What elements are in the most common substance in the human body?
A. Carbon and nitrogen
B. Hydrogen and oxygen
C. Oxygen and phosphorus
D. Calcium and nitrogen

Answers

Answer 1
B hydrogen and oxygen

Related Questions

What is the genotype of an organism?

A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.

B. How the genes are expressed resulting in the physical appearance of the organism.

Answers

Answer:A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.

Explanation:

A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.

What is the main function of the central nervous system ? E2020

Answers

Answer:

The central nervous system (CNS) controls most functions of the body and mind. It consists of two parts: the brain and the spinal cord. The brain is the center of our thoughts, the interpreter of our external environment, and the origin of control over body movement.

Explanation:

Answer:

Main function-the interpreter of the environment and  control over body movement.

The central nervous system controls the body and mind. It has two parts, the brain and the spinal cord. The brain is the center of thoughts..

Biological knowledge is important in all of the following except

Answers

Answer:

both a body of knowledge and an intellectual activity encompassing observation, description experimentation, and explanation of natural phenomenon.

Explanation:

Please HELP!!!
Which of the following best describes an organ system?

A. One or more cell types that perform specific functions
B. Various cells that perform different functions
C. Two or more tissues organized and capable of carrying out a specific task
D. Two or more organs that interact to perform a common task

Answers

Answer:

D

Explanation:

Luminosity has do with brightness of a star. It's essentially the power of the star, or how light is being emitted from the surface. About how much brighter is Antares than the Sun

Answers

The brightness of Antares at visual wavelengths is about 10,000 times that of the Sun, but because the star radiates a considerable part of its energy in the infrared part of the spectrum, the true bolometric luminosity is around 100,000 times that of the Sun.

species I
species II
species III
species IV

Answers

Answer: It’s species II because it matches the unknown

Amoebas make exact copies of themselves. Therefore, they reproduce
A. asexually buy the process of MEIOSIS

B. sexually by the process of MITOSIS

C. sexually by the process of MEIOSIS

D. asexually by the process of MITOSIS

Answers

Answer:

D

Explanation:

Asexual reproduction (requiring one parent) forms exact copies of the parent cell. The type of cell division that produces exact copies is mitosis. Therefore the answer is D.

Answer:

D. asexually by the process of Mitosis

Explanation:

Amoebas make exact copies of themselves. Therefore, they reproduce asexually by the process of Mitosis.

explique le phénomène d'effet de serre​

Answers

Answer:

mi no speak e de spanish

Explanation:

gay pride

can anyone help me with this question? Thank you.

Answers

Answer:

At B part.

Explanation:

At B part the nightfall will happen first because the B part is in the shade and will not present in front of the sun. When the earth rotates its own axis, the shaded part which is B comes in front of sun which means day time is started while on the other hand, the A part is in the shade and will experience nightfall so we can say that the nightfall occurs at B part of the earth.

pls help me i really need help as fast as possible 50 pts!!!!!!!!!!

Answers

Explanation:

the reason this mouse shows natural selection is that the black mouses are more adapted to their environment compared to the tan mouses as the tan mouses are more easily spotted and eaten by the bird. since the black mouse is more adapted to it's environment it is more likely to live on and pass it's trait of the black fur color to it's offspring while the tan mouses are not.

Read the article and use the information to answer the following questions.

Cystic Fibrosis

List four symptoms associated with cystic fibrosis.

Answers

Answer:

so hope it helps i think.

Explanation:

Chronic coughing.

Recurring chest colds.

Wheezing or shortness of breath.

Frequent sinus infections.

Very salty-tasting skin.

Answer: person above is correct

Explanation:

The diagram below summarizes an important process.
Mpho
Which process does the diagram summarize?
Interphase
O A. The Calvin cycle
B. Meiosis
O C. Mitosis
O D. The cell cycle

Answers

Can’t see a diagram.

Answer:

The cell cycle

Explanation:

What type of energy makes wind blow out towards the water at night

Answers

Answer:

kinetic energy

The wind is energy in motion—kinetic energy—and it is a renewable energy source

explain how ionic balance is maintained in the human body​

Answers

Answer:

ion balance is maintain in the body by its ph balance

What are the phenotypes of an organism?
A. the organism's genes

B. the organism's physical traits

Answers

Answer:

A.

Explanation:

The term "phenotype" refers to the observable physical properties of an organism; these include the organism's appearance, development, and behavior. An organism's phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.

Answer:

A. the organism's genes

Explanation:

The phenotypes of an organism are the genes carried by the organism.

help pls will give brainliest

Answers

Answer:

6 months

Explanation:

1 years is full round 6 months is half

Answer:

6 months

Explanation:

Earth orbits the Sun at an average distance of 149.60 million km (92.96 million mi), and one complete orbit takes 365.256 days (1 sidereal year), during which time Earth has traveled 940 million km (584 million mi).

In the lab activity, you will use a chemical called a pH indicator that changes color as the pH of a
solution changes. If you added a pH indicator to two different solutions and they both turned the
same color, what would this tell you about the pH of each solution?

Answers

ph indicator is used to find the acidic or basic nature of a mixture.

there is a range of colours from red to blue

red colour indicates that solution is acidic and blue colour indicates that solution is basic

if two solutions have same colour that means they also have same ph value

Which of the following is a characteristic of invasive species?

Answers

Answer:

They Take resources from native species

Explanation:

An invasive species doesnt grow slowly, they do the opposite they grow super fast becaus ethey are the best out of the others and completly own the place.

The can adapt or they aren't considered invasive, that's why they are so effective

They aren't endangered or else its not invasive, they are thriving because they have 0 competition.

Give brainliest pls

Because of their capacity for rapid growth and reproduction, or because their new environments are devoid of any native predators or pests, invasive species frequently thrive in their new ecosystems. Thus, option B is correct.

What is a characteristic of invasive species?

An invasive species doesn't develop slowly; on the contrary, they accelerate their growth because they are superior to all other species and have taken over the area completely.

Because of this, invading species may pose a threat to native species and interfere with crucial ecosystem processes.

A species must be easily adaptable for it to be invasive. It needs to multiply swiftly. It must result in harm to local property, the local economy, or the local fauna and flora. Accidental introduction of invasive species into a new area is common.

They are so successful because they can adapt and aren't intrusive. Because they have no competition, they are thriving while not being threatened.

Therefore, They take resources from native species.

Learn more about invasive species here:

https://brainly.com/question/20022845

#SPJ2

somebody pls pls help

Answers

Answer:

A

Explanation:

The punctuated equilibrium model of evolution agrees with the theory of gradualism
on the idea of

a) inheritance of acquired characteristics
b) natural selection
c) use and disuse of organs
d) the rate of speciation

Answers

Natural selection. They disagree on the rate, inheritance, and whatever c is talking about.

Those who argue that objectivity is impossible are known as activitists.
O True
O False
ASAP
AND THANK YOU

Answers

The answer is true hope this helps

Explain in at least five sentences what you've learned about how
global warming and climate change are impacting our Earth in different regions of the world.

Answers

Explanation: I'd first address the issue as a whole and explain the meaning and the general impacts of climate change, then use a variety of different places. For example, global warming causes the ice caps to melt in Antarctica. Then, explain how this has an impact on the environment meaning that polar bears could be in life-threatening situations and possibly even become extinct in the future which has a further impact on other animals in that food chain and ecosystem. This is just one example. You could also explain the unbearable heat in countries nearer the equator, which prevent crops from growing; the sea levels rising; or extreme weather events like huge flooding or heatwaves. It depends what you have learnt about in class, but I'm assuming it would be about this sort of thing.

Answer:

Higher death rates. ...

Dirtier air. ...

Higher wildlife extinction rates. ...

More acidic oceans. ...

Higher sea levels.

hope it helps

what is the smallest unit of DNA molecule that can be altered by a mutation and cause a change to the coding of polypeptide

Answers

Nucleotide is the smallest unit of DNA molecule that can be altered by a mutation and cause a change to the coding of polypeptide.

Name & describe the six essential activities of the digestive tract.

Answers

Answer:

Ingestion: Consuming something orally, whether it be food, drink, medicine, or other substance; the first step of digestion. bolus: a round mass of something, especially of chewed food in the mouth or alimentary canal.

Propulsion: Propulsion means to push forward or drive an object forward. A propulsion system is a machine that produces thrust to push an object forward. On airplanes, thrust is usually generated through some application of Newton's third law of action and reaction.

Mechanical Digestion: Mechanical digestion is a purely physical process that does not change the chemical nature of the food. Instead, it makes the food smaller to increase both surface area and mobility. It includes mastication, or chewing, as well as tongue movements that help break food into smaller bits and mix food with saliva.

Chemical Digestion: Chemical digestion involves the secretions of enzymes throughout your digestive tract. These enzymes break the chemical bonds that hold food particles together. This allows food to be broken down into small, digestible parts.

Absorption: Absorption is a condition in which something takes in another substance. The process of absorption means that a substance captures and transforms energy. The absorbent distributes the material it captures throughout whole and adsorbent only distributes it through the surface.

Defecation: Defecation is the term given for the act of expelling feces from the digestive tract via the anus.

Explanation:

Hope this helps <3

Replanting trees on a bare hillside is an EXAMPLE of

Answers

Answer:

Reforestation and restoration

Answer:

Reafforestation and restoration

hope it helps

This process of protein synthesis occurs similarly in most organisms due to the fact that it is the same universal ____ molecule that contains the instructions for it.
A. DNA

B. RNA

Answers

Answer:

A. DNA

Explanation:

This process of protein synthesis occurs similarly in most organisms due to the fact that it is the same universal DNA molecule that contains the instructions for it. So, option (A) is the correct answer.

8. Which observation would be the best evidence to use to argue that there is an evolutionary relationship between two species?

They occupy the same niche.

They have similar fur color.

They have similar DNA base sequences.

They inhabit the same geographic regions.​

Answers

Answer: C: They have similar DNA base sequences

Explanation:

Plz im begging you for a answer, my teacher is checking my progress!!!!!!!!!!!!!!!!!!!!!!!!!

Anthropologists have concluded that modern day humans originated from the continent of Africa. Looking at the distribution of skin tones we now see all over the world today explain why this pattern is makes sense for what we see today.

MUST USE AND HIGHLIGHT THE FOLLOWING KEY TERMS: variation, direct sunlight, UV radiation, Vitamin D, folate (folic acid), equator, evolution, parents, offspring, Africa, survival, natural selection, genes, latitude, adapt/adaptation

Answers

Answer:

Variation

Ape like creatures where able

to survive in Africa because of survival of the fittest, which meant that only the ones who were able to adapt to the conditions were able to live

Kingdoms are a more specific (less broad) category in the taxonomic hierarchy.
A. True

B. False

Answers

true helpful answer to your question

Answer:

false

because if you actually order the levels of classification from MOST specific to LEAST specific, kingdom would be somewhere last.

PLEASE HELP WILL MARK BRANLIEST!
Fungi and bacteria are examples of _____:

A. decomposers, B. producers, C. consumers, D. demagorgans

Answers

Answer:

a. decomposers

Explanation:

Bacteria and fungi are best classified as decomposers. They decompose the bodies of dead plants and animals.

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