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aliina [53]
3 years ago
8

When ice is left outside on a hot day, it melts, and then evaporates. which best describes what happens to the molecules in the

ice?
Biology
1 answer:
tekilochka [14]3 years ago
7 0
This doesn't seem like much of a biology question but more of a chemistry one :P

But to answer your question, as the temperature of the water molecules rises, the chemical bonds holding them together begin to fall apart, causing the structure of the ice to fall apart.

When water is evaporated, the chemical bonds holding the water molecules together becomes non-existent, and the water becomes a vapour in which molecules float independent of each other <span />
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Which of the following is an example of a species changing over time.
pickupchik [31]
The examples of species changing over time are statements A, C, and D.

All these changes, such as new types of squash was developed in the garden. weeds evolution to resist chemicals, and the changes in butterflies wing pattern over the years is because of Mutation. Obviously, rabbit's ears are always bigger than mice and Giraffe's neck is always longer than the deer's. In genetics, mutation is the process of permanent alternation of the nucleotide sequence in DNAs.
3 0
3 years ago
*20 POINTS* Need help ASAP please!
nekit [7.7K]

Answer: CONDITIONS FOR HARDY

No mutations should appear in the beetle population because new alleles would change the allele frequencies

There should be random mating among beetles

There should be no natural selection on the beetle population

The population of beetles must be large enough so that genetic drift is avoided

There should be no migration of beetles into or out of the population.

CONDITIONS FOR EVOLUTION-

Natural selection favors green beetles

Purple mutants appear among the Beatles

Preferred mates are red, so these individuals reproduce

Large numbers of brown beetles were killed in a forest fire

A significant number of yellow beetles left.

Explanation: I only added about half the sentence of each answer because it’s to long.

3 0
3 years ago
The shape of a protein is primarily determined by
bulgar [2K]


The best answer is A.

The shape of a protein is determined by its primary structure. The primary structure is the sequence of amino acids  in each polypeptide chain which make up a protein.

The sequence of amino acids is basically a list of amino acids that are linked to each other to form a chain which is known as a polypeptide chain.

The structure of the finished protein will depend largely on the first  (primary) chain of amino acids to be produced to make up that protein.

 

7 0
3 years ago
What is the main function of environmental policy?
kenny6666 [7]

The main function of environmental policy is to <u>reduce human impact on the environment (B). </u>

<u> </u>

<h3>Further explanation </h3>

Humans impact the environment in so many ways such as overpopulation, overfishing, pollution, and deforestation. This condition leads to many other problems: poor air and water quality, climate change, and soil erosion. Increasing population means increasing demand for consumption that may destroy the natural resources and environment.  

The government or an organization creates environmental policies to regulate environmental issues and to reduce human impact on the environment. According to McCormick environmental policy is “any action deliberately taken to manage human activities to prevent, reduce, or mitigate harmful effects on nature and natural resources, and ensuring that man-made changes to the environment do not have harmful effects on humans or the environment.”

The policy regulates the use of resources and to reduce pollution to promote human welfare and protect natural resources. Some example of environmental policy, governments forbade the use of hazardous substances in agriculture or apply maximum emission levels for the industry to ensure minimum environmental quality.  

<h3>Learn more </h3>

A possible future milestone in environmental policy brainly.com/question/6839137

Turning points in environmental policy brainly.com/question/330708

Most important consideration for environmental policy brainly.com/question/1658665

Keywords: environmental policy, human impact on the environment, the function of environmental policy

7 0
3 years ago
Read 2 more answers
The site where the earliest known like haplorhine fossils were found is called the – depression
MrMuchimi
This is the <span>Fayum </span>depression. Here, fossil evidence of a primate ancestor<span> was found predating the divergence between </span>hominoids<span> (apes and </span>humans<span>) and </span>cercopithecids<span> (Old World monkeys). The fossil of a single species </span><span>lived around 30 million years ago in modern-day Egypt and resembled the current New-World monkeys. </span>
6 0
4 years ago
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