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Nimfa-mama [501]
3 years ago
11

Inside each of your lungs there are tubes called bronchi. these branch into even smaller tubes much like the branches of a tree.

what are at the ends of these tubes?
Biology
2 answers:
marishachu [46]3 years ago
4 0
I think it is bronchioles.
azamat3 years ago
3 0

Answer: Small air sacs.

Explanation:

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What are the 10 central themes of biology and can you explain them?
nlexa [21]

Answer:

1. Emergent Properties

2. The Cell

3. Heritable Information

4. Structure and Function

5. Environmental Interactions

6. Feedback and Regulation

7. Unity and Diversity

8. Evolution

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10. Science, Technology, and Society

Explanation:

1. The fact that complex organisms derive from small, simple bases.

2. Basic unit of life

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7. All organisms may differ in looks but we are made up of similar DNA

8. explains how organisms develop over decades

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10. We learn about the world through biology.

8 0
3 years ago
Which best describes the sympathetic nervous system?
wariber [46]

I think it's fight or flight

7 0
3 years ago
Read 2 more answers
Hey can someone please help will mark brainliest
ankoles [38]

Answer:

C

Explanation:

Because pure oxygen cannot be absorbed by the lungs unless diluted or adding extra oxygen to it .

3 0
2 years ago
In a species of birds, blue feathers (B) are incompletely dominant to the gene for white feathers (b). Individuals that are hete
Effectus [21]

Answer:

0%

Explanation:

A bird with blue-tipped feathers (genotype Bb), when crossed with a white bird (genotype bb) can produce offspring with genotypes according to the following Punnett square:

\begin{array}{ccc}\ \ \ &\ B&b\\\end{array}\\\begin{array}{c}b\\b\\\end{array}\left[\begin{array}{cc}bB&bb\\Bb&bb\\\end{array}\right]

In other to have entirely blue feathers, an offspring would have to have the BB genotype. Since it is not possible to obtain this genotype by crossing the birds in question,  the percent chance that an offspring will have entirely blue feathers is 0%.

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3 years ago
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Nataliya [291]

Answer: B

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G protein-coupled receptors (GPCRs), also known as seven-(pass)-transmembrane domain receptors, 7TM receptors, heptahelical receptors, serpentine receptor, and G protein–linked receptors (GPLR),comprises of a large protein family of receptors that discover molecules outside the cell and initiate internal signal transduction pathways and, eventually, cellular responses. They are called seven-transmembrane receptors because they pass through the cell membrane seven times

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