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3 years ago

After the ovules are fertilized what happens to the ovary

Biology

1 answer:

3241004551 [841]3 years ago

4 0

Answer:ovary develops into fruits

Explanation: fertilization occur after the fusion of a haploid male and female gametes to give a diploid zygote. The male sperm fuses with the female egg in the ovule to give an embryo. For angiosperms the male sex cell is located in the pollen in the anther which is carried to the stigma where the female sex cell is located either of the same plant or different plant. For gymnosperms the male pollen is found in the cone from where it is then transfer to the female cone. The ovule developed into the seeds after fertilization and the ovary develops into fruits.

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If 32 packed volume units of cells are separated from 46 volume units of plasma from a blood sample, the haematocrit is _______

nordsb [41]

Answer:

If 32 packed volume units of cells are separated from 46 volume units of plasma from a blood sample, the hematocrit is 41,02% percent. The hematocrit value is within the normal range.

Explanation:

Hello!

Hematocrit (or packed cell volume -PCV-)is defined as the percentage of red blood cells (vol%) in a blood sample. One common method of determining it is by centrifuging a heparinized blood sample in a capillary tube at 10 000 RPM for five minutes. This separates the blood sample in two layers, formed elements (RBC and WBC) and Plasma.

The length of the layers is directly measured from the tube and represents the volume of packed cells and plasma. Since the number of white cells is negligible compared to the number of red cells, the formed elements are considered to represent the red blood cells.

The hematocrit can be calculated as the volume of packed cells divided by the total volume of the blood sample.

$\frac{PCV}{TOTAL(pcv+plasma} * 100$

In the question:

$\frac{32}{32+46} * 100$ = $\frac{32}{78} * 100$ = 41,02%

In humans the normal hematocrit range is 40,7% to 50,3% for men and 36,1% to 44,3%. Taking these reference values into consideration, this sample is within the normal range.

I hope you have a SUPER day!

4 0

3 years ago

The type of reproduction by which plants produce offspring from vegetative part is called

Allushta [10]

Others are external fertilization:

a. all of the sperm will fertilize eggs.
b. sperm and egg will be released simultaneously.
c. the number of sperm and eggs produced will be equal.
e. sperm will be protected until they can unite with the eggs.

3 0

3 years ago

How do you think that natural selection was involved in the evolution of the hair-like structures?

Luden [163]

Answer:

maybe it helped people with health and skin care so maybe it inspired them to also use it for hair and it worked I hope this is something that atleast helped you sorry if it seems stu-pid

Explanation:

8 0

3 years ago

Read 2 more answers

Why is it important for scientists to be able to remove DNA from an organism? List 2 reasons.

vekshin1

To make changes to it or to take out some genes of interest

5 0

3 years ago

For plants living in a dry areas, explain a possible conflict between the need to obtain carbon dioxide for photosynthesis and t

ahrayia [7]

Plants living in dry areas face conflict.

EXPLANATION:

Since they live in dry areas they will undergo more transpiration.

If they open stomata during the day there will be excessive loss of water vapor that will result in their death.

Therefore plants living in this area open the stomata during the night to obtain Carbon dioxide.

This checks the loss of water through transpiration and provides the carbon dioxide for photosynthesis.

7 0

2 years ago