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lianna [129]
3 years ago
14

Science Help would be appreciated its a practice question and i would like to LEARN not get the answer given to me so please exp

lain

Biology
1 answer:
boyakko [2]3 years ago
3 0

Answer:

Stimulus is something that causes a reaction, especially interest, excitement or energy. An example of stimulus is a shiny object for a baby. An example of stimulus is an influx of cash into the economy that is designed to help the economy to gain momentum or energy.

Explanation:

in physiology, a stimulus (plural stimuli or stimuluses) is a detectable change in the physical or chemical structure of an organism's internal or external environment. The ability of an organism or organ to detect external stimuli, so that an appropriate reaction can be made, is called sensitivity.

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Which of the following hormones is mispaired with its target organ? a. TSH— thyroid b. FSH— gonads c. ACTH— adrenal cortex d. LH
Nikolay [14]

Answer:

d. LH— kidney

Explanation:

Target organ is the specific organ on which the hormone or drug or any substance preferentially acts.

The target organ of TSH is the thyroid gland.

ACTH is secreted by the corticotropes of anterior pituitary gland. Target tissue for the hormone is adrenal cortex.

Gonadotropic hormones - These are the hormones that acts on the gonads which are testes in case of the male and ovaries in case of the females.

FSH and Luteinizing hormone (LH) are both secreted by regulated by Anterior Pituitary gland. The target tissue of both FSH and LH in males are the sertoli cells within the testes and in the female the granulosa cells of the ovary.

<u>Hence option D is not correctly matched.</u>

4 0
3 years ago
During which phase of meiosis does crossing over of chromosomes occur?
Semenov [28]

Answer: it happens in prophase 1 of meiosis

Explanation:

Prophase 1 is characterized by the lining of homologous chromosomes, these are called tetrad.

7 0
3 years ago
Which of these items does not protect against invaders in the nonspecific
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C. Pus

Explanation:

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3 years ago
Suppose a dominant allele (N) codes for a big nose and a recessive allele (n) codes for a small nose. Imagine that an organism r
Crank
From the information given, we can determine that the organism's genotype is:

Nn (heterozygous dominant, aka one dominant allele and one recessive one)

Phenotype refers to how the genotype manifests in the organism, and since a dominant allele overrides the recessive one, the phenotype must be 'Big Nose' for this organism.

6 0
3 years ago
Which of the following components of the skin is innermost or farthest from the surface of the skin
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Skin is made of 3 layers
the top Layer that is exposed to air is the epydermis
the middle layer is the dermis
the lowest and largest layer is the HYPODERMIS.  This is the innermost and farthest from the surface of the skin
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