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Aleks04 [339]
3 years ago
5

Does anyone know what cells are in the respiratory system

Biology
1 answer:
tangare [24]3 years ago
8 0

Answer:

The respiratory epithelium in trachea and bronchi is pseudostratified and primarily consists of three main cell types – cilia cells, goblet cells, and basal cells. The ciliated cells are located across the apical surface and facilitate the movement of mucus across the airway tract.

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What evidence links echinoderms, hemichordates and chordates to the same evolutionary lineage?
sleet_krkn [62]

Answer:

Embryological evidence

Explanation:

Deuterostomes is a group that includes echinoderms, hemichordates, and chordates. Although these animals exhibit a wide variety of body plans, they share a mouth secondarily formed during embryo development, which it is believed to be an evolutionarily derived character present between a common ancestor and all its descendants (i.e., a synapomorphy). This oral cavity is formed by the invagination of the ectoderm layer opposite to the blastopore of the gastrula.

5 0
3 years ago
In what ways are conjugation and transformation similar and in what ways are they different?
Kobotan [32]
Conjugation and transformation are both kinds of horizontal gene transfer that allow a cell to receive and recombine external DNA. Conjugation involves physical contact between two bacteria using a pilus, through which a copy of plasmid DNA is transferred from the donor (F+) cell to the recipient (F-) cell. Transformation, on the other hand, is simple uptake of naked DNA into a recipient cell from the environment. The DNA usually comes from the leftovers of a dead cell.
5 0
4 years ago
Read 2 more answers
what do Greenland and the united states have in common (A they are both located in North America) (B they are both located in th
tatuchka [14]

Answer:

A.  They are both located in North America

Explanation:

A.  Although it is a European country, Greenland is physically a part of North America.

B is not correct because, while it borders the Pacific Ocean on the West Coast, The US is not in the Pacific Ocean.  Greenland lies between the North Atlantic and Arctic Oceans.

C is not correct because the United States is not an island.

D is not correct because neither one is its own contintent.

7 0
2 years ago
Where do hurricanes most always start?
Vesna [10]
A) over tropical oceans
3 0
3 years ago
What happens if a population is in hardy-weinberg equilibrium apex?
Murrr4er [49]
I think a relative frequency of alleles or genetic variation will remain unchanged for generations. For example if there is a 1 percent genetic variability in an organism of first generation, then the genetic variability in an organism of second generation will also be approximately 1 percent. There will not be a rapid increase in genetic variations. Mutation will not occur or if occur then it will be at the rate of equilibrium. 
7 0
4 years ago
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