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Gekata [30.6K]
4 years ago
6

Which one of the following diseases is caused by a virus?

Biology
1 answer:
Akimi4 [234]4 years ago
8 0

Answer:

A. Hepatitis B

Explanation:

Hepatitis B is a disease caused by a virus.

Hepatitis B is passed from person to person from bodily fluids.

Tuberculosis, Tetanus, and Strep throat is caused by bacteria.

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Consider a cell in which all of the homologous chromosomes experience nondisjunction during meiosis ii. what would be the result
Setler79 [48]
It will produce gametes that has abnormal no. of chromosomes

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3 years ago
3. In rabbits, spotted coat (S) is dominant to solid color (s) and black (B) is dominant to brown (b). These loci are unlinked.
faust18 [17]

Answer:

Genotype: SsBb

Phenotype: Spotted, black

Explanation:

Homozygous, true-breeding brown spotted will have the genotype SSBB while a homozygous, true-breeding solid black rabbit will have the genotype ssbb.

Crossing the two to produce offsprin:

SSbb   x   ssBB  = All SsBb

<em>All the offspring will have SsBb genotype and since S and B are dominant over s and b respectively, the offsprings will appear black and spotted.</em>

<em>See the attached Punnet's square analysis.</em>

<em />

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4 years ago
What mainly distinguishes nekton from benthos?
ElenaW [278]
B) One swims freely and the other often lives attached to a hard surface.
5 0
4 years ago
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What male reproductive gland is missing in the cat
Vika [28.1K]

Answer:

Seminal vesicles

Explanation:

The seminal vesicles also called vesicular glands are found only in some mammals. Those are paired  tubular glands within the pelvis with the function to secrete fluid that will become the semen.

Male cat does not have a seminal vesicle, but do have other accessory glands that secrete the seminal fluid such as prostate gland and Cowper´s (bulbourethral) glands.

7 0
3 years ago
Can mercury evaporate?
Taya2010 [7]

Answer:

Yes

Explanation:

At room temperature, exposed elemental mercury can evaporate to become an invisible, odorless toxic vapor. ... Elemental mercury is an element that has not reacted with another substance.

3 0
3 years ago
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