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Wittaler [7]
2 years ago
13

Close examination of an organ reveals a lining of several layers of cells. The layers do not contain any blood vessels and one s

urface of the cells is open to the internal cavity of the organ. This tissue is probably
Biology
1 answer:
Reptile [31]2 years ago
3 0

Answer:

Epithelium

Explanation:

Epithelium are tissue massage found mostly in the skin and serve as protective covering for the internal and external parts of the body.

A major characteristic of the epithelium is that its layers do not contain any blood vessels such as the artery or vein. The surface of the cells is also usually open to the internal cavity of the organ.

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Species 1 is described as 2n = 8 and has chromosome composition BBDDEEHH.
egoroff_w [7]

Answer:

a. Trisomic

Explanation:

A trisomy is a genomic phenomenon whereby a particular chromosome is present in three copies. In this case, the trisomy involves the chromosome P, being this species a tetraploid with 5 pairs of homologous chromosomes (2n = 10). In humans, the trisomy for chromosome 21 is one of the most common types of aneuploidies that lead to the Down syndrome by producing alterations in gene expression patterns that are associated with changes in the phenotype

7 0
2 years ago
The point at which the optic nerves meet and then split is termed the optic:
dimulka [17.4K]
The point at which the optic nerves meet and then split is termed the optic area
7 0
2 years ago
Which energy source did you rank as the worst option for the rescue team
stellarik [79]

Answer:

The worst option of energy source for the rescue team would be - nuclear, hydroelectric, combustion and fuel burning all are worst option fro max to less worst.

Explanation:

The best option for the energy source for the rescue team would be hand canker, lever as it is mechanical energy generator does not require anything but hand movement to generate energy to charge equipment and easily carry  anywhere.

Solar, wind energy are also helpful for rescue team but nuclear energy, hydropower, fuel burning energy source are risky, not handy and costly options.

Thus, the worst option are-  nuclear, hydroelectric, combustion and fuel burning energy source.

5 0
2 years ago
4. The reason that organisms cannot produce populations of unlimited size is that
katovenus [111]

The reason that organisms cannot produce populations of unlimited size is that

A. interactions between organisms are unchanging

B. there is no carrying capacity on Earth

C. species rarely compete with one another

<u>D. the resources of Earth are finite</u>

5 0
2 years ago
Read 2 more answers
Juan picks up a steel utensil and immediately drops it because it’s extremely hot. How does the reflex arc work to protect Juan
GenaCL600 [577]

Answer:

1. Motor, 2. spinal cord to muscle

Explanation:

motor neurons are the second part of a reflex arc that actually causes the movement associated with the reflex arc.

4 0
2 years ago
Read 2 more answers
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