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Anarel [89]
3 years ago
8

What is meant by Koch's postulates ?

Biology
1 answer:
nydimaria [60]3 years ago
3 0

Answer: four criteria to establish a causative relationship between a microbe and a diseases

Explanation:

1- "Bacteria must be present in every case of diseases"

2- "Bacteria must be isolated from the host with the diseases and grown in pure culture"

3- "The specific diseases must be reproduced when a pure culture of bacteria is inoculated into a healthy susceptible host"

4-"Bacteria must be recovered from the experimentally infected host"

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Karima is color-blind. Which of the following best explains how this will affect her children?
nataly862011 [7]
C but it's still not exactly correct, they would just be definite carriers of the colour blind trait but only the girls are able to obtain the gene
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3 years ago
The somatic cell of an individual has a diploid number of 16. What’s the chromatid number of the cell during metaphase? Isn’t it
Feliz [49]

Answer:

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Explanation:

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3 0
3 years ago
Which feature of Earth is part of the geosphere?<br> O air<br> O fish<br> O rocks<br> Oglaciers
Ipatiy [6.2K]

Answer:

Rocks

Explanation:

The geosphere includes the rocks and minerals on Earth – from the molten rock and heavy metals in the deep interior of the planet to the sand on beaches and peaks of mountains. The geosphere also includes the non-living parts of soils and the skeletons of animals that may become fossilized over geologic time.

7 0
3 years ago
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The graph shows the change in temperature of a sample of water in a closed system as thermal
Sliva [168]

Answer:

When you heat ice, its temperature rises, but as soon as the ice starts to melt, the temperature stays constant until all the ice has melted.

3 0
3 years ago
In horses, black coat (b) is dominant over brown coat (b), and being a trotter (t) is dominant over being a pacer (t). a black h
Tomtit [17]
In order for a recessive trait to be apparent in an organism, the organism must receive a copy of the allele for that trait from both parents. 
Let the:
black coat: B
brown coat: b
Trotter: T
pacer: t

The offspring received both of the recessive alleles because it demonstrates the recessive phenotypes. Therefore, they genotype of the offspring is:
bbtt

The black horse that is a pacer that can produce this offspring will be:
Bbtt

Therefore, the brown horse's genotype must be:
bbTt

The offspring will receive b from both parents and t from both parents.
5 0
3 years ago
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