BIOLOGY HIGH SCHOOL

For the average young adult female resting in a reclined position, the heart pumps out approximately 5 liters of blood per minute. Blood flows through the body, supplying oxygen and nutrients to and removing waste products and heat from cells undergoing metabolism. What activity will substantially increase blood flow volume of this young adult?A) a vegetarian diet
B) strenuous exercise
C) playing video games
D) a diet high in carbohydrates

Answers

Answer 1
Answer: Probably B) strenuous exercise. If not B then it's probably A. I don't know for sure though
Answer 2
Answer:

the answer is B for sure

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what does mechanical digestion in the stomach involve ? ( 1point ) A. absorption of nutrients by villi B. pepsin and bile C. smooth muscle contractions D. bile and pancreatic fluid

Answers

The mechanical digestion in the stomach involves the contractions of muscle smoothly. Thus, the correct answer is C.

What is digestion?

The process of converting food into nutrients to use it as energy and for development is called as digestion. The digestion takes place mechanically and chemically.

In the chemical process of digestion, food is broken down with the help of enzymes whereas in the mechanical process of digestion food is broken down with the help of chewing from teeth or tearing.

Therefore, option C is correct as this breakdown through teeth involves contractions and relaxation of muscles.

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Final answer:

Mechanical digestion in the stomach involves the physical breakdown of food through smooth muscle contractions, which churns and mixes the food, preparing it for further chemical digestion.

Explanation:

Mechanical digestion in the stomach involves the breaking down of food into smaller bits using physical force. This process includes the smooth muscle contractions of the stomach to churn the food. This mechanical churning of food in the stomach serves to further break it apart and expose more of its surface area to digestive juices, creating an acidic soup called chyme.

These contractions isolate small sections of the stomach, moving the contents back and forth while continuously subdividing, breaking up, and mixing the contents. By moving food back and forth in the stomach, mechanical digestion mixes food with digestive juices and facilitates the further process of chemical digestion.

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Your science teacher asks you to build a model of a cell. The model should look like a city, and buildings in the city should represent parts of a typical cell. Each building's real-life function should be like the function of the organelle it represents. For example, the vacuole of a cell, which stores water, could be a water tower in your cell city model. What building should represent the nucleus, and why? A). factory:manufacturing B). city hall:control center C). power plant:provides energy D). highways and streets:transportation

Answers

The answer is B. City hall:control center...

What's happens to biomass as you move up the biomass pyramid

Answers

Answer;

The biomass and energy decreases as you move up the biomass pyramid.

Explanation;

  • Biomass is the mass of material in living organism. It is usually measured as dry mass of biological material in grams. A biomass of organisms at different levels of a food chain can be shown in a pyramid of biomass.
  • The biomass of in each trophic level is always less than the trophic level below because not all organisms at one stage are eaten by the same stage above. Some material and energy is passed out as waste by the organism. Some of the energy is used for growth.
  • Therefore, biomass and energy decreases as you move up the biomass pyramid from one trophic level to the next.
the amount of energy decreases. the top of the pyramid always has the least amount of energy and the bottom of the pyramid has the most amount of energy. 

Based on what you know about the six types of infectious agents, what type of agent do you think was plaguing Anna explain your reasoning

Answers

Infectious agents are those that corrupt and prey on an organism or a host. This is sometimes called parasitism when a foreign organism consumes a host by preying on its nutrients and food. Hence, we are uncertain in Anna's case because there is no clear description of her symptoms. 

Which group of organisms has the derived characteristics of true tissues, bilateral symmetry, and a pseudocoelom?

Answers

The correct answer is Nematodes, also known as roundworms. They fit the description that you provided.

The group of organisms that has the derived characteristics of true tissues, bilateral symmetry, and a pseudocoelom is the animalia kingdom. They present all of the mentioned characteristics.


An example of a pseudocoelom is the roundworm.


I hope it helps, Regards.

What is one reason that matter is able to move around within the Earth?

Answers

One of the reason that matter is able to move around within the earth is THE INTERACTION BETWEEN MATTER AND ENERGY.
The major source of energy on the earth is the sun. The heat energy from the sun is used to drive many chemical reactions on the earth. When the heat energy of the sun heat up a matter, it increases its temperature and causes the particles in the matter to move with greater motion until phase change occur. For instance, when the sun heat up water in the ocean, the particles of the water move about with great energy until they escape into the atmosphere in form of vapour.

The answer is: The earths interior is hot.

:) Please give brainliest :)
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