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notsponge [240]
2 years ago
7

How was the smallpox epidemic similar to COV-19?

Biology
1 answer:
lisov135 [29]2 years ago
7 0

Answer: Both smallpox and COV 19 are novel diseases in their respective timelines. Both spread by inhaling infected droplets, albeit COV 19 is transmitted through aerosols and surfaces touched by infected people as well.

Explanation:

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When this organelle malfunctions, the release of food energy into the cell would be
Mkey [24]

Answer:

d

Explanation:

Mitochondria is the power house of the cell. It's where aerobic respiration happens and release of energy as ATP happens.

6 0
3 years ago
Determine which of the following characteristics are environmental, not inherited.
kykrilka [37]

Answer:

I. Weight

Explanation:

Weight is environmental and not inherited

The food we eat can change our weight; it can cause weight gain...

4 0
3 years ago
A woman who is a carrier for hemophilia marries a hemophiliac man. What will be their children’s possible phenotypes?
Morgarella [4.7K]

Answer:

Hemophilia is a sex-linked recessive disorder in which a person's blood do not clots and he can bleed to death even after minor injuries because blood will keep running due to a small cut.

It is a recessive trait which means that even if one normal gene is present along with Hemophiliac gene, the person will not have the disease and he will be the carrier.

Question: What will be their children’s possible phenotypes?

If a woman who is a carrier for hemophilia marries a hemophiliac man, their genotypes can be denotes as :

Here H, indicate normal gene and small h indicate defected (hemophilia) gene.

Parents:                      XHXh                   X           XhY

Offspring:                   XHXh : XHY:  XhXh:  XhY

Phenotype of offspring:

XHXh:  The child will be daughter and normal (25 % chances)

XHY:     The child will be son and normal (25 % chances)

XhXh:   The child will be girl and Hemophiliac (25 % chances)

XhY:      The child will be son and Hemophiliac (25 % chances)

Hope it helps!

5 0
3 years ago
The N-H bond in ammonia is polar because
Masteriza [31]

Answer:

E: nitrogen is much more electronegative than hydrogen.

Explanation:

in paulings scale hydrogen is 2.1 and nitrogen is 3...so

nitrogen is much more electronegative than hydrogen.

3 0
3 years ago
Read 2 more answers
Which environmental factor could lead to a decrease in genetic variation in a population of tuna?
jeyben [28]

Answer:

The environmental factor that could lead to a decrease in genetic variation in a tuna population is an increase in pollution (second option).

Explanation:

There is a correlation between genetic variability and environmental pollution, the latter being a factor that impacts negatively on the variability of a specific population.

The concept of pollution stress not only implies a low rate of reproduction, but it is also a factor that prevents genetic exchange with other populations, which is a factor that makes the genetic variability decrease in a population.

For these reasons an increase in pollution implies a decrease in genetic variability in a tuna population.

  • <em>Other options, such as </em><u><em>an increase in food availability</em></u><em>, a</em><u><em> decrease in tuna fishing </em></u><em> or </em><u><em>a decrease in tuna predators</em></u><em>, are environmental factors that contribute to increased genetic variability.</em>

3 0
3 years ago
Read 2 more answers
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