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borishaifa [10]
3 years ago
11

10. What changes during a chemical reaction between two compounds?

Biology
1 answer:
nadezda [96]3 years ago
8 0

Answer:

I think it's chemical bonds I'm not of that helped

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How many animal cell are in the human body​
SIZIF [17.4K]

Answer:

Your body has different kinds of cells. Though they might look different under a microscope, most cells have chemical and structural features in common. In humans there are about 200 different types of cells and within this cells there are about 20 different types of structures or organelles.

5 0
3 years ago
Humans have how many pairs of chromosomes
pashok25 [27]
23 chromosomes is the amount of pairs
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3 years ago
6. Which statement about seagulls and sea stars is true?
Natali5045456 [20]

Answer:

B.  Sea stars are the prey of seagulls

Explanation:

Seagulls eat sea stars, meaning that sea stars are their prey (the organism that is eaten).

Predator: an organism that eats (preys on) another organism

Prey: an organism that is eaten by another organism (creatures can be both predator and prey.  For example, a rabbit is a predator to grass, while they are prey to foxes)

Host: An organism that is fed on by a parasite.  Think of a dog with a tick.  The dog is the host, the tick is the parasite.  

Incorrect answers (and why):

A.  Sea stars do not eat seagulls

C.  If a sea star was a predator to a seagull, that would mean that they eat seagulls.  They do not.

D.  A host is an organism that a parasite preys on.  Not only are sea stars not parasites, but they definitely do not prey on seagulls.  

I hope this helps! :)

4 0
3 years ago
The cell membrane performs several important functions in addition to separating the cytoplasm from the outside environment. It
lyudmila [28]

Answer:The cell membrane controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules.

Explanation:

5 0
3 years ago
What structures does the plant<br> cell have that an animal cell does<br> not?
Strike441 [17]

Answer:

Only plant cells contain chloroplast and a cell wall.

Chloroplasts: trap energy from the sun to produce food for the plant cell

Cell wall: provides support and protection to the cell membrane.

Hope this helps.

8 0
3 years ago
Read 2 more answers
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