Describe the benefits of physical activity for three different body systems

Answers

Answer 1
Answer: respiratory systemas your activity level increases your lungs begin to work more efficiently, pulling in larger amounts of air and increasing the amount of oxygen delivered to your bodycardiovascular systemregular physical activity strengthens the hear muscle so that it pumps blood more efficiently.
musculoskeletal systemphysical activity strengthens muscles and bones, reducing your risk of developing fragile bones as you age.

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The main difference between bacterial chromosomes and eukaryotic ones is that eukaryotes have linear chromosomes. How does the shape of the chromosome affect the way it is replicated?
By locating active __________, geologists determine the likelihood of earthquakes in a region

Which means of particle transport requires input of energy from the cell?A) Diffusion
B) Osmosis
C) Facilitated diffusion
D) Active transport

Answers

D) Active transport. In this process, dissolved molecules move across plasma membrane from a lower to higher concentration. Because they move against the concentration gradient, an energy from the cell is required.

Answer:

d

Explanation:

What are "Chloroplasts"?a.an organelle of some eukaryotic cells in which photosynthesis occurs, using the energy of light to make organic compounds from carbon dioxide and water

b.the substance inside a cell, prokaryotic or eukaryotic, including organelles, but
not including the nucleus of a eukaryotic cell

c.membrane-bound organelles in eukaryotic cells in which cellular respiration
takes place, using oxygen to break down glucose to carbon dioxide and water

d.a cell organelle that is essential to cell functions including reproduction, contains
the cell's chromosomes, and is enclosed by a membrane

Answers

The answer is A because chloroplasts is an organelle of some eukaryotic cells where photosynthesis occurs

Answer:

cloraplast is what makes the plant green

As a galaxy gets farther away from Earth, what happens?

Answers

As a galaxy gets farther away from Earth it gets faster.

Explanation:

First, moving away “from the Earth”. They certainly aren’t going away from the Earth. Everything is moving apart from everything else. No matter where you are in this expanding world, everything else will seem to be dropping from you. The space in within the galaxies is expanding! And the farther away a universe is the more space there is to increase so the faster the galaxy appears to move away from us.

After the Big Bang happened, the universe is constantly expanding. The Universe has expanded for around 13.7 billion years. The further a galaxy is, the faster it would move away from Earth. This principle is called the conservation of momentum.

A gene that makes it possible to distinguish bacteria that carry a plasmid (and the foreign DNA) from those that don’t is called a(an)a. resistance gene.
c. genetic marker.
b. antibiotic.
d. clone.

Answers

It is genetic marker

Sort the given molecules into organic and inorganic substances. C3N2H4 AlBr3 C6H5F CrO3 H2O2 C12H22O11

Answers

We can easily distinguish between organic and inorganic molecules cust by looking at their molecular composition.
Organic molecules are always made out of carbon (C) atoms. Hydrogen atoms (H) are often bound with them in organic molecules, with the addition of other atoms like nitrogen (N), fluorine (F) etc. 
So, the organic molecules from the list above are C3N2H4 (imidazole) C6H5F (fluorobenzene) and C12H22O11 (sugar named sucrose) .

The rest of the molecules are inorganic H2O2 (peroxide), 
CrO3 ( chromium trioxide) and AlBr3 (aluminum bromide)

As the human population increases, which problem is technology least likely to be able to solve?a lack of space in which to live


poor health conditions


dependence on nonrenewable resources


an inadequate food supply

Answers

An inadequate food supply

The correct answer for this question would be:

an inadequate food supply

I hope this helped!