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Butoxors [25]
3 years ago
6

Annelids have a(an) ____ circulatory system, in which blood is contained in a network of blood vessels.

Biology
1 answer:
qwelly [4]3 years ago
3 0
Annelids have closed circulatory system
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7 0
3 years ago
What occurred in the population from 1800 to 1925?
Snezhnost [94]
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Yanni made a chart to compare the strong and weak forces. Which best describes Yanni’s error? Only the weak force is active in t
cluponka [151]

Answer: Option (d) is the correct answer.

Explanation:

Nucleus of an atom consists of protons and neutrons. Protons are positively charged and neutrons have no charge. So, due to the like charges of protons there occurs electrostatic force of repulsion inside the nucleus of the atom.

But due to similar number of neutrons and protons a force that is able to bind both of them together is known as strong nuclear binding energy.

This force is strong enough that it is able to overcome electrostatic force of repulsion. But when there is great difference in the number of protons and neutrons then binding force is not strong enough.

Hence, the atom becomes unstable and undergoes radioactive decay. So, this means weak forces are responsible for radioactive decay.

Thus, we can conclude that the statement which best describes Yanni’s error is that the strong force is responsible for radioactive decay.

8 0
3 years ago
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Which statement describes the motion of the water molecules in this situation? The water molecules move by active transport into
Neporo4naja [7]

The water molecules move by osmosis into the cell from high water concentration to low water concentration.

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Way an egg is so much larger then a sperm cell, need help.
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The egg contains both food and mitochondria in addition to its vital DNA, thats why it is much larger. The sperm cell has to be much smaller than the egg cell, because it is the one that swims. If a sperm cell were as big as an egg, it would not be able to move very fast nor very far.

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