Which type or types of energy does a blimp circling above a sporting event have?

Which of the following statements is an accurate description of proteins? Which of the following statements is an accurate descr

Brut [27]

Answer:

b. the 20 amino acids found in proteins differ in the composition of their R groups, which may be either polar or charged.

Explanation:

Since the proteins are polymers joined by a big number of amino acids, all the joins occur the same way because in all the amino acids there is always one part that is exactly the same in all of them.

The rest of the molecule in the amino acids, the R group, is different in each one, that is the characteristic of each one, and this is the part that can give the name and some other chemical properties.

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1 year ago

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Arteries are blood vessels that transport oxygen-rich blood and nutrients throughout the body. What level of organization is an

Contact [7]

Answer:C

Explanation:

The arteries are not a cell bc that is too simple a tissue is also too simple its not a system bc arteries are not a lot of organs working together so its C

5 0

2 years ago

During an action potential, the rapid decrease in sodium ion permeability and the simultaneous and rapid increase in potassium i

I am Lyosha [343]

The answer is repolarization. In the first phases of an action potential,
Sodium ions flow into the cell, through the voltage-gated ion channels, causing depolarization from the resting potential of -70 mV. In the later stages of the action potential, the potassium ion selective filter channels open and potassium ions move from inside of the cell to the outside. This repolarizes the cell before sodium ions begin to be pumped out of the cell.

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2 years ago

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Uma ameba que tivesse seu habitat no meio marinho, sendo isotônica em relação a esse meio, com certeza poderia dispensar em sua

Alex17521 [72]

C) Vacúolo contrátil

4 0

2 years ago

Alleles A and a are located on a pair of metacentric chromosomes. Alleles B and b are located on a pair of acrocentric chromosom

Leto [7]

Answer:

See the second attached image showing the gametes from the parent with the location of the centromere indicating the type of chromosome

Explanation:

According to the position of the centromere, chromosomes can be of 4 types namely:

Metacentric
Acrocentric
Telocentric
Sub-metacentric

A metacentric chromosome is a chromosome that has no short or long arm. The arms are equal in length with the centromere joining the two sister chromatids located at the center.

Acrocentric chromosomes have unequal arm lengths with the centromere skewed towards one end of the chromosome.

Telocentric chromosomes have their centromeres at one end of the chromosome.

Sub-metacentric chromosomes have unequal arm lengths but the centromere is not as skewed to one end of the chromosome length as found in acrocentric chromosome.

The only possible gamete from aa bb parent is ab. Recall that the allele a is located on a metacentric chromosome while allele b is located on acrocentric chromosome.

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2 years ago