BIOLOGY MIDDLE SCHOOL

What is one sign that indicates a physical change​
what is one sign that indicates a physical change​ - 1

Answers

Answer 1
Answer:

Answer:

A - matter changes but no other substance is formed.

Explanation:

A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. Therefore a change of matter is a physical change.
Answer 2
Answer:

Answer:

B) a substance chamges color when exposed to air

Explanation:

I took the test

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Suppose you are trying to build support for your theory about what kind of food an extinct sea creature ate.Which of the following could be evidence supporting your theory?
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Answers

C or D but I’m leaning more towards D because the maps could show you what kinds of plants and animals lived there that’s the animal could have eaten

Cells from a blank organism cannot survive independently​

Answers

Answer:

tardigrade

Explanation:

"The microscopic tardigrade—also known as the water bear—is the only animal that can survive the cold, irradiated vacuum of outer space. We talked to leading tardigrade researchers to find out what makes these little guys so amazing."

What statement correctly describes the drifference between cellular respiration and photosynthesis

Answers

photosynthesis creates energy the plant stores while cellular respiration utilizes it.

Find x.
2 square root 5
3 square root 5
6

Answers

2 square root of 5 is 4.47
3 square root of 5 is 6.70

The function of mitochondria in the cell

Answers

they are the powerhouses of a cell and they act like the digestive system which takes in nutrients and breaks it down, then creates energy. Hope this helps!
;D

Which of the following is most likely the result of organism having lipids in its body?​

Answers

Answer:

B. A walrus stays warm in cold oceans

Explanation:

Lipids are the macromolecules that are stored in adipose tissues and beneath the skin surface. These lipids layer present under skin serve as insulators.

Many organisms found in colder climatic conditions such as walrus of cold oceans have a thick layer of lipids under their skin. This lipid layer is called blubber and keeps the organism warm under cold conditions.
B. A walrus stays cold in the cold ocean.

Lipids can be cause for insulation in animals (fat can protect from the cold).
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