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Rufina [12.5K]
2 years ago
11

Who knows how to do this

Biology
1 answer:
MaRussiya [10]2 years ago
7 0

Answer: I think it's true if not False

Explanation: Just a guess :)

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List the five classes of antibody heavy chains and provide one function for each.
Lesechka [4]

Answer:

IgM, IgA, IgE, IgD and IgG

Explanation:

IgM functions in the initial response to offence.

IgA is important for protection of mucus membranes such as in saliva, sweat, tears and gastric fluid.

IgE is active during allergic reactions and defense against infections.

IgD is found on the surface of lymphocytes and is activated upon contact with antigens.

IgG forms part of the secondary response to antigen and is also responsible for newborn protection.

8 0
3 years ago
What is the female genitals?
Ivanshal [37]
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When acetylcholine binds to receptors at the motor end plate, the end plate membrane becames:__________a. repolarized. b. more p
sladkih [1.3K]

Answer:

d. more permeable to sodium ions.

Explanation:

The binding of Acetylcholine  with the receptors at  motor end plate facilitate   membrane permeability to sodium ions therefore  opening of voltage gated channels for sodium ions.

Sodium ions diffused into the synapse of post synaptic neuron at the neuromuscular junction.

If  the  stimulus is up to threshold levels; more chemical(neurotransmitter) gated sodium channels opens, and sodium ions move into the  synapse to depolarize the membrane with  reversal of charges to generate action potential.

The continuous  binding of Acetycholine , leads to permanent opening of sodium ions,and over excitation from depolarization.  Acetycholinesterase enzymes breakdown Acetycholine to choline  and Acetyl Co -A. These are recycle back to Acetycholiine

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3 years ago
Study this diagram of a flowering tree's life cycle. What is the error in the diagram? stage 1 stage 2 Life Cycle of a Tree stag
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C is the answer took the test on edge
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Examine the following diagrams. Columns I and II contain rock layers A, B, C, D, E and F. Both columns were taken from the same
irga5000 [103]
The Answer is C) C & D
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