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Marysya12 [62]
3 years ago
11

The correct answer to number 25 is 3 ! Why is it correct ? Explain why please !!

Biology
1 answer:
klemol [59]3 years ago
3 0

(1) is not correct because if they were identical twins they would be the same sex. (2) is not a valid reason. (4) is not correct. Thus, (3) is the correct option. The answer also corresponds to option (1) and why it's incorrect. If they were identical twins, they would not be both a female and male...

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Name and describe how at least 1 biotic factor can contribute to changes in gene frequency over
Feliz [49]

Answer:

Change in food source.

Explanation:

If there is a change in food source, then the organism will have to adapt to that change. For example, with Darwin's Theory on the finches on the Galapagos Islands. There were many different varieties from different size to different beaks. This was because of changes on food sources and they adapted to obtain them more.

7 0
2 years ago
Diego is conducting an experiment to investigate how temperature affects chemical change. He has three pieces of cheese that he
valkas [14]

The piece of cheese in the refrigerator had the least amount of chemical change.

  • Moulding occurs on substances which are warm and moist
  • Mold thrives in warm and humid places
  • In refrigerators, the environment is cool and dry
  • This environment hinders the growth of mold
  • The bacteria and fungi require optimum temperatures to flourish, which is not present in a refrigerator
  • The cheese placed outside and on the counter will grow mold as those environments do not arrest the growth of mold
  • Refrigeration ensures that food is not spoilt

Therefore, the least amount of chemical change takes place on the cheese placed in the refrigerator.

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5 0
1 year ago
What structures do plants need that animals do not need? Why?
Alina [70]

Answer: a cell wall

Explanation: a cell wall is a barrier that protects the plant cell. Animal cells do not need this becuase they have a cell membrane which also protects the cell.

5 0
3 years ago
The nurse is caring for a client with a burn injury and suspects atelectasis and hypoxia. which age-related changes should the n
Elena-2011 [213]
I would most likely associate this with either pneumonia (acute) or if patient is older some form of COPD; possibly Chronic Bronchitis.
5 0
2 years ago
Read 2 more answers
In an experiment, a scientist studied the effect of increased levels of calcium had on a sugar levels in the blood. The scientis
ololo11 [35]

Answer:

If the calcium levels in blood increases, then there is increase in blood glucose level.

Explanation:

Calcium in blood plays a vital role of homeostasis in regards to level of secretion of insulin. If the calcium level is altered, the homeostasis mechanism is hampered. Several  researches have shown that alteration of serum calcium level affects the metabolism process of carbohydrate and makes the person vulnerable to risks of diabetes mellitus and associated complications. Hence during calcium supplementation, the person's blood glucose level must be considered.

7 0
3 years ago
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