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Komok [63]
4 years ago
9

When a kidney is cut lengthwise, three distinct regions become apparent. the outer region is light in color, while the deeper "m

iddle" region is darker reddish-brown. the inner deepest region is flat and tube-like?
Biology
1 answer:
Brrunno [24]4 years ago
7 0
In the cross-section of a kidney, there are three main regions that become apparent. The outer region is called the "renal cortex", this is where the capillaries are mainly located. The deeper and darker region, that looks like small pyramids arranged in a semicircle is called the "renal medulla", where the filtering of the blood takes place. The flat, tube-like structure is called the "renal pelvis".
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The beetles that died were unable to avoid or detoxify the chemical and were thus killed by nerve poison insecticides.

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learn more about nerve poison insecticides here: brainly.com/question/20164269

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Who discovered the relationship between a planet's orbital
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It’s C. Johannes Kepler
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A group of students decided to carry out an Investigation to find out how enzyme
emmainna [20.7K]

Answer:

See the answer below

Explanation:

Enzymes are biological catalysts and are quite temperature specific. They operate optimally within a certain range of temperature. At lower temperatures, their activities decrease and they become inactive at extremely low temperatures. At higher temperatures, their activities are initially promoted but as temperatures get higher, their activities become zero due to the fact that they become denatured.

A. <em>The optimum temperature for amylase activity is 37</em>^oC<em>, hence, when the student had the first test tube at this temperature, the rate of reaction of the enzyme is optimal. The maximum amount of starch would be broken down into maltose.</em>

B.<em> At 0 degrees, the enzyme would become inactive and the rate of reaction becomes minimal or even zero due to the inactivity of the enzyme. At 60 degrees, the rate of reaction also becomes zero because the enzyme would have been denatured by the high temperature.</em>

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Why might genetically engineering a crop to be herbicide resistant result in producing weeds that are herbicide resistant?
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D.) The weeds will become tolerant to the herbicide through repeated exposure.

7 0
4 years ago
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Meiosis reduces chromosome number and rearranges genetic information. Explain how the reduction and rearrangement are accomplish
Alisiya [41]

Answer:

Explanation:

Meiosis is a form of cell division that occurs in the sex cells of organisms. It ensures the reduction of a diploid cell to an haploid cell to allow for the formation of a diploid zygote after fertilization (contribution of both parents haploid sex cells to give a diploid zygote). Thus, this process is very essential and important.

The reduction is accomplished by 2 divisions after the duplication of chromosomes

- first division: separation of homologous pairs of chromosomes (this reduces the total in half)

- second division: separation of sister chromatids of a chromosome.

The rearrangement in meiosis occurs by crossing over/genetic recombination.

This is the exchange of genetic material between homologous pairs of chromosome bringing about a rearrangement and genetic variation

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