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Free_Kalibri [48]
2 years ago
6

Which of the following is formed immediately after a sperm cell fertilizes an egg cell?

Biology
1 answer:
yan [13]2 years ago
5 0

Answer: A zygote

Explanation:

a diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum.

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Pavlova-9 [17]
The Use of nitrogen fertilizers near the lake is your answer. 
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What do the tympanic membranes do for the frog?
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A tympanic membrane, (is also called a tympanum), is the circular patch of skin directly behind the frog’s eye that we commonly call an eardrum. It functions much like our’s does.

The tympanum sends sound waves to the middle of the war then to inner ear, which allows a frog to hear both in the air and below water.
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3 years ago
HELP ASAP!! DUE NOW!! WILL MARK AS BRAINLIEST!!
Naily [24]
The answer is: <span><span>has antigens A and B on the red blood cells
</span>
Human blood contains either: 
A antigens (A)
B antigens (B)
A and B antigens together (AB)
none of these antigens (O)

corresponding to the A,<span> B</span>,<span> AB</span>, and O blood types, respectively.

Antigens are molecules that can cause an immune response to be mounted against them in the form of antibodies. Antigen is an abbreviation for 'antibody generator'.

In the case of the ABO blood groups, the antigens are sugars on the red blood cells.

Antibodies are complex proteins made by certain immune cells, and these proteins have the ability to bind foreign material or microbes, which can block their harmful action and label them for quicker elimination.

Example:
When a person has a blood type with a particular antigen (e.g. A), he or she won't produce antibodies against that blood type, so they are safe to receive blood from individuals with similar blood types (won't be considered foreign). They can also receive blood from blood type O donors because they don't have any antigens that would cause an immune response. 

But this person with blood type A, has antibodies against blood type B (to defend oneself from foreign material), so if they were transfused type B blood in this case, they would experience a dangerous immune reaction as the antibodies would bind the B antigens of the B blood type red blood cells.
<span>
Blood type O individuals are universal donors = can donate blood to anyone.

Blood type AB individuals are universal receivers = can receive blood from any group.</span></span>
7 0
3 years ago
_______ is at the size and shape of a pea; produces hormones that stimulate other endocrine glands.
inna [77]

Answer:

The correct answer is hypophysis or pituitary.

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Some hormones released by pituitary that stimulate other endocrine gland are adrenocorticotropic hormone (ACTH) which stimulate the adrenal gland to release cortisol. FSH and LH hormone that stimulate testes and ovary in male and female, Thyroid-stimulating hormone (TSH) which stimulate thyroid gland, etc. Therefore the right answer is pituitary.

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3 years ago
A sperm cell of a moth has 112 chromosomes. how many chromosomes are in the noth's wing cells?​
Advocard [28]
224 chromosomes on the wing cell
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2 years ago
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