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inn [45]
4 years ago
12

During the winter months, water on the surface of a pond will typically freeze and this ice acts as an insulator for the water b

eneath it. As a result, aquatic life is able to survive during the cold winter. The reason that this water expands upon freezing is due to
Biology
2 answers:
damaskus [11]4 years ago
5 0

Answer:

when the water freezes, its molecules are perfectly ordered and separated from each other at the same distance. This generates, that in the ice there are less water molecules in a certain volume, that is, they occupy more space.

The ice (frozen water) when expanding, causes its density to become lower than in a liquid state. For this reason the ice floats in the water and allows life under frozen lakes.

Oduvanchick [21]4 years ago
4 0
Hydrogen bonding allows the water to expand
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How can scientists use vertebrate embryo development to build evidence for the claim that vertebrates are somewhat closely relat
Yuri [45]

Answer:

All early vertebrate embryos develop tails and gill slits, and therefore this type of anatomical evidence supports common ancestry  

Explanation:

Embryology is a discipline that studies the structural/anatomical features and development of embryos. Embryos are a fundamental piece of evidence to support common ancestry among vertebrates because there are homologous structural features that can only be observed during the first stages of vertebrate development. For example, all vertebrate embryos (e.g., fish, chicken and human embryos), develop tails and gill slits during their first stages of embryo development. In consequence, embryology provides evidence for evolution of vertebrates.

3 0
3 years ago
In a chemical reaction, what are the substances present after the reaction.
Bezzdna [24]

Answer:

The substances presented after the reaction has occurred is called the product(s).

6 0
3 years ago
How did the asteroid that smashed into Yucatan, Mexico 66 million years ago kill so many organisms (including the non-avian dino
Bad White [126]

Explanation:

Dinosaurs are living organisms that depends on the environment for survival. As the asteroid hits the Yucatan Peninsula area about 66 million years a couple of things can happen:

Frictional heating of the surface as the earth collided with the asteroid. This heating will cause surface temperature to rise globally and can induce the phenomenon of global warming. This can lead to release of water from reservoirs on the earth surface and hence flooding.

The impact can lead to increase in surface pressure beyond normal and that which life has adjusted to.

Debris in form of dust will be released into the atmosphere and a global air pollution will occur. Gases useful for life will be highly polluted by the vast amount of dusts and other particles discharged into the atmosphere.

3 0
3 years ago
The International Date Line _____.
allsm [11]
The answer is C. is recognized as the location where new days begin.

The International Date Line is an imaginary line if the Pacific Ocean that marks the boundary between one day and the next. When crossing the International Date Line, you subtract a day going east and add a day going west. I hope this helps!!!
5 0
3 years ago
Would the human body want to get back to its optimal (best) settings for temperature, glucose levels, etc.? Explain your answer
timofeeve [1]

Explanation:

Introduction. The tendency to maintain a stable, relatively constant internal environment is called homeostasis. The body maintains homeostasis for many factors in addition to temperature. For instance, the concentration of various ions in your blood must be kept steady, along with pH and the concentration of glucose.

I THINK THIS IS THE ANSWER GOOD LUCK

5 0
3 years ago
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