3 years ago

What are the locomotory organs of fish?

1 answer:

4 0

Answer:

The tail and the caudal fin are the chief locomotory organs of fish and are used for rapid swimming during which tail is lashed from side to side by "alternate contraction and relaxation" of the myomeres on the two sides of the vertebral column.

Explanation:

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Dr. Smith's parents have normal hearing. However, Dr. Smith has an inherited form of deafness. Deafness is a recessive trait tha

meriva

Answer:

Option B, Dd and Dd

Explanation:

It is given that deafness is a recessive trait.

Let the recessive trait be represented by "d"

Normal hearing is a dominant trait and let it be represented by "D"

It is given that Dr. Smith's parents have normal hearing , hence they can have genotype -

either Dd X DD

Or Dd X Dd

but Dr. Smith has an inherited form of deafness , thus his genotype would be "dd". Considering the genotype of Dr. Smith , his parents would be having genotype Dd and Dd.

Thus option B is correct.

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3 years ago

Cystic fibrosis is a deadly disease of the lungs and digestive system. It is inherited as a recessive trait. How can two healthy

azamat

You may not have cystic fiborosis to still be a carrier of it. You would not know if you were a carrier until you have a child that is born with it.

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4 years ago

The sun weathers rocks by______. A. Dissolving it’s minerals

Kryger [21]

The sun wheathers rocks by heating its minerals unevenly.

Hope this helps chu