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LuckyWell [14K]
2 years ago
6

A student drew the following flowchart to show the movement of nutrients.

Biology
2 answers:
Agata [3.3K]2 years ago
7 0

Answer:

D. nitrogen

Explanation:

artcher [175]2 years ago
4 0

Answer: Carbon

Explanation:

Apex

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What feature of both true mosses and ferns makes it most surprising that they can survive for many generations in dry deserts? U
FromTheMoon [43]

Answer:

The correct answer will be option-A

Explanation:

Desert biomes are characterised by the presence of the arid conditions or with few or less amount of rainfall.

The plant groups called the bryophytes and pteridophytes are dependent on the water for their fertilization which allows completing their life cycle.

In the desert conditions provided in the question, the mosses and ferns survived for many generations as these plant groups produced sperms with flagella which helped the sperms to swim in the water provided by the 10-inch rainfall per year and reach the female gamete and fertilize the egg cell.

Thus, option-A is the correct answer.

6 0
2 years ago
Which digestive processes occur first? *
fiasKO [112]
Mechanical digestion so breaking down of the food in your mouth. Hope this help :)
4 0
2 years ago
Read 2 more answers
Checkpoints occur between the stages of the cell cycle. If a cell does not meet certain criteria at the end of a stage, it will
nordsb [41]
The answer to this question is DNA replicates
7 0
2 years ago
Alkaptonuria is an infrequent autosomal recessive condition. It is first noticed in newborns when the urine in their diapers tur
Arisa [49]

Answer:

See the answer below

Explanation:

Let the disorder be represented by the allele a.

Since the disease is an autosomal recessive one, affected individuals will have the genotype aa and normal individuals will have the genotype Aa or AA.

Since the four adults are carriers, their genotypes would be Aa.

                    Aa     x     Aa

Progeny:    AA    2Aa    aa

Probability of being affected = 1/4

Probability of being a carrier = 1/2

Probability of not being affected = 3/4

(a) The chance that the child second child of Mary and Frank will have alkaptonuria = 1/2

(b) The chance that  the third child of Sara and James will be free of the condition = 3/4

(c)

(d) If someone has no family history of the disorder, their genotype would be AA.

                 AA     x     aa

                        4 Aa

<em>The chance that a child with alkaptonuria will have an offspring with alkaptonuria if the child's mate has no family history </em>= 0

(e)

(f) <em>The chance that a child with alkaptonuria will have an offspring with alkaptonuria if the child's mate has no family history</em> = 0

5 0
2 years ago
How are the graphs of a body chemical controlled by negative feedback and a body chemical controlled by positive feedback simila
Anettt [7]

Answer:

brainliest plzzzzz

Explanation:

There is a proper mechanism of controlling the levels of various kinds of hormones and chemicals in our body called as positive feedback and negative feedback.

In a very simple language you can understand it as whenever there is a release of a particular hormone or chemical inside the body in very huge amount then the negative feedback of the body is activated the production of that particular hormone or chemical is stopped and vice -versa for negative feedback.

Explanation:positive feedback and negative both the feedback mechanism are achieved to maintain the proper homeostasis.

Example: release of clotting factor after blood loss is a positive feedback and a hormone is released and then suddenly there is a increase in hormone b, then the amount of hormone a will decrease this is a negative feedback.

7 0
2 years ago
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