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andreyandreev [35.5K]
3 years ago
7

What is she trying to do with the earthworm?

Biology
1 answer:
Gekata [30.6K]3 years ago
4 0
Enrich the soil with nutrients
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Help please , whoever answer I’ll list you as brainlist
Sedbober [7]
I think it’s B. I think this cause meiosis is the cell multiplying
5 0
4 years ago
Clinical manifestations of hypocalcemia include which of the following? (Select all that apply.) Positive Trousseau sign Positiv
kumpel [21]

Answer:

Positive Trousseau sign

Positive Chvostek sign

Hyperactive reflexes.

Muscle twitching, Paresthesias

When the blood conce

Explanation:

When the blood ca+ concentration falls below  the standard of 4.4-4.5mg/dL,that is below 4.4mg/dL the clinical condition is called hypocalcemia. It is caused by hypothyroidism,due to  malfunction of the parathyroid gland.

Generally, Ca+ is needed for contraction of muscles by causing the fusion of the vesicles containing neurotransmitters to the presynaptic membrane for the passage of neuro transmitters  to fuse with the receptors on the sarcolemma to initiate  muscular contractions by opening of ligand gated Na+. It also interact with the ligand gated  sodium ion channels

Generally,Ca+ inhibits depolarization of ligand gated Na+ channels. Thus blocks the opening of these channels and therefore the rate of excitability.Therefore, If the is low serum levels of Ca+,There is increased in the threshold of depolarization because more ligand gated Na+ channels are opened,Thus their is increased excitability of nerves and muscles fibres therefore in the  clinical manifestations listed above.

It can be treated with infusion of Ca+ into the blood.

7 0
3 years ago
A male sustains a crushing injury to his foot. After weeks of care, he begins to notice that he cannot bend the little toe on hi
kap26 [50]

Answer:

d. Atrophy of the flexor digiti minimi.

Explanation:

The logical diangosis would be d. Atrophy of the flexor digiti minimi.

Flexor digiti minimi is a hypothenar muscle of that is used when we flex our little toe of the foot.Present at the metacarpophalangeal joint. When the foot is in anatomical position, it is lateral to the abductor digiti minimi. it is homologous to digiti minimi in the hands.

Hence, Atrophy of the flexor digiti minimi is necessary.

6 0
3 years ago
How do vaccinations work to provide immunity? and What body system regulates blood glucose levels? (For a Biology exam)
blsea [12.9K]

Answer:

it trains the body immunity towards certain diseases

Explanation:

first of all we humans have two types of wbc cells phagocytes & lymphocytes. phagocytes produces pseudopodia which is like cytoplasm that traps or catches bacteria or viruses. lymphocytes produces chemical antibodies which destroy the viruses or bacteria by attaching to the virus and burst it out. Now when u get vaccinated u train those wbc cells for future viruses and hepl them to make antibodies to defend the body.

The blood glucose gets regulated by production of insulin in pancreas to maintain proper amount of glucose in the body

8 0
3 years ago
Every tangible product is made up of what
Trava [24]
Every tanglible product is made up of Matter
6 0
3 years ago
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