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Artemon [7]
3 years ago
9

Which two structures are found ONLY in plant cells?

Biology
1 answer:
Naya [18.7K]3 years ago
5 0


The best answer is  C.

Plant cells are surrounded by a cell wall and have chloroplasts whereas animal cell do not.

The cell wall is  a covering that is rigid whose main purpose is to protect the cell and give structural support as well shape to the plant cell. The equivalent of a cell wall in animal cell is the cell membrane, which has distinct differences from the plant  cell wall.

Chloroplasts are plant  cell organelles which carry out photosynthesis by which plants make their own food. These are absent from animal cells because animals do not make their own food, they ingest it from external sources.



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11. Punnett squares can also be used to predict genotypes of the parents. A guinea pig with short hair is crossed
emmainna [20.7K]

Answer:

Ss × ss

Explanation:

This question involves a single gene coding for hair length in guinea pigs. The alleles for short hair (S) is dominant over that of long hair (s).

According to this question, a guinea pig with short hair (S_) is crossed to one that has long hair (ss) to produce offsprings that have 44 short hair and 46 long hair. This number of offsprings produced indicate a ratio of 1:1, which can only be produced if the short haired guinea pig is heterozygous i.e. Ss.

Therefore, the genotype of the parents are Ss (short hair) and ss (long hair) i.e. Ss × ss. This combination will produce offsprings with the following proportion: Ss (1) : ss (1).

4 0
3 years ago
S
Zolol [24]

our thyroid glands plays a main role in a human body. It secretes thyroxine and calcitonin. In which thyroxine help in growth and cellular metabolism and calcitonin helps to regulates calcium concentration in blood . If thyroid gland stops working then there is low level of calcium in our blood, which leads to mental and hormonal disorder. In this way a person's blood calcium level would be affected if his/her thyroid gland stops working.

5 0
2 years ago
During photosynthesis, light energy is converted to the energy in chemical bonds. What also happens according to the predictions
BigorU [14]

Answer:

chemical energy is converted into light

Explanation:

The process by which green plants and some other organisms use sunlight to say to synthesize foods from carbon dioxide and water. It transforms light energy into chemical energy during photosynthesis.

3 0
3 years ago
If the inner lining of the air sacs is neither thin nor highly vascularized, then what can be inferred about the ai
MArishka [77]
If the inner lining of the air sacs neither thin nor highly vascularized, then it can be inferred that AIR SACS ARE CANNOT BE THE SITES OF GASEOUS EXCHANGE BETWEEN AIR AND BLOOD. Air sacs are generally lined with mucus and surrounded with blood capillaries.
In case of birds, air sacs play an important role in respiratory system.
4 0
3 years ago
What happens when light goes through a prism
Vladimir [108]

Answer:

The light bends

Explanation:

As a result the different colors that make up white light become separated and into 6 other colors

7 0
3 years ago
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