as well as the order within each generation, and it also ensures the continuity of life from one generation to the next generation.

Therefore, the correct option is A.

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Please helppp!!! will give the brainliest it's probably easy

Answers

i think it is amino acids

Enter the correct 4 digit code (no spaces)

Answers

Answer:1d2c3b4a

Explanation:

4312 —————///——//—-/——

Pls help me!!!!!!!!!!!!!

Answers

Answer:

Diffusion

Explanation:

Facilitated diffusion = carrier mediated transport.

which systems are involved in throwing a ball​

Answers

Central nervous system

Newton's third law of motion states that whenever a first object exerts a force on a second object, the first object experiences a force equal in magnitude but opposite in direction to the force that it exerts


Question 5 options:
True
False
I need help from someone who's actually helpful and smart please

Answers

Answer:

true

Explanation:

i took the test

The statement "Newton's third law of motion states that whenever a first object exerts a force on a second object. The first object experiences a force equal in magnitude but opposite in direction to the force that it exerts" is true.

What is Newton's third law?

His third law argues that there is an equal and opposite reaction to every action (force) in nature. When object A pulls on item B, object B pulls back on object A with an equal and opposing force. In other words, interactions lead to forces.

According to the first law, until a force acts on an item, it will not alter its motion. According to the second law, an object's force is determined by multiplying its mass by its acceleration. According to the third law, when two objects interact, they exert equal-sized and opposite-direction pressures upon one another.

Therefore, the statement is true.

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PLEASE ANSWER QUICK WILL GIVE BRAINLY
Please select the word from the list that best fits the definition An example of a weakness in bureaucracies.

bureaucracy
formal
organization
rationality
red tape
reasonability
stability​

Answers

Answer:

Explanation:

A bureaucracy has to justify itself. It always argues that acts in the best interest of those it serves. If it was me answering the question in an essay form I would choose the first choice bureaucracy as part of  my topic sentence.

If you don't believe me, the income tax act in both Canada and the United States (especially in America) is one of the most complex laws ever written. So my answer for you would be Red Tape.

It's formal. It's an organization. It's not always reasonable especially if you have to deal with it. It's stable but not in a good way.

Answer:

red tape

Explanation:

1. What are the three top feelings that you do like to have most? Why?​

Answers

Answer:

Explanatsad mad and happyion:

Answer:

the sensation of feeling free, feeling young, and feeling loved..

Explanation:

Theyre happy emotions and often overwhelming but you feel so good from it

Jhich best describe the role of small intestine in digestion?
A. It temporarily stores the food
B. Secrets bile to help in digestion.
C. Helps in the absorption of nutrients from food.
D. It carries food from the mouth to the stomach.​

Answers

ANSWER: C. Im positive :)

EXPLANATION: The small intestine carries out most of the digestive process, absorbing almost all of the nutrients you get from foods into your bloodstream.

The best option that describes the role of the small intestine in digestion is (C) it helps in the absorption of nutrients from food.

What is small intestine?

The small intestine is a vital part of the digestive system, and its main role is to facilitate the absorption of nutrients from the food we eat. After food is partially digested in the stomach, it enters the small intestine, where it is broken down further by enzymes secreted by the pancreas and bile from the liver.

The walls of the small intestine are lined with small finger-like projections called villi, which greatly increase the surface area available for nutrient absorption.

As food passes through the small intestine, nutrients such as carbohydrates, proteins, and fats are absorbed through the villi and into the bloodstream, where they can be transported to the cells throughout the body to be used as energy or for other purposes.

In addition to nutrient absorption, the small intestine also plays a role in the digestion of carbohydrates and proteins, and it helps to regulate the release of digestive enzymes and hormones.

Overall, the small intestine is a crucial component of the digestive system, and its proper functioning is essential for maintaining good health and well-being.

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Will give the brainliest Question 4 of 30
What is the following diagram called?
Species 1 Species 2
Species 3
Species 4
Ancestral species
to
Species 1 and 2
Ancestral species
to
Species 3 and 4
Common Ancestor
A. A phylogenic tree
B. A Punnett chart
C. A pedigree
D. A cladogram

Answers

Answer:

A. a phylogenetic tree. it says that i need 20 more characters to enter so this is me wasting them. but the answer is A

The given diagram basically represents a cladogram. The correct option is D.

What is cladogram?

A cladogram is a type of diagram that depicts the evolutionary relationships between organisms.

It is a branching diagram in which the nodes represent the descendants' most recent common ancestor. The cladogram is based on the organisms' shared characteristics or traits.

These characteristics, which can be physical or genetic in nature, are used to classify organisms into clades.

Clades are groups of organisms that share a common ancestor, and they are represented on the cladogram as branches.

The organisms are more closely related the closer the branches are to each other. Cladograms are commonly used in biology to study organisms' evolutionary histories.

Thus, the correct option is D.

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Please answer both parts ASAP. Please and thank u

Answers

1st answer D
2nd answer D

what is the difference between active and passive immunity? give and example of each.

Answers

Passive immunity is receiving premade short lasting antibodies. For example, antivenom.

Active immunity is the person's own immune system actively producing long lasting antibodies. For example, a vaccine.

Hope this helps and have a great day!

what types of winds blow constantly, predictably and over long distances?
A. land breezes
B. global winds
C. mountain breezes

Answers

Answer:

Global winds(?)

Explanation: Hope this helps, correct me if I am wrong.

(Edited - Winds, not breezes.)

How much dna is in each nucleus of each cell

Answers

Answer: Look below =3

Explanation: That makes a total of 6 billion base pairs of DNA per cell. Because each base pair is around 0.34 nanometers long (a nanometer is one-billionth of a meter), each diploid cell therefore contains about 2 meters of DNA [(0.34 × 10-9) × (6 × 109)].

Helloooo!!! Marie Here!!!!!!!

Each cell has 1 DNA. When it is mitosis, a piece of DNA breaks down into thing called chromosome.

Hope This Helps! Have A GREAT Day!

why can dna be matched to the person it came from

Answers

Answer:

Since every person inherited DNA from their parents, who inherited it from their parents, and so on, a person's DNA is made up of the DNA of their ancestors. If you and another person both have the same ancestor, there's a chance that you both inherited some of the same DNA.

Explanation:

Plz mark brainliest thanks

Every person inherited there DNA from there parents and each of there own separate cells. There for if i persons DNA is taken they can test for the cells and trace it back to a person

How do you think specific traits help organisms access or utilize resources more efficiently?

Answers

Answer:

Individuals with adaptive traits, traits that give them some advantage are more likely to survive and reproduce. Over time, these advantageous traits become more common in the population. Through this process of natural selection, favorable traits are transmitted through generations.

here are some example

Adaptatio ——A trait that improves an organism's ability to survive and reproduce in an environment

Fitness——The ability of an organism to survive and reproduce

Artificial selection——Selective breeding of organisms to promote the appearance of desirable traits in offspring

Explanation:

Puffins live in the Arctic. Penguins live in the Antarctic. Suggest reasons why puffins and penguins are both similar and different

Answers

Answer:

Puffins are not actually penguins! They are birds that look similar, but are not the same species. Puffins belong to a family of birds called Alcidae, while penguins belong to the family Spheniscidae; their wings evolved to support different functions.

Why are viruses considered to be nonliving?
A)They cannot live outside a host
B)They do not respond to their environment
C)They cannot use energy
D) They have no genetic material

Answers

Answer:

it should be A if im correct.

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