You decide to clean your bedroom. You notice that your floor is covered with clothes. You decide to try to

Silent or missense mutations are small-scale mutations that occur when

Andrei [34K]

Answer:

c. a single nucleotide is substituted with no effect

on the amino acid sequence.

Explanation:

silent mutations occur when the change of the dna

sequence within protein - coding portion of a gene

does not affect the sequence of amino acids that

make up the protein. this change typically takes

place at the third position of the codon also known

as the wobble position.

7 0

2 years ago

In biology class one day, Mrs. Chabon wrote six physiological functions on the board. Then, she asked groups of students to each

Romashka-Z-Leto [24]

I believe the answer is group 4
Excretory system removes all the wastes from the body through the creation of feces and Urine, maintains the PH level trough the regulation of H+ from the kidneys, and maintaining water balance by controlling the water concentration within the blood plasma during the excretion process of Urea.

5 0

3 years ago

How might the sources of food differ from island to island

sammy [17]

In terms of biodiversity, islands are special locations that contain a range of creatures and ecosystems for both native and endangered biodiversity. Endemism is typical of many islands. Thus islands are regarded as hot spots for biodiversity from a regional biodiversity viewpoint. In a collective portion of a basic land ecosystem it is much simpler to conserve species diversity than by shielding only one region of an archipelago.

Since every island has a specific variety of plants and animals, it is important that conservationists preserve the entire island chain. Thus allow the sources of food to differ from island to island in an archipelago. The type of producer originated in an island and then the type of consumers consuming it differ from island to island due to huge variety of and different adaptations of organisms.

4 0

2 years ago

Fill in the blood type for samples of the following scenarios. a ) __________ anti-A not present, anti-B present, anti-Rh presen

rusak2 [61]

During blood typing, the blood plasma is checked for antibodies. This is what is meant by "anti" in the statements. Keep in mind that if the antibody against a specific blood type is present, the blood cannot have that type. So, if anti-A is present, the blood type is not A.
Moreover, the Rh antigen determines the positive (present of Rh) and negative (absence of Rh) nature of blood type. If the anti-Rh is present, the blood type is negative. Using this information, we see that:
a) A negative
b) B positive
c) AB positive
d) O negative (O because both anti-A and anti-B are present)
e) AB negative (AB because neither anti-A and anti-B are present)

3 0

3 years ago

Water and minerals needed by all organisms on earth pass back and forth between the biotic and abiotic portions of the environme

mart [117]

This is known as the a biogeochemical cycle. This is a very broad term given for any substance that cycles through biotic (biological) and abiotic compartments on Earth. These cycles are known for carbon, oxygen, nitrogen, phosphorus, sulfur, and water. The water or hydrological cycle is arguably the most well-known cycle. Water cycles between water vapor in the clouds, rainfall, rivers lakes and ocean as well as ground water and back into water vapour. During the terrestrial phase, water also passes through plants and animals.

3 0

2 years ago