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Vlada [557]
3 years ago
8

What is one evolutionary advantage angiosperms have over gymnosperms?

Biology
2 answers:
Amanda [17]3 years ago
6 0
A.) Angiosperms have flowers that attract organisms like insects, which aid in fertilization.
Step2247 [10]3 years ago
5 0

The answer for this question is A

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A forest fire in Florida clears thousands of acres of trees. What are the consequences for the animal populations in the surroun
sammy [17]

The forest fire released CO2 (Carbon dioxide)which is essential for plants but CO (Carbon monoxide)is harmful to many organism including humans.But the forest fire isn't always bad. Sometimes it is a opportunity for predator to hunt animals while they are fleeing for life. Small animals can hide under rock or burned wood to escape fire. Snakes bury themselves in soil. Some of them isn't so lucky, koalas will climb up to the treetops then stick there.

7 0
3 years ago
What are valence electrons?
Ksivusya [100]

Answer:

D

Explanation:

The simple answer is the electrons in the outermost energy level.

Hydrogen has 1 electron in the outermost energy level.

Magnesium has 2 so this tells you that magnesium has a charge of 2

Oxygen has 6  oxygen has a charge of - 2

Fluorine has 7

For most elements, the electrons in the most outer ring determine the valence of the element.

Notice that the non metals work differently than the metals. Mg may have a charge of 2 and that is the number of electrons in the valence right.

Oxygen is a non metal it has a charge of - 2. It gets 6 electrons by subtracting the number of its charge from 8.

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3 years ago
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Which molecules are processed by the rough endoplasmic reticulum (ER)?
mart [117]

Answer:

c is the answet

Explanation:

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Kristen cut her hand on a piece of glass. As the blood clots, how do white blood cells prevent bacteria on the glass from infect
gayaneshka [121]
So white blood cell’s(WBCs for short) main job is to fight infections.
They do this by swallowing the infection.


You see,WBCs do not have a permanent shape.this means that they enlarge and decrease size of parts of their body.So they grow two long arm like structures called pseudopodia which swallow the infection.(pseudopodia means false feet).
You can see the process in the photo I attached from google

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A laboratory technique called polymerase chain reaction (PCR) produces millions of copies of a DNA molecule in only a few hours.
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B. DNA replication is the most similar to PCR
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