what do we call the change in the ratio of alleles caused by the environment

Answers

Answer 1
Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance.

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Please help me with this question please

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4) b removing more co2 from the atmosphere

5) a more sea ice melting

6) tolerate c

7) stained teeth b

8) polar bear will consume less seal meat

9) past and more current research (not sure)

As a student, what can you contribute to help curb down the problem on climate change?​

Answers

Answer:

Make sure the lights are off if you are the last to leave the classroom, take shorter showers, and consume less meat and dairy products are all good ways you can reduce your personal footprint. Taking the time to get involved in conservation efforts in your area is a great way you can help fight climate change.

Compare of the growth of two groups of plants in this experiment

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In the experiment with plants being grown at different temperatures to see how it will affect a plant's growth, the control group is the plant being grown at room temperature. The experimental group includes the three plants being grown at temperatures greater than room temperature.

During which of the following years were small seeds likely most
abundant on Island B?
O 1977
O 1980
O 1982
O 1984

Answers

The answer 1984 bc it is

During which of the following years were small seeds likely most

abundant on Island in  1984.

What is seed dispersal ?

Seed dispersal is the process where the movement and spread of seed occur away from the parent plant by different carrier

Dispersal of seeds is less competition between seeds and the act of seed dispersal includes three phases such as departure, transfer and settlement

There are five types of dispersal mechanism such as  wind (anemochory) water (hydrochory), gravity (barochory), ballistic and dispersal done by animals (zoochory).

The most effective method was the zoochory, but today the most effective seed dispersal is the seed dispersal done by humans, because of the big technology boom.

For more details regarding seed,  visit

https://brainly.com/question/29093380

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Which current would help an explorer sailing westward from Europe across the Atlantic Ocean?

Answers

Answer:

The North Atlantic Drift, more formally known as the North Atlantic Current.

Explanation:

The current is pretty strong and increased travel speed significantly, especially back in the day when cross-atlantic travel took months.


Ecosystem are grouped together into larger areas
called biomes. How
would you define a biome?

Answers

Answer:

A biome is a large collection of flora and fauna occupying a major habitat

In a laboratory study, antibiotic resistance was shown to arise in populations of lab-grown bacteria in as few as twenty generations. As the dose of antibiotic increases, the bacterial populations continue to develop resistance to the drugs. A laboratory researcher makes a claim as to the origin of the gene that confers antibiotic resistance in the bacterial population. Which of these claims accurately supports that genetic variation could arise in the bacterial populations in the laboratory? Select ALL that apply. A)Bacteria can exchange chromosomes via homologous pairing in meiosis. B)Chromosome number can double when bacterial cells fertilize other bacteria, creating genetic diversity. C)Changes to the genome can occur when the bacteria reproduce , forming offspring with new phenotypes. D)Viable errors in replicating the bacterial chromosome can lead to genetic changes that result in new phenotypes. E)Induced mutations occur in the genome of he bacteria when the DNA is exposed to environmental factors that act as mutagens.

Answers

Answer:C,D,E

Explanation:I did the USA test prep

Answer:

C,D,E

Explanation:

Which two statements represent The fact that the United States functions under the rule of law?

Answers

Answer:

All government officials must obey criminal laws

+

The president and Congress are not above the constitution

Explanation:

I don't really have an explanation, lol. I just know cause I love history and this question was easy for me.

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