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7nadin3 [17]
3 years ago
12

Can someone please answer my last question its in biology and 7th grade

Biology
1 answer:
Sloan [31]3 years ago
4 0

Answer:

yes please

Explanation:

what's the question

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Which of the following describes the zone of saturation?
lisabon 2012 [21]

Answer:

when the pores are completely filled in the rocks and soil

Explanation:

The zone of saturation is part of the divisions of ground water systems. It is the zone in which the pore spaces within the rock are completely filled with water.

The zone of saturation is where the aquifer lies in a body of water and it is the ground water prospect. Pore spaces can also be filled with hydrocarbons.

Above the zone of saturation is the water table. The water table defines the upper layer of the zone of saturation above which the pore spaces are filled with gas or no water can be found.

7 0
3 years ago
Which of the following are part of the body’s first line of defense against pathogens?
Fed [463]

The answer is "D"

The body's first line of defense is also known as Innate immunity and incudes mucous membranes. Both the intact skin and mucous membranes of the body offer a high degree of protection against pathogens.

 A good example is the mucous membrane of the respiratory tract. It is lined up with cilia and covered with mucus. The coordinated beating of the cilia drives the mucus up to the nose and mouth where the trapped bacteria can be expelled.

(Lymph nodes and white blood cells belong to the second line of defense, not the first) 

3 0
3 years ago
DNA ___________ is important because it ensures that when a cell divides, the two resulting cells have the same genetic code. Pl
slega [8]

Answer: Replication

Explanation: When the cell is preparing to divide it will <u>replicate</u> its DNA so that both of the daughter cells will have a complete set of the DNA. It's like a book of instructions and the cell has to perfectly replicate it so that when it splits into two both of the new cells will have a perfectly made copy of it! Hope this helps :)

8 0
2 years ago
How can a gene map be used? Why do scientists induce mutations in organisms?
jarptica [38.1K]

Answer:

Genome mapping is used to identify and record the location of genes and the distances between genes on a chromosome. Genome mapping provided a critical starting point for the Human Genome Project. Sequenced DNA fragments can be aligned to the genome map to aid with the assembly of the genome.

By inducing mutations, scientists have been able to increase genetic variation, which breeders depend on to produce crops with desirable traits, such as resistance to diseases and insects. ... Mutations can be induced in a variety of ways, such as by exposure to ultraviolet or ionizing radiation or chemical mutagens.

Explanation:

4 0
3 years ago
Can anyone help me please?
Lana71 [14]

Answer:

I think the answer is 2 or 1

Explanation:

(so sorry if im wrong)

5 0
2 years ago
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