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Bumek [7]
3 years ago
10

Which of the following must occur for speciation to happen?

Biology
1 answer:
Vadim26 [7]3 years ago
5 0
Speciation will only occur if there was life in the area before like a bunrt down forest or soemthing similar
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Which scientists won the Nobel Prize for publishing the first description of the structure of DNA?
gladu [14]
The scientists that won the Nobel Prize for publishing the first description of the structure of DNA were Watson & Crick.

8 0
3 years ago
Pseudomonas aeruginosa is a non-fermenting GNR, it grows on EMB. Which of the following would be true (Circle none, one or many)
Dafna11 [192]

Answer:

The correct answer is a. Pseudomonas aeruginosa would be colorless on EMB

Explanation:

Pseudomonas aeruginosa is a gram-positive bacteria that is rod shape. It shows a few nutritional requirements and can even adapt to those conditions in which the other bacteria can be adapt.

It is non-fermentative bacteria so it does not ferment lactose and other carbohydrates. As EMB agar contains lactose and some dye, therefore, the lactose fermenting bacteria ferment the lactose and show good growth and color change.

But as Pseudomonas aeruginosa is a non-fermentative bacteria it does not ferment lactose and does not show any color and forms a colorless colony. Therefore the correct answer is a.

7 0
3 years ago
What is an important characteristic of waxes, and why is this valuable to living things?
marishachu [46]
Waxes are considered to be important to living things, because waxes are a type of lipid. Lipids are energy stored within our body, somewhat like a storage of energy. Lipids, consists of other substances, such as oil, fats and the likes. Lipids store energy, for the cells to consume whenever they need it.
3 0
3 years ago
BEST ANSWER GETS BRAINLIEST!!!!!!1
Alex73 [517]

Answer:

The suspect might be guilty, but more information is needed from other parts of the investigation.

Explanation:

Due process states innocent until proven guilty. Having an 80 percent chance of deception is not solid proof of anything. It does, however, bring more speculation to the table that this person is indeed guilty, but because there is no actual proof, the investigators must find more information on the matter.

7 0
3 years ago
A mom, heterozygous for type B blood, has a baby with type AB blood, what possible blood types could the baby's father have?
EastWind [94]

Answer:

A

AB

Explanation:

This question involves blood type, which can either be blood type A, B, AB or O in humans. Alleles A (iA) and B (iB) are co-dominant but dominant over allele O (i).

According to this question, a mom who is heterozygous for type B blood i.e. genotype iBi, has a baby with type AB blood. Since the mother contributed the "B" allele, it means that the father contributed the A allele. Only a father with genotype: iAi or iAiA (type A) or iAiB (type AB) can produce such allele.

4 0
3 years ago
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