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Jlenok [28]
3 years ago
15

What information can a pyramid model tell a scientist about an ecosystem? How might such models be used?​

Biology
2 answers:
sveticcg [70]3 years ago
8 0

Answer:

Explanation:

A pyramid of numbers shows graphically the population, or abundance, in terms of the number of individual organisms involved at each level in a food chain. This shows the number of organisms in each trophic level without any consideration for their individual sizes or biomass. The pyramid is not necessarily upright

Katena32 [7]3 years ago
5 0

Answer:

The structure of ecosystems can be visualized with ecological pyramids, which were first described by the pioneering studies of Charles Elton in the 1920s. Ecological pyramids show the relative amounts of various parameters (such as number of organisms, energy, and biomass) across trophic level

Explanation: hope it helps

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A therapist at a free university clinic treats elementary school children with behavior problems who are referred by a social se
Ivanshal [37]

Answer:

The correct answer is - option A.

Explanation:

The parental permission is necessary to according the law in behalf the children for their participation in a clinical research or their clinical therapy data or records in a clinical therapy.

The best answer among all of the options is option a that is that parental permission is required due to the chances of the children might experience the pressure of the prior relationship with the therapist.

Thus, the correct answer is - option A.

6 0
3 years ago
A carrier mother (XHXh) of hemophilia marries a normal father(XHY). *Use allele letter H What are the mothers and fathers genoty
ZanzabumX [31]

Answer: The mother of the man can be either XHXH or XHXh and pass her normal allele to the son and his father can be either XHY or XhY, he only passes his Y chromosome. The mother of the woman can be XHXH or XHXh and the father could be XhY, then she could have inherited the normal allele from the mother and the affected allele from the father. But also, the mother of the woman could be XHXh or XhXh and the father could be XHY, so in this case she could have inherited the normal alele from the father and the affected allele from the mother.

Explanation:

Hemophilia is an inherited bleeding disorder in which the blood does not clot properly. This can cause bleeding either spontaneously or after an injury.

<u>It is related to the X chromosome and it is recessive for females</u>, this mean they need both affected alleles to develop the trait. <u>Males only need one recessive allele because they only have one X chromosome</u>. This means that females need both parents to be at least carriers (although one or both can also have the disease or both recessive alleles). While males inherit it only from the mother, either she is a carrier (one recessive allele) or she has the disease (both recessive alleles). Then the mother passes the X chromosome with the affected allele to the son, and that son only receives the Y chromosome from the father, which does not have the gene that determines this disease.

If the mother is a carrier, her genotype is XHXh, being XH the normal allele and Xh the affected allele. She does not have hemophilia because she has a dominant allele. The father is XHY, so he does not have the disease because his only allele is normal (dominant)

The mother of the man can be either XHXH (she can only pass a normal allele) or XHXh and pass her normal allele to the son (in this case, the recessive allele is not inherited by chance.) His father can be either XHY or XhY, he only passes his Y chromosome which is not related to the disease. The mother of the woman can be XHXH or XHXh and the father could be XhY, then she could have inherited the normal allele from the mother and the affected allele from the father. But also, the mother of the woman could be XHXh or XhXh and the father could be XHY, so in this case she could have inherited the normal alele from the father and the affected allele from the mother.

4 0
3 years ago
Why do we want to test one variable at a time? a. Because it is hard to setup a data table with more b. It is what has always be
saw5 [17]

Answer:

C

Explanation:

If you have more than one variable then you wont know which variable caused the change. Hope this helped, if it did give it a thanks or whatever.

7 0
4 years ago
How can you tell if an atom has a negative charge? What type of Ion is this?
Softa [21]
ANSWER: If the atom has more electrons than protons, it is a negative ion, or ANION. If it has more protons than electrons,it is a positive ion.
4 0
3 years ago
Read 2 more answers
How can the "shape" of a protein affect its function?
e-lub [12.9K]

Protein function is directly related to the structure of that protein. A protein's specific shape determines its function. if the structure of the protein is altered because of a change in the structure of the amino acids, the protein becomes denatured and does not perform its function as expected.

8 0
3 years ago
Read 2 more answers
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