To a large extent, the activity of kidneys is controlled by _______________

What do viruses depend on for their reproduction?

Law Incorporation [45]

As viruses cannot reproduce by themselves, they depend on the host cells that they infect to reproduce

7 0

3 years ago

Read 2 more answers

During primary succession, an ecosystem cannot 're-build' with large trees and bushes. Explain.

Luden [163]

I believe they cannot start with big trees and bushes because the there is not enough nutrients in the soil, so instead pioneer species pave the way for primary succession.

7 0

2 years ago

In Guinea pigs, short hair is dominant and long hair is recessive. A

larisa86 [58]

Answer:

a. S represents allele for short hair while s represents allele for long hair.

b. Ss (male) × ss (female)

c. 50% Ss, 50% ss

d. 3 long hair (ss), 3 short hair (Ss)

Explanation:

This question involves a single gene coding for hair length in guinea pigs. The allele for short hair (S) is dominant over the allele for long hair (s).

a. Letter "S" will represent the allele for short hair while letter "s" will represent the allele for long hair.

b. According to this question, a heterozygous male is crossed with a long-haired female. The genotype of the male guinea pig is "Ss" while that of the female is "ss". (see attachment for the punnet square)

c. The possible genotypes of the offsprings in this cross are: Ss and ss, each carrying 50% each as they are produced in a ½ Ss: ½ ss.

d. Since 50% of the offsprings will be both short haired and long haired, If they have six babies, 3 of them will be short-haired while 3 of them will also be long-haired.

7 0

2 years ago

Hey, do you think you can help me with these questions? I'll give some extra points(can give more if needed)

rjkz [21]

Answer:

1. Both neutron stars and black holes are the corpses of stars that died in explosions known as supernovas. Black holes form when the most massive stars die and neutron stars form when stars not as large die. They both have a very strong gravitational pull, but a black hole's pull is stronger than a neutron star. Neutron stars will turn into black holes if the force of gravity breaks the resistance of electrons.

2. White dwarfs are degenerate, which means they can compress matter. The material in a white dwarf no longer undergoes fusion reactions, so it is supported only by electron degeneracy pressure. This causes it to be extremely dense, saving space and energy.

3. A light year is the distance light travels in a year while an astronomical unit is the average distance between the earth and the sun.

4. A convection zone transfers energy by radiation and conduction.

7 0

3 years ago

What is the probability that each of the following pairs of parents will produce the given offspring: 1. AABbCc x aabbcc à AaBbC

ICE Princess25 [194]

Answer:

1) AaBbCc, 50% - 2) AAbbCC, 3,125% - 3) AaBbCc is 12,5%.

Explanation:

1º cross.

Parental) AABbCC x aabbcc

Gametes) ABC AbC ABC AbC ABC AbC ABC AbC

abc abc abc abc abc abc abc abc

Punnet Square) Only filled with the progeny genotype AaBbCc.

ABC AbC ABC AbC ABC AbC ABC AbC

abc AaBbCc --- AaBbCc --- AaBbCc --- AaBbCc ---

F1 Genotype) 32/64 AaBbCc

32/64 AabbCc (shown as the symbol "---" in the

punnet square)

The probability of producing offspring with genotype AaBbCc is 50%.

---------------------------------------------------------------------

2º cross.

Parental) AABbCc x AaBbCc

Gametes) ABC ABc AbC Abc ABC ABc AbC Abc

ABC ABc AbC Abc aBC aBc abC abc

Punnet Square) Only filled with the progeny genotype AAbbCC.

ABC ABc AbC Abc ABC ABc AbC Abc

ABC --- --- --- --- --- --- --- ---

ABc --- --- --- --- --- --- --- ---

AbC --- --- AAbbCC --- --- --- AAbbCC ---

Abc --- --- --- --- --- --- --- ---

aBC --- --- --- --- --- --- --- ---

aBc --- --- --- --- --- --- --- ---

abC --- --- --- --- --- --- --- ---

abc --- --- --- --- --- --- --- ---

F1 Genotype) 2/64 AAbbCC

The rest of the progeny have different genotypes that are represented with the symbol "---" in the punnet square.

The probability of producing offspring with genotype AAbbCC is 3,125%.

--------------------------------------------------------------------

3º cross.

Parental) AaBbCc x AaBbCc

Gametes) ABC ABc AbC Abc aBC aBc abC abc

ABC ABc AbC Abc aBC aBc abC abc

Punnet Square) Only filled with the progeny genotype AaBbCc.

ABC ABc AbC Abc aBC aBc abC abc

ABC --- --- --- --- --- --- --- AaBbCc

ABc --- --- --- --- --- --- AaBbCc ---

AbC --- --- --- --- --- AaBbCc --- ---

Abc --- --- --- --- AaBbCc --- --- ---

aBC --- --- --- AaBbCc --- --- --- ---

aBc --- --- AaBbCc --- --- --- --- ---

abC --- AaBbCc --- --- --- --- --- ---

abc AaBbCc --- --- --- --- --- --- ---

F1 Genotype) 8/64 AaBbCc

The rest of the progeny have different genotypes that are represented with the symbol "---" in the punnet square.

The probability of producing offspring with genotype AaBbCc is 12,5%.

7 0

2 years ago

To a large extent, the activity of kidneys is controlled by ________________ .