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nydimaria [60]
3 years ago
14

A plant nursery only grew one type of tomato plant. All of their tomato plants died from the same disease. What was most likely

true of the tomato plant population?
a) They had a lot of resistance to disease.
b) They had a few plants that were resistant to the disease.
c) They had too much variation in their genes.
d) They had little variation in their genes.
Biology
1 answer:
Phantasy [73]3 years ago
5 0
The answer is d. <span>They had little variation in their genes. I hope this helps</span>
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Analyze: Cellular respiration involves two phases. The anaerobic phase does not involve oxygen, while the aerobic phase does. Wh
mafiozo [28]

Answer:

The anerobic part takes place in the fluid part of the cytoplasm while the aerobic part takes place in the mitochondria

Explanation:

6 0
3 years ago
The hormone that is primarily involved in the control of bone remodeling is calcitonin.
Ainat [17]

Answer:

The correct answer will be-False

Explanation:

Calcitonin is a hormone produced by the parafollicular cells present in the thyroid gland. The Calcitonin plays an important role in the human body as they reduce the level of phosphate and calcium in the blood.

The calcitonin is produced by the C-cells in response to the amount of the calcium levels in the blood as a high concentration of calcium cause release of calcitonin.

Since the calcitonin is involved in the regulation of calcium of blood and not bones therefore, false is the correct answer.

3 0
3 years ago
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A hypothesis is based on observation and must be ____. Written, testable, without any variables, shared with others
Julli [10]
The answer has to be option B "testable." A hypothesis is a educated guess on what you think is going to happen during a experiment. Also its not going to be option A because a hypothesis doesn't exactly have to be written homeschool students have there instructions on a computer in order to be completed. Its not option C because a  hypothesis has the have its test variables. (independent & dependent variables) Its also not option D because some scientists conduct their experiments by themselves.

Hope this helps! 
6 0
3 years ago
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The color blindness gene is recessive and X linked. It is written as Xb. A woman who is color blind has a son with a man with no
Taya2010 [7]

Answer:

XbY

Explanation:

The gene responsible for colorblindness is written as Xb since it is present on the X chromosome. In humans, sons get their X chromosomes from the mother while inheriting the Y chromosome from the father. In the given cross, the genotype of the colorblind mother would be XbXb (the X-linked recessive traits such as colorblindness are expressed in homozygous conditions in females).

She would transmit one copy of "Xb" to her son. The genotype of the father would be "XY" and he will give "Y chromosome" to the son. Therefore, the genotype of the son would be "XbY".

3 0
3 years ago
A cell’s chromosome contains<br> 1.genes<br> 2.chlorophyll <br> 3.sperm<br> 4.eggs
pshichka [43]
They would contain genes
5 0
3 years ago
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