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Neko [114]
3 years ago
14

What characteristic of cardiac muscle causes contraction of the heart as a unit?

Biology
1 answer:
Readme [11.4K]3 years ago
6 0
The cardiac muscle has intercalated disk that allows rapid transmission of the impulse. This will allow the cardiac muscle to have a coordinated way. The heart muscle has pacemaker that will spread the signal in regular time. The transmission of impulse is also controlled by a few checkpoint like the bundle of his to make the signal to the Purkinje fiber of left and right ventricle at the same time.
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At the conclusion of a unit about reliable source material and contemporary journalism, a teacher asks her students to write two
denis23 [38]

Answer:

Analyze

Explanation:

Bloom's Taxonomy is a method of classifying learning from complex to specific. Mostly represented as a pyramid from bottom to top is remember, understand, apply, analyze, evaluate and create.

For this example of a "fake news" story the tier of "Analyze" is applicable since it will require the use of judgement, and comparing and contrasting as well as discernment skills.

7 0
2 years ago
In Drosophila, straight wings are dominant to curved wings (c), smooth eyes are dominant to sparkling eyes (spa), and tan body i
77julia77 [94]

Answer:

\frac{1}{8}

Explanation:

Straight wings are dominant over curved wings

Let Straight wings : H

curved wings : t

smooth eyes are dominant to sparkling eyes

let smooth eyes = H

spark ling eyes = t

tan body is dominant to ebony body color.

Again; Let tan body color be H

Let ebony color be t

If flies that are heterozygous for all three traits are crossed;

we have HtHtHt × HtHtHt

Then the selected trihybrid traits for the cross will be (HHH,HHt, HtH, Htt, tHH, tHt, ttH, ttt)

We will realize that from the punnet square in the diagram below, the proportion of the offspring would you expect to be heterozygous for all three traits (i.e HtHtHt) is asterisk in the punnet square and will be \frac{8}{64}

= \frac{1}{8}

7 0
3 years ago
Sometimes multiple genes for the same trait can be expressed, causing a "mixing" of the phenotypes. This is known as?
anzhelika [568]

Answer:

arre pero por que todos están relocos

8 0
2 years ago
Read 2 more answers
Which structure has the least effect on the ability of a virus to infect and replicate in a host cell?
AleksAgata [21]
The answer is an envelope.

A virus is an infectious agent that can replicate only inside a host cell. When it is outside the cell, it consists of genetic material coated with protein capsid. Some viruses also have an envelope which covers capsid. The function of the envelope is to identify and bind some receptor sites on the host membranes. After fusing with the cell membrane, it allows to capsid and genetic material to enter the cell and infect it.
6 0
2 years ago
Read 2 more answers
Are the percentages calculated in a Punnett Square guaranteed to happen to those parents' children?
dimaraw [331]

Answer:

A. No, they are predictions of the probability of certain traits getting passed on.

Explanation:

5 0
2 years ago
Read 2 more answers
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