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klemol [59]
3 years ago
7

Water is unusual because it expands as it freezes. Very few substances have this property. The reason liquid water is more dense

then ice can be best explained by?
Biology
2 answers:
zhannawk [14.2K]3 years ago
5 0

Answer:

When the water freezes a reticulum is formed that occupies more space and is less dense than liquid water since the water on cooling decreases its volume. The reason why the water is denser in a liquid state is because, when it goes to a solid state, the water molecules are cold and still and the hydrogen bonds keep them constantly at the same fixed distance, while when they are in a liquid state, their hydrogen bonds are not at a fixed distance, but more separated.

dalvyx [7]3 years ago
3 0
It can be explained by its surface tension.
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Answer:

The correct answer is option C. up-regulation.

Explanation:

When the body requires the increased level of the hormone, target cells increase the synthesis of more receptors on the cell surface of the target organ. This process is known as the up-regulation of the receptors for the hormone.

Up-regulation is an increase in the receptors present on the cell surface of target cells so that cells can easily bind to the hormone. Up-regulation makes the cells increase the sensitivity to a hormone.

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3 years ago
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joja [24]

Answer:

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Explanation:

In large animal groups, social behavior enables to obtain an evolutionary advantage over non-social species by making decisions that are likely to be beneficial for the group. In humans, a comprehensive understanding of these benefits has shown to be useful in different areas ranging from social to economic systems.  

Cooperative Hunting is a social behavior that enables predatory social species like lions to hunt larger organisms, thereby improving the adaptive fitness of individuals.

Bird flocking is another type of social behavior in which a group of bird is in flight. This behavior is shared by very different species such as insects and fish. Flocking has shown to be beneficial to individual birds to take care of predators and to find food.

7 0
4 years ago
Plants with one cotyledon in the seed are called
chubhunter [2.5K]

Answer:

monocotledon

Explanation: I hope this helps

7 0
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Read 2 more answers
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Goshia [24]
The anchoring junctions
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3 years ago
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Alenkinab [10]
When potatoes are in ground, they do not swell with water when it rains. The potato is already filled with water. The potato cannot gather the minerals directly. It is the roots that absorb the nutrients and send it to the potato. The rain water has little effect on the potato. I hope the answer has helped you. 
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3 years ago
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