Answer:
The answer would be A it connects the endocrine and nervous systems and controls the pituitary gland.
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Explanation:
Protien bonds are what hold the base pairs
Answer:B
Explanation:
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
Answer:
The parent with the genotype Aa BB Cc dd can produce 4 different types of gametes.
Explanation:
<em>The law of independent assortment states that the alleles for a trait separate when gametes are formed. </em>
In the parent genotype Aa BB Cc dd, the allelic pairs with variation present are Aa and Cc. Therefore, the source of variation in the possible combinations during meiosis, largely arises from these 2 allelic pairs.
Independently assorting these pairs, we have ; A, a, B, B, C, c, d, d
The possible combinations therefore are:
A neuron enters hyperpolarization when there's an efflux of the potassium ions and the influx of chlorine ions. This moving out of positively charged cations and moving in of negatively charged anions makes the neuron enter a state of negative membrane potential. If a hyperpolarized neuron is stimulated by an oncomming action potential, it fails to get excited. This is because the neuron has its potassium ion channel inactivated by the negative potential. The potassium ion channel can only be activated when the potassium ions slowly leak inside to neuron to make it enter the state of resting membrane potential.
