Microorganisms, such as bacteria, viruses, protozoa, fungi, or yeast that invade the body are known as

1 answer:

4 0

Pathogens is the answer. Active immunity is the body's continuing to immune and defend against pathogen. A pathogen can be defined in terms of its characteristics to create toxins, enter tissue, colonize, hijack nutrients, and its ability to immunosuppress the host. There are types of pathogens; two of them are bacterial and viral.

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In the male reproductive system, the pituitary hormone _____ stimulates Leydig cells to secrete testosterone, and the pituitary

Katena32 [7]

Answer:

<u>Luteinizing hormone </u>(LH) stimulates Leydig cells to secrete testosterone

<u>Follicle stimulating hormone (FSH)</u> stimulates Sertoli cells to secrete protein and other molecules required for spermatogenesis

Explanation:

Under the influence of gonadotropin-releasing hormone, the anterior pituitary releases luteinizing hormone (LH) and follicle-stimulating hormone (FSH). In males, LH stimulates interstitial cells of testes (Leydig cell) to secrete the hormone testosterone. FSH acts indirectly to stimulate spermatogenesis by causing the release of androgen-binding protein (ABP) from the Sertoli cells. The function of ABP is to maintain the higher concentrations of testosterone to stimulate the final steps of spermatogenesis in the seminiferous tubules.

6 0

3 years ago

Plants and animals are both _____.

kolezko [41]

Plants and animals are both "organisms" or "living organisms" if you prefer.

An organism is basically a group of different organs functioning together (hope this was the easiest way to explain it).

Hope it helped,

Happy study/ homework/ exam!

4 0

4 years ago

Read 2 more answers

A color-blind (X-linked recessive) human with Klinefelter syndrome has parents both of whom have normal color vision. 4a. From w

sineoko [7]

The extra X chromosome is received from mother.

<h3><u>Explanation</u>:</h3>

Klinefelter's syndrome is the condition of chromosomal aberration where the person has an extra X chromosome. This means the genotype of the person is 44+XXY and the total chromosome number is 47. This condition is achieved due to inappropriate meiotic division and one of the sperm or ovum has the an extra X chromosome.

Here both the parents are normal in terms of colour vision. So the father cannot have the gene of colour blindness because if it was present, then father would have been colour blind because he has only one X chromosome per cell. So its present in mother who is heterozygous in terms of colour blind gene. So the extra X chromosome also came from her which made the presence of two defective X chromosomes in the offspring and made it colour blind.

5 0

3 years ago

Which kind of compound increases the hydrogen ion concentration in a solution?

cupoosta [38]

Hi,
I think the answer you are looking for is “acid compound”.

I hope this helps. If you’d like further explanation please let me know. Also, English is not my first language, so I’m sorry for any mistakes.

3 0

3 years ago

Thermus and Deinococcus A. survive in extreme environments.B. are both thermophilic.C. are both radiation resistant.D. both serv

attashe74 [19]

Answer:

Option a, survive in extreme environments

Explanation:

Both Thermus and Deinococcus belong to the group of bacteria that are collectively termed as Deinococcus–Thermus group.

Deinococcus are radiation-resistant vegetative cell as they are able to resist ionising radiation. Also some species of Deinococcus are thermophile.

Thermus are thermophilic bacteria that are able to live in extreme temperature condition and thus are able to tolerate high temperature.

Hence, option A is correct.

3 0

3 years ago