BIOLOGY MIDDLE SCHOOL

Which of these statements is true about adaptive evolution? The ability to learn plays a key role in the process of adaptive evolution. Viruses play a key role in the process of adaptive evolution. Sudden changes in the somatic cells of organisms play a key role in the process of adaptive evolution..

Answers

Answer 1
Answer: The correct answer is "Sudden changes in the somatic cells of organisms play a key role in the process of adaptive evolution". Adaption in evolution is caused by sudden gene mutations that affect an organism's offspring and give it - potentially - a better chance of survival. For example, a giraffe who passed on a mutated gene for a slightly longer neck to its offspring gave its offspring a better chance of reaching untouched food, and thus a survival advantage.
Answer 2
Answer:

Answer:

The correct answer is B.) Viruses play a key role in the process of adaptive evolution.

Explanation:

I just did the quiz and I got the correct answer.

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Can someone please help me with the science word search in the pic above? Please find the 5 words I haven't found yet.

Answers

Biotic is right above organsim
Sexual is between euykarya and heterotroph as is abiotic
Prokaryote is next to heterotroph, domains and bacteria
Biotic is above organism!

I may have spelt 1 or 2 wrong because of the lines over the words :D

What happens at mid-ocean ridges?

Answers

A mid ocean ridges, the tectonic plates collide, forming convergent boundaries:)

Answer:

new ocean floor forms magma

Explanation:

grad pnt

In this organelle, carbon dioxide and water are converted to _________ and oxygen.

Answers

During photosynthesis, carbon dioxide and water are converted into glucose and oxygen. This is done by trapping light by the chlorophyll pigment, present in plants and algae. The process takes place in an organelle called as a chloroplast.The ultimate end product is energy in the form of ATP.
the answer is B: glucose

What happens to water once it reaches Earth's surface

Answers

If you're referring to rainfall, much of the water evaporates eventually after reaching Earth's surface. If it falls in the ocean of course that is not usually the case.

Final answer:

When water reaches Earth's surface, it can become groundwater, accumulate in bodies of water, or evaporate into the atmosphere.

Explanation:

When water reaches Earth's surface, it can undergo several processes. First, it can soak into the ground and become groundwater, which fills up spaces in soil and rocks. Second, it can accumulate in bodies of water like lakes, rivers, and oceans. Finally, some of the water can evaporate back into the atmosphere, where it will eventually condense and form clouds, leading to precipitation and the water cycle.

Learn more about Water Cycle here:

brainly.com/question/35917024

#SPJ6

a soccer ball is rolled across four different surfaces:a tile floor,a paved road,a grassy field,and a cement side walk.which surface will slow the movement of the soccer ball the most?explain why.

Answers

The grassy field would slow down the soccer ball the most because it is not a very flat smooth surface. The grass is very thick and kind of grabs the ball.The paved road, tile floor, and cement sidewalk are flat and smooth
the grass would slow the ball down because of friction and the road, sidewalk, and tile floor would make the ball go faster because the surface is smooth.

Before the Krebs cycle can proceed, pyruvic acid must be converted into (a)citric acid (b)glucose (c)acetyl CoA (d) NADH

Answers

TCA or the citric acid cycle is a biochemical step in which the saved energy is released by the oxidation of Acetyl Co-A in the cells.

The correct answer is:

Option C. Acetyl Co-A.

This can be explained as:

  • In the process, the pyruvic acid or the pyruvate is split to produce CO₂,ATP, NADH and FADH.

  • The energy liberated during the TCA is the main power source for living cells.

  • It is the most important step in the aerobic inhalation-exhalation process.

Therefore, pyruvic acid must be converted into acetyl CoA for the cycle to proceed.

To learn more about acetyl CoA and Krebs cycle refer to the link:

brainly.com/question/11310480
Pyruvic acid must be converted into c)Acetyl CoA before the Kreb cycle can proceed.
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