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Oxana [17]
3 years ago
13

Select the best answer for the question

Biology
1 answer:
Norma-Jean [14]3 years ago
6 0

Answer:

I think it is B. medium tell me if I am wrong

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You find the density of a substance by dividing its volume by its weight?
Brums [2.3K]

Answer:

The formula for density is the mass of an object divided by its volume. In equation form, that's d = m/v , where d is the density, m is the mass and v is the volume of the object. The standard units are kg/m³.

3 0
2 years ago
what does the term 2pq represent in the hardy-weinberg equation? the frequency of homozygous recessive individuals the frequency
Nostrana [21]

The term 2pq represented in the hardy-weinberg equation is the frequency of heterozygotes and is denoted as option D.

<h3>What is Hardy-weinberg equation?</h3>

This mathematical equation is used to calculate the genetic variation of a population at equilibrium and can be seen below:

p² + 2pq + q² = 1

where

p² is dominant homozygous frequency (AA)

2pq is heterozygous frequency (Aa)

q² is recessive homozygous frequency (aa).

The 2pq can be seen as the heterozygous frequency which is therefore the reason why option D which is frequency of heterozygotes was chosen as the most appropriate choice.

Read more about Hardy-weinberg equation here brainly.com/question/5028378

#SPJ1

8 0
2 years ago
A hypothesis is a testable explanation true or false
Ainat [17]

True.

After forming a hypothesis, or an explanation that would be experimented on, you would be <em>testing</em> it to see if it gives the results you were looking for.

~

7 0
3 years ago
Read 2 more answers
What are the two main types of cells and where are they found in the human body?
irga5000 [103]

Answer:

They are prokaryotes and eukaryotes and prokaryotes are single celled and eukaryotes are multi celled

Explanation:

Hope that helps! Have a fantastic day!

7 0
3 years ago
Most bacteria live in a solution that is hypotonic relative to the cytoplasm of the bacteria. This means that the bacterial cell
lozanna [386]

Most bacteria live in a solution that is hypotonic relative to the cytoplasm of the bacteria. This means that the bacterial cell is constantly taking in water. The cell wall of a bacterium is a peptidoglycan polymer that is tightly cross-linked. This would therefore function to:_________-.

A. regulate the flow of most molecules into and out of the bacterial cell.

B. provide a rigid wall that prevents the cell from swelling.

C. provide a rigid wall that prevents the cell from shrinking.

D. confirm a close relationship to plant cells that have a similar structure and live in hypotonic solutions.

E. make all bacteria fairly uniform in metabolic chemistry.

Answer:

B. provide a rigid wall that prevents the cell from swelling.

Explanation:

When organisms are present in hypotonic surroundings, their cells that are in contact with the surroundings tend to gain water. Bacteria present in hypotonic solution would gain water as their cells are hypertonic than the surroundings. The entry of water would increase the volume of cytoplasm and could lead to the bursting of the cell. However, the presence of a cell wall made up of cross-linked peptidoglycan prevents the swelling of the bacterial cell and allow them to survive in hypotonic surroundings.

6 0
3 years ago
Read 2 more answers
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