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eduard
2 years ago
11

Reproductive system brain pop Worksheet Help please?

Biology
1 answer:
faltersainse [42]2 years ago
5 0
Their is the answer

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Who discovered penicillin and how ?
luda_lava [24]

Answer:

In 1928, at St. Mary's Hospital, London, Alexander Fleming discovered penicillin. This discovery led to the introduction of antibiotics that greatly reduced the number of deaths from infection.

The discovery of penicillin was actually a mistake!

Fleming obtained an extract from the mold, naming its active agent penicillin. He determined that penicillin had an antibacterial effect on staphylococci and other gram-positive pathogens.

Explanation:

3 0
3 years ago
A couple has three children, two without sickle cell anemia and one with sickle cell anemia. The mother has sickle cell anemia a
bezimeni [28]

Answer:

Explanation:

The sickle cell allele is recessive. Hence, in order for any child of the couple to have sickle cell anemia, such a child will have to inherit an affected allele each from the two parents. This means that both the father and the mother must have affected alleles in their genotypes. In other words, two sickle cell alleles are required for the abnormality to manifest.

Let us assume that the sickle cell allele is represented by S and the normal allele is represented by A.

Now, it is established that the mother has sickle cell anemia, her genotype would be SS. The father does not have sickle cell, his genotype can either be AA or AS.

Assuming the genotype of the father is AA:

          SS   x   AA

      AS   AS   AS   AS

<em>All the children would be normal in this case.</em>

Assuming that the genotype of the father is AS

           SS    x    AS

      AS   SS   AS   SS

<em>50% of the children would have sickle cell while the remaining 50% would be normal.</em>

<u>Therefore, in order to produce children with sickle cell, the father has to be AS, otherwise, he has to be AA.</u>

<u><em /></u>

6 0
3 years ago
What trait is common for animals in the Order Carnivora?
stellarik [79]

Answer:

i would say claws, larger sharp teeth, and some my have camouflage in order to hunt better.

7 0
3 years ago
Read 2 more answers
Unlike T lymphocytes, B lymphocytes
suter [353]

The correct answer is (c) discover antigens in body fluids.

B lymphocytes act as antigen presenting cells that recognizes and displays the antigen to the white blood cells. These cells process the antigens that are present in body fluids. Professional antigen presenting cells includes B-lymphocytes, macrophages, dendritic cells, etc.





4 0
3 years ago
PLEASE HELP meeeeeeeeeee
juin [17]

Answer:

the picture is blurry

Explanation:

i cant see it fully

3 0
3 years ago
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