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Ber [7]
3 years ago
15

Please help i am giving brainliest

Biology
2 answers:
DochEvi [55]3 years ago
5 0
I’m guessing a.brain
yan [13]3 years ago
3 0

Answer:

a.Brain

Explanation:

Hypothalamus: The hypothalamus  is in the lower central part of the brain. It links the endocrine system and nervous system. Nerve cells in the hypothalamus make chemicals that control the release of hormones secreted from the pituitary gland.

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Myasthenia gravis is an autoimmune disease in which the immune system gradually destroys the receptors for acetylcholine at the
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<h2>A drug that inhibits acetylcholinesterase.</h2>

Explanation:

  • Acetylcholine esterase (AChE) inhibitors are viewed as the essential treatment of Myasthenia Gravis (MG).  
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7 0
3 years ago
What is the definition of sodium potassium pump
Stells [14]

sodium-potassium pump. n. The enzyme-based mechanism that maintains correct cellular concentrations of sodium and potassium ions by removing excess ions from inside a cell and replacing them with ions from outside the cell.

6 0
3 years ago
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The reason that there are Okazaki fragments during DNA replication is ultimately because:
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Answer:

B) Polymerases can only synthesize in the 5' to 3' direction

Explanation:

The leading strand's directionality is 3' to 5', so polymerase has no problem with replicating this one. But the lagging strand has the opposite directionality, so the polymerase must work in the opposite direction of the replication fork.In consequence, the replication process undergoes periodic breaks, and the enzymes have to stop and start again while helicase separates both strands, resulting in the polymerization of okazaki fragments.

5 0
3 years ago
Why did Gregor Mendel use peas in his experiments?
Brilliant_brown [7]

Answer:

He used peas because they are self pollinating,they grow fast,and they have many traits

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3 years ago
Fish first appeared: a) after the "Age of the Dinosaurs" during the Mesozoic Era. b) during the Ordovician Period of the Paleozo
Sergeu [11.5K]

Answer:

during the Cambrian Period of the Paleozoic Era.

Explanation:

The Paleozoic is the earliest era (of three) of the Phanerozoic Eon and is composed of six geologic periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian (in that order from earliest to the latest). Fish first appeared about 530 million years ago during the Cambrian explosion.

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3 years ago
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