BIOLOGY MIDDLE SCHOOL

What is the ozone layer?
Why is it important to humans?

Answers

Answer 1
Answer:

Answer:

The ozone layer absorbs most of the Sun's ultraviolet radiation in the Earth's stratosphere.

Explanation:

It is important to humans because it protects us from getting sun burnt and from our body receiving too much radiation.
Answer 2
Answer:

Answer:

it protects us from radiation from the sun

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Why do you think the location surrounding the Pacific Ocean is known as the Ring of Fire

Answers

because its edges mark a circle of high volcanic and seismic activity (earthquakes)


hope I helped!

What organic matter contains stored energy?? (12)

Answers

Biomass it the organic matter that contains stored energy

Gradualism is a pattern of evolution in whichA. a single species evolves into several closely related species.
B. several distantly related species develop similarities.
C. a species evolves at a slow, steady pace.
D. a species has periods of little evolution interrupted by periods of rapid evolution.
 
Mass extinction would most likely result from which of the following events?
A. A disease kills off a single species of predator within an ecosystem.
B. A wildfire burns a national park.
C. Global temperatures drop several degrees after several massive volcanic eruptions.
D. A massive earthquake strikes North America.

Answers

1.   C. a species evolves at a slow, steady pace. 

Gradualism, is the process by which a certain specie or creature undergo changes and variations in a limited and solely focusedly confined in long period of time.

2.       A. A disease kills off a single species of predator within an ecosystem.

Mass extinction is a massive and global elimination in a certain specie or species. It doesn’t involve itself only in a secured and measurable area but it impacts the whole large-scale of population as a whole.    



What are the nitrogenous bases in DNA? Which pair together?

Answers

The nitrogenous based in DNA are as follows; Adenine (A), Guanine (G), Cytosine (C) and Thymine (T).
Adenine pairs with Thymine (AT) and Cytosine pairs with Guanine (CG)

Final answer:

The DNA consists of four nitrogenous bases: adenine, guanine, cytosine, and thymine. Adenine pairs with thymine, and cytosine pairs with guanine in DNA.

Explanation:

The nitrogenous bases in DNA consist of adenine (A), guanine (G), cytosine (C), and thymine (T). These bases pair together to aid in the formation of the DNA's double helix structure, adhering to specific pairing rules. Adenine pairs with thymine, and cytosine pairs with guanine, maintaining the structure and function of the DNA molecule.

Learn more about Nitrogenous bases here:

brainly.com/question/32817192

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A group of like cells together is called:Select one:
a. Cells
b. Tissues
C. Organs
d. Organ System​

Answers

The answer is (b.)
A group of cells make up tissues, the tissues make up an organ, and organs working together become an organ system.
The answer is, D. Organ system

A(n) _____ is an abbreviation for the name of an element and has either one or two letters.1.) atomic mass
2.) chemical symbol
3.) nuclear fusion
4.) periodic table
5.) group
6.) plasma

Answers

This is refered to as the chemical symbol. It is derived from the Latin name for the element which is why some elements like potassium (K) and sodium (N) have symbols different from their name on the periodic table.
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