BIOLOGY MIDDLE SCHOOL

What substance is a powerful contributor to weathering and erosion on Earth?A)

wind

B)

oxygen

C)

carbon dioxide

D)

heat

​

Answers

Answer 1
Answer:

Answer:

(d)heat is the answer
Answer 2
Answer: Heat is the correct answer (D)

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A man pushes down on a table.A.What does the table top do to the man?



B.pushes in the same direction as the hand



pushes back against the hand

Answers

Answer:

pushes back against the hand

Explanation:

This can be explained by Newton's third law.

Newton's third law states that every action corresponds to a reaction, of the same module, the same direction and opposite directions. This means that when we push on a surface, beings are pushed by the surface, in the same direction but in opposite directions. The same is true when we hit a surface with your hand. Our hand will receive the same blow that the surface received, in the same direction and in the opposite direction.

For this reason, we can say that if a man pushes a table with his hand, his hand will be pushed by the table too, but in the opposite direction. If the man pushed the table forward, his hand will be pushed back.

Answer:

Pushes back against their hands.

Explanation:

The table pushes back against their hands. This is why we can't break objects easily.

What are some real life examples of a cell membrane?

Answers

Cell membrane of a cell is responsible for the substances that goes in and out of the cell’s cytoplasm and organelles. It is transports different materials externally to internally and vice-verse. Hence the cell membrane is like 1.   The wall, window and door of a house. 2.   The security guard of a certain bank 3.   Or the military sector of a country. Like these three real-life examples, they regulate and control the flow of certain entities from outside to inside and vice-versa.



Inorganic membranes are found under the floor tiles of our bathrooms, in our drinking water filters, and in the fuel cells of industrial plants. Structures that require water resistance are also made up of membranes.

These can be found in gardens, underneath roads, and in ponds and reservoirs.

The cell membrane acts as a barrier and gate. It is semi-porous, meaning that some molecules are able to pass through the lipids bilayer, but others are unable to. Small hydrolysis molecules and gases (e.g., oxygen and CO2) pass through membranes quickly.

To learn more about the membranes, refer to the link:

brainly.com/question/32084334

#SPJ6

What are sub climates

Answers

 the imbetween climates, its not cold its not warm, it subartic, or sub saharran, hope this helps
Sub climates can be humid or hot.... Usually located near the equator.

What is the thick layer of skin on a whale called?

Answers

Adipose tissue, also known as blubber, is the thick layer of fat/skin on a whale. 
The thick layer of skin on a whale is called Blubber. This keeps the whale warm, sound and safe.

ΝWhich compound is a metabolic intermediate of the light-independent reactions in photosynthesis?
ОАТР
PGA
RuBP
NADPH

Answers

3-PGA is the important metabolic intermediate in light independent reactions of photosynthesis.

PGA

Explanation:

Light-independent reaction in photosynthesis is called Calvin cycle and the reaction doesn’t directly require sunlight. But it still needs the products of light reaction. In light-independent reaction carbon dioxide is fixed from inorganic  form into an organic form.

In the fixation each molecule of carbon dioxide reacts with RuBP and forms two molecules of 3-PGA at a time. The reaction is catalyzed by the enzyme RuBisCO. Since 3 molecules of RuBP are involved a total of 6 molecules of 3-PGA will be formed in fixation.

Here the 3-PGA is the intermediate and in the next stage it will get reduced to G3P(Glyceraldehyde -3 phosphate).

Answer:

PGA

Explanation:

Edge 2020

What is reflection of light in all directions called

Answers

the reflection of the light in all directions is called unidirectional radiation or  scattering.
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