The word biology means the study of ____

How do the chromosomes in most cells of an organism, such as the leaf cells of a plant, compare to the chromosomes in its reprod

Lunna [17]

Answer:

Reproductive cells have half the amount of chromosomes than body cells

Explanation:

I think that you are talking about body cells when you say "most cells in an organism." If that is the case, then the reproductive cells, sperm and egg cells, have half the amount of chromosome than body cells.

For example: Human body cells have 46 chromosomes. Human reproductive cells has 23 chromosomes.

In sexual reproduction, each parent gives 1/2 of a full set of chromosomes to create the full set needed for an organism.

8 0

3 years ago

A woman who has sickle cell anemia passes this disease on to her offspring. This means that the mutation for sickle cell anemia

WITCHER [35]

The mutation will occur on the X chromosome. Males are more susceptible to sickle cell amenia because they only carry one X chromosome instead of two when compared to a set of female chromosomes. If a female only has the mutation on one chromosome the disease will not appear. However, when a male recieves the mutation on the X chromosome, the disease would appear, because they only have one X chromosome.

3 0

3 years ago

In regions of the cardiovascular system where there is steady laminar blood flow, the shear stress on cells lining the walls of

Lynna [10]

Answer:

$250$ N/m2

Explanation:

Shear stress on cells lining the walls of the blood vessels is equal to $20$ 20 dyne/cm2

In terms of Newton/square meter, shear stress is equal to

$20*\frac{dyne}{cm^2} (\frac{10^{-5}N}{1 dyne} )*(\frac{1 cm^2}{10^{-4}*m^2} )\\= 2.0$ N/m2

Shear modulus is equal to shear stress divided by shear strain

Thus, shear modulus is equal to

$= \frac{2.0}{0.008} \\= 250$ N/m2

7 0

3 years ago

Which statements about fossils are true? Check all that apply.

saul85 [17]

Answer:

help interpret earth's past

great environmental indicators

created from living things that are buried

help us understand day to day life forms and ancestors

Explanation:

5 0

3 years ago

Read 2 more answers

Technological advances in transportation have come about in response to the depletion of fossil fuels and other negative aspects

kykrilka [37]

Answer:

The correct option is D) These advancements are very expensive and not available to everyone.

Explanation:

Consider the statement A. It states that the new technological advances uses renewable sources of energy. This is a positive aspect as the energy can be renewed and replaced. The corn from which this energy is derived can be produced over and over again. Hence, this is a positive aspect, not a negative aspect.

Consider statement B. This statement tells us that the new technological advances will not result in warming the Earth's atmosphere by greenhouse effect. Hence, it is a positive aspect.

Consider statement C. It states that the new technological advances will lead to lesser pollution. Hence, it is a positive aspect.

Now, consider statement D. It is a drawback because technological advances are too expensive to be used by many people. Hence, it is a negative aspect.

6 0

3 years ago

The word biology means the study of _____.