BIOLOGY MIDDLE SCHOOL

What is the function of the mitochondria?A.
to secure the nucleus at the center of a cell
B.
to provide energy for the cell
C.
to provide immune defense for the cell
D.
to move materials in and out of the cell

Answers

Answer 1
Answer:

Answer:

a

Explanation:

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If birth rates fall below the replacement level, than a country is in which stage of demographic transition?

Answers

Answer:

Fourth Stage

Explanation:

During the fourth stage of demographic transition, the birth rates with in a population fall below the level of replacement and thus the population of such countries starts shrinking. This was once a common scenario in countries like Japan, Italy and Germany. The economy sees a down fall as the ageing population increases with no replacement of it in near by future.

Mostly the developed nations after the post industrial age are  facing this situation.

Post-transition stage
(Technically the 4th stage)

WHAT KIND OF FACTORS ARE LIGHT,TEMPERATURE, AND SOIL COMPOSITION? A.ecological
B.biotic
C. habitat
D.abiotic

Answers

C would be your answer because, it is a nonliving thing. It is not a living chemical or physical factor in the environment. I hope this helped!
In ecology and biology, abiotic components are non-living chemical and physical  

How do topographic maps represent elevation and relief

Answers

On a topographic map, elevation is represented by countour lines, which is two lines that connect without intersecting. 

Relief is also shown by contour lines but also with a variety of other methods, such as shades and colors
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When the moon is on the same side of the earth as the sun we will see a ___ moona.) full
b.) new
c.) first quarter
d.) third quarter

Answers

Answer:

new

Explanation:

.

Which rock exhibits banding? the topic is earth science

Answers

Metamorphic rock exhibits banding

Animals and plants can cause Biological weathering. What organism lives on rocks and causes it to break down?

Answers

I would say plants. Those plants that grow on the surface of rocks have their roots embedded in the rocks; through wedging action the roots weather the rocks in search of water and nutrients.
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