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vagabundo [1.1K]
4 years ago
12

How are infectious agents transmitted?

Biology
2 answers:
mihalych1998 [28]4 years ago
7 0

Answer:

they are transmitted by one person to another, like kissing, coughing, sneezing, or any physical contact from the infected person to someone who's not.

Katarina [22]4 years ago
3 0

Even tho this isnt my strong suit, i know the answer. Infectious agents are transmitted by physical contact and by airborn particles.

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Why does geographic isolation cause speciation?
zimovet [89]

Answer:

A. It allows two populations to evolve separately.

Explanation:

Geographic isolation is theorized to have catalyzed the formation of new species. Let’s say groups A and B of a bird species get separated by something, and they can’t cross between to interbreed or exchange alleles.

We describe this as no gene flow, which is the opposite of choices C and D. Because of this, they may diverge if given enough time due to the difference in environmental pressures, because they’re now in different environments.

B is incorrect because it doesn’t apply.

3 0
3 years ago
Read 2 more answers
Microarrays allow for a comparison of expression of different genes under different growth conditions. the analysis of global ge
Lady_Fox [76]

Question

Microarrays allow for

•a comparison of expression of different genes under different growth conditions.

• the analysis of global gene expression.

•the hybridization of cDNA (converted from mRNA with DNA affixed to a solid-state support.

• all of the above.

Answer:

• all of the above.

Explanation:

Microarray involves the collection and isolation of genetic samples (DNA) from a sample or tissue.

Microarray is composed of a large number of DNA material that is arrange sequentially for easy identification and use.

Microarray is used to compare the expressions of various types of genes that are growing under different conditions. It can also be used for analysis of genes globally.

5 0
3 years ago
Maple syrup, which comes from the sap of maple trees, is a mixture of water and natural sugar. It's a clear brown liquid. It's h
Nitella [24]
I believe it is a solution, sorry if wrong
4 0
3 years ago
What is the<br>relationship between<br>natural selection and<br>evolution of a<br>species?​
Inga [223]

Answer:

Natural selection results in evolution.

Explanation:

Natural selection is the separation of types of individuals in different environments, like geographical isolation. Due to this, the offspring will soon evolve and create a new species, known as evolution.

5 0
3 years ago
Each red blood cell is shaped as a biconcave disk. This allows it to?
kipiarov [429]

Red blood cell is shaped as a biconcave discs, this shape allows them to squeeze through small capillaries.

The biconcave shape of the cell allows oxygen exchange at a constant rate over the largest possible area. The biconcave shape increases the cell's surface area compared to a flat disk of the same size. The greater surface area makes it easier for gases to move into and out of the red blood cell.

The biconcave shape provides a large surface area compared to the volume of the red blood cell, allowing diffusion to happen efficiently. This shape optimizes the ratio of surface area to volume, facilitating gas exchange. It also enables them to fold up as they move through narrow blood vessels.

To learn more about biconcave discs ,here

brainly.com/question/8193368

#SPJ4

6 0
1 year ago
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