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ra1l [238]
2 years ago
15

The scientific name for the dog is Canis lupus. The scientific name for the domesticated cat is Felis catus. Dogs and cats live

together, play together, but they do not have offspring together. A cat and a dog can not produce fertile offspring because they are not the same A.class B. domain C. phylum D. species
Biology
2 answers:
FinnZ [79.3K]2 years ago
8 0
I just took the test and the only logical answer would be D. species
iren [92.7K]2 years ago
4 0

The correct answer is option D. species.

It is the individuals of a species which can interbreed to produce fertile off springs. This concept is known as biological species concept. The individuals from different species cannot produce fertile off springs even if they mate. It happens because the eggs produced by the female of a particular species is compatible with the sperms of male of that particular species only. Even if through mating, sperm of a dog will reach the egg of a cat who belongs to another species, it will not be able to fuse with the egg. For fusion of egg and sperm their compatibility is must & they are compatible only if the male and female are of same species.

There are some exceptions to this concept like liger is an off spring which is produced when a male lion mates with a female tiger even though they both belong to different species. But, even though they are able to reproduce an off spring yet this off spring is not fertile.

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AURORKA [14]

Answer:

Number 3

Explanation:

Dominant: 20, Recessive: 20

An allele is the alternative of a gene. On his case, these beans represent the alleles for a simple Mendelian trait, where red is dominant (R) and white is recessive (r).

As states earlier there are 20 red beans (20 dominant alleles) and 20 white beans (20 recessive beans) and each beach represent an allele.

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Skin cells, divide in a continuous manner that makes new skin cells to replace the skin cells we lost. Cells regulate their division by cyclins. Some cells divide faster when it supposed to stop dividing and this will lead to cancer disease.

<u>Explanation:</u>

The process of cell division occurs for many reasons. A single cell is divided into two which in turn they will be divided into four and so on. This corresponds to the process of cell division and cell reproduction. Cell division is  an unique characteristics in human beings. Interactions between signaling proteins produces checkpoints in the cell cycle to ensure that cells do not divide at improper times.

A protein named Cyclins plays a major role in the determination and the regulation of the cell division process. The division that occurs in the cell can be regulated by the this protein type. They acts as a switch for controlling the cell division process. They will signal the cells when to divide and when to stop. When any cell continues to divided even after it is signaled to stop they may lead to a disease called cancer.   These are different form the normal cells because they will be having their own growth factors that controls their growth and they will lose the normal controls on the cell cycle.

4 0
2 years ago
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xxTIMURxx [149]

Answer:

D

Explanation:

4 0
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ahrayia [7]

Answer:

Soil condition directly affects crop growth.

Explanation:

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3 0
2 years ago
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aev [14]
I found the exercise on the internet and the tools are organised below into their corresponding step of the DMAIC cycle.
             

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