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2 years ago

Why are the lungs made up of these

Biology

1 answer:

STatiana [176]2 years ago

8 0

Answer:

because in a giant air sack, there would be no way for the capillaries to exchange gasses, and we would suffocate

Explanation:

the alveoli can only exchange one molecule at a time, they go from our lungs to our bloodstream and not mixing them up.

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Describe the process in which trees communicate with one another

olya-2409 [2.1K]

Answer:

Trees share water and nutrients through the networks, and also use them to communicate. They send distress signals about drought and disease, for example, or insect attacks, and other trees alter their behavior when they receive these messages.

8 0

1 year ago

What type of cell is this

poizon [28]

Answer:

prokaryotic cells do not have a nucleus or membrane bound organelles.They also have small rings of double-stranded extra-chromosomal DNA called plasmids.

3 0

2 years ago

A single layer of irregularly shaped epithelial cells found lining the respiratory tract is called

ValentinkaMS [17]

Diptheria. go see your doctor.

7 0

2 years ago

Why would breathing faster and having your heart beat faster when you exercise help your body to do MRS GREN?

MrRissso [65]

Because you are getting your blood moving I’m you body and it’s like generating your body

8 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

2 years ago