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Klio2033 [76]
3 years ago
6

Canine and feline species maintain their reproductive isolation mechanisms due to the fact that the formation of a fertilized zy

gote is impossible. What type of isolation describes this?
a. Gametic
b. Mechanical
c. Temporal
d. Ecological
Biology
1 answer:
Wewaii [24]3 years ago
3 0

Answer;

-Gametic Isolation

Explanation;

-Gametic isolation is a type of prezygotic barrier where the gametes (egg and sperm) come into contact, but no fertilization takes place.

-In Gametic isolation is when sperm of one species may not be able to fertilize the eggs of another species. For instance, sperm may not be able to survive in the reproductive tract of females of the other species, or biochemical mechanisms may prevent the sperm from penetrating the membrane surrounding the other species' eggs.

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1 point
Brut [27]

Answer:

The K-selection reproductive strategy maximizes the survival of offspring by producing <u>few offspring with high levels of parental care.</u>

<u></u>

Explanation:

Depending on how many offsprings members of a species produce and how much care they invest in them, we can divide species into two categories:

  • r-organisms. These organisms produce many offspring, sometimes even thousands of them. They live in unpredictable, dangerous environments with a lot of predators. This is why most of their young die. It's important for at least some of them to survive so that they can continue reproducing and keep the species alive. The parents don't invest much care into their young. Some examples of these species are mice, rabbits, weeds, and bacteria.
  • K-organisms. These organisms are the opposite of r-organisms. They live in more stable environments, which guarantees that their lifespan will be longer. This is why it's not necessary for them to produce many offspring. Parents invest a lot more care into their young. Some examples of these species are humans, elephants, horses, and primates.

Based on this information, we can conclude that the K-selection reproductive strategy maximizes the survival of offspring by producing few offspring with high levels of parental care.

5 0
3 years ago
Antigen processing and presentation antigen processing and presentation is a way for a cell to give information about its activi
vova2212 [387]
Is a way for a cell to give information about its activities.
7 0
3 years ago
PLEASE HURRY
Simora [160]

Answer:

Exocytosis.

Explanation:

A cell can be defined as the structural, fundamental, biological and functional unit of life. Cells are found in all living organisms because they are the basic unit of life. A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells. Generally, cells have the ability to independently replicate themselves. In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles

Exocytosis can be defined as a process which typically involves a cell releasing a large amount of a material (bulk transport) outside of the cell, using vesicles.

This ultimately implies that, exocytosis is a process in which living organisms release or expel large amount of unwanted material through the use of vesicles. Vesicles are cell organelles that ensure materials are properly transported to the right and exact location.

Additionally, exocytosis is a process initiated by the Golgi apparatus because it prepares the material for export by chemically tagging them.

3 0
3 years ago
A/An _______ exists when different concentrations of a substance exist on either side of a membrane.
Alecsey [184]

Answer:It is known as a concentration gradient which in diffusion will always flow from ares of high concentration to areas of low concentrations  

So i believe the answer to this is A.

Explanation:

4 0
3 years ago
Which phase of mitosis involves the coiling of chromosomes, breakdown of the nuclear envelope, and the movement of centrioles to
rodikova [14]
It is the prophase which is the first phase of mitosis.
3 0
3 years ago
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