Which of these muscles cell types contracts the heart?

Biology

1 answer:

Doss [256]3 years ago

8 0

Cardiac muscles is the answer

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Which of the following are the smallest cells?

Marrrta [24]

B. red blood corpuscles

3 0

3 years ago

Which does not contribute to triglyceride digestion?

kozerog [31]

The correct answer is lipase activity in the large intestine.
Triglycerides are the main components of body fat and human skin oils. Lipases are enzymes which break down the fats or lipids in the body. They are responsible for the digestion and general processing of triglycerides. There are several different lipases in the human body, pancreatic lipase acting in the small intestine, hepatic lipase, lipase acting in the endothelium and lipase in the bile acid.

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3 years ago

If two intermediate-colored chickens together produced 100 chicks, how many would you expect to be black?

sergiy2304 [10]

Answer: 25 of the chicks will be black

Explanation: Since the chickens are intermediate in colour, that is they are not black, they are heterozygous. Let B represent the allele for black colour and B represent the allele for blue colour, therefore the genotype of a chicken with an intermediate colour is Bb. A cross between two Bb chicken will produce 1 BB, 2 Bb and 1 bb chicks. 1 BB will manifest outwardly as black, 2Bb will manifest outwardly as intermediate colored while 1 bb will manifest outwardly as blue colored chicks.

Since one out of four chicks are black colored, if the two chicken produced 100 chicks, the number of chicks that will be black is 1/4 x 100 = 25. Therefore, 25 chicks out of 100 will be black.

See the attached punnet square for more information