BIOLOGY HIGH SCHOOL

Dark spots on the photosphere are known asa. the corona.
b. solar wind.
c. sunspots.
d. the chromosphere. user: which type of electromagnetic radiation cannot be focused?
a. gamma rays
b. ultraviolet
c. infrared
d. x-rays

Answers

Answer 1
Answer: the darkspots on the photosphere are known as : C. sunspots this phenomenon happened because reduced surface temperature cause a concentration of magnetic fluc. The type of electromagnetic radiation that cannot be focused is : A. gamma rays gamam rays caused the electric fluctuation in the field to be much faster than the electron distribution, making it unable to be focused

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What kind of cell or cells were used to make Dolly?a. body cell only
c. egg cell and sperm cell
b. egg cell only
d. body cell and egg cell

Answers

Well Dolly the sheep was a clone, so she would have been reproduced using somatic (body) cells and not gametes.

Answer:

it was a cloned sheep

Explanation:

A low secretion of luteinizing hormone (LH) in the normal male adult would cause A. shrinkage of the anterior pituitary gland
B. decreased testosterone secretion
C. excessive beard growth
D. increased spermatogenesis

Answers

Answer:

A low secretion of luteinizing hormone(LH) in the normal male adult would cause B. decreased testosterone secretion.

Explanation:

For males the normal range is  1.24 -7.8 IU/L. If LH levels are below the normal range it may indicate a pituitary gland problem. Their pituitary gland may not be making enough LH which may lead to low testosterone.

Hypogonadism is a testicular disorder associated with low testosterone. Low testosterone levels can cause a variety of problems including diminished muscle mass & decreased sex drive as well as decrease in the physical as well as mental energy.

Final answer:

Luteinizing Hormone (LH) in males stimulates the production of testosterone. If LH secretion is low, it would result in decreased secretion of testosterone.

Explanation:

The secretion of Luteinizing Hormone (LH) plays a significant role in the male reproductive system. A low secretion of LH in a normal adult male most likely impacts the production of testosterone because LH stimulates the testes to produce this hormone. Therefore, a decrease in LH secretion would logically lead to a decreased secretion of testosterone (Option B). This decrease in testosterone can further lead to a reduction in sex drive, decreased muscle mass, and other sexual and physical changes.

Learn more about Luteinizing Hormone (LH) here:

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Which of the following is an example of epithelial tissue?A) the brachialis muscle
B) insulating fat
C) the outer lining of the parotid gland
D) hyaline cartilage covering bone

Answers

the one that is an example of epithelial tissue is : C. the outer lining of the parotid gland
the epithelial tissue lined up the surfaces and blood cavities all throughout our body and help it in the secretion and selective absorption process.
All glands that exist within out body are made up with epithelial cells.

Answer:

the one that is an example of epithelial tissue is : C

Explanation:

5. Which of the following sequences is an example of a point mutation of the DNA sequence -A-A-G-T-G-C-? -A-A-A-T-G-C-
-A-A-G-U-G-C
-G-T-A-G-A-A-C-
-A-A-G-G-T-C-

Answers

-A-A-A-T-G-C-  because only one base pair is altered by the mutation

Which of the following is not an example of a caught in or caught between hazard?

Answers

Running over worker with a dump truck which is over speeding is not an example of caught between hazard and caught in.

Caught between hazard or caught in is termed as a situation whereby a person is being compressed or squeezed or crushed between some two objects.
On of the thing that is not an example of a caught in or caught between hazard is : running over a worker with a speeding dump truck

Caught in or caught between hazard is a situation in which a person was being squeezed, compressed, or crushed between two objects. 

Young animals approaching maturity might do which of the following to find mates or establish new territories?A. Exponential growth

B. Logistic growth

C. Emigration

D. Immigration

Answers

Answer: C. Emigration  

Explanation:

Young animals approaching maturity might do emigration, to find mates or to establish new territories. Emigration can be define as the migration or departure of individuals from their native land to the new land. The organisms usually find a suitable location where resources such as food, water and mates are available for copulation and reproducing offsprings. The increase in the population of the emigrant organisms help it to maintain their own territories against the competing members of the same population.

A and B are true of whole populations but not individuals and they are not something that young animals can "do" - we reject these options.

C. Yes- this means that they leave the territory of their parents and search for new territories: this is the correct answer.
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