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Alborosie
3 years ago
11

Which of the following methods involves counting the number of organisms in a specific area?

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

Answer:

the sampling method because it involves continuing the total of numbers or organism.

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Do the reactions of the electron transport chain occur?
Fofino [41]

Answer: The electron transport chain is a group of proteins found in the inner membrane of the mitochondria of a eukaryotic cell. ... Using electrons, hydrogen ions, NADH, ADP, and oxygen, the electron transport chain is able to make energy in the form of ATP.

3 0
4 years ago
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A woman who is a carrier for colour blindness (X-linked recessive) has children with a man who has normal colour vision. A. What
viva [34]

Answer:

Explanation:

The Genotype of the  woman is XCbXN

The man XNY

Since the allele for the color blindness is carried on one of the X -chromosomes of the  carrier mother, then  the male children will be color blind or carrier deopending on the defective gene they inherited. Since they will receive the defective or normal  allele from the  mothers,but the female will carriers or normal because they will inherit either defective allele or normal allele from the mother,but normal  X allele from the father.

Assuming the colorbind gene was inherited by One of the boys, and the girls take the defective genes

1. XNY vs XCbXN.Then the one of the  boys will be colorblind  and the one of  girls will be carriers. XNXCb, XNXN, XCbY,XNY  50 %

2.If the two boys take the effective genes from the mothers. and none of the girls take the defective alelle

Then the two boys will be colorblind and the girls will be carrries XcbY,XcbY and XNXN XNXN.(normal girls).

The proportions that will be  the females  since the girls can only take the defective allele from one of the normal and defective allele from the mother. Assuming the girls  take the defective allele from the mothers and take normal from the father,they will all  be carriers,since the X of the father is normal.

They can not have a color blind girl.Since the father is normal It takes two colorblind X-chromosome to give a girl.

5 0
3 years ago
Researchers can manipulate the genes of a mouse so that a single gene in a single tissue either produces an inactive protein (a
s2008m [1.1K]

Answer:

1) The genetic changes can lead to a reduction in the capacity of the mice to move glycogen at its branches points and lowers blood glucose levels between meals.

2) Genetic changed can lead to a decrease in the capacity to lower blood glucose due to the knock out of the hexokinase gene leading to elevated levels in the bloodstream.

(c) A knockout of FBPase2 will result in elevated levels of fructose-2,6-bisphosphate in

liver favoring the glycolytic pathway and inhibiting gluconeogenesis by the decrease of fructose 1,6-

bisphosphatase-1 activity

(d) An active FBPase-2 will now favor gluconeogenesis and this inhibits glycolysis. I.e. a decrease in PFK-1 activity while increasing FBPase-1 activity simultaneously.

4 0
3 years ago
Why is the beginning of cultivation regarded as a landmark in the history of human progress.
Digiron [165]

The beginning of cultivation is regarded as a landmark in the history of human progress because it provides opportunities to manage nature and the environment in return to earn their livelihoods.

<h3>What is Cultivation?</h3>

Cultivation may be defined as the process of preparing lands and growing crops by the farmers for the huge human population as well as animals. It is an agricultural practice.

The beginning of cultivation delivers an idea to humans through which they can sustain themselves by earning income. The activity of cultivation was initiated in the Neolithic age. Since then, it creates a lot of opportunities for farmers in order to make their progress.

Therefore, the alteration of foods from food products represents the initiation of cultivation that is considered a landmark in the history of human progress.

To learn more about Cultivation, refer to the link:

brainly.com/question/1188946

#SPJ4

7 0
2 years ago
Where can key concepts, words to know, and lesson goals and objectives be found when determining what to study for a test?
Fynjy0 [20]

b.

Chapter introductions

3 0
4 years ago
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