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velikii [3]
3 years ago
6

FREE POINTSSS AND BRAINLIEST just ask me some questions while I do my quiz and ask random questions I don’t care what they are o

r what they say
Biology
2 answers:
sergiy2304 [10]3 years ago
6 0

Answer:

What is 2+2

A-fish

B-4

C-22

D-all the above

Explanation:

bogdanovich [222]3 years ago
3 0

Answer:

Why did the chicken crossed the road

Explanation:

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Which part of the female reproductive system produces ova?
ikadub [295]

The ovary is the part of the female reproductive system that produces ova.

The ovary is an organ located in the female reproductive system that produces female reproductive cells or ova. The ovary is often paired and are firm, smooth and about the size of an almond. The ovaries are held by a membrane next to the uterus on both side of the lower abdomen. When an ovum is produced, it moves into the uterus through the fallopian tube, where it may be fertilized by a sperm. The ovary also secretes various hormones such as estrogen and progesterone that perform major roles in the menstrual cycle and fertility.


5 0
3 years ago
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Based on the direction of the blood flow, through what type of blood vessel is blood flowing in the diagram? #19
kifflom [539]

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D) a vein

Explanation:

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3 years ago
While you are running and approaching your first mile, oxidation of free fatty acids is taking place at the cellular level, allo
grin007 [14]

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B) aerobic metabolism

(Aerobic metabolism is the way your body creates energy through the combustion of carbohydrates, amino acids, and fats in the presence of oxygen. Combustion means burning, which is why this is called burning sugars, fats, and proteins for energy.)

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3 years ago
_The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of
Hoochie [10]

Complete question:

The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of the postsynaptic membrane to Na and K

  • True
  • False

Answer:

TRUE

Explanation:

The Acetylcholine neurotransmitter is released from the presynaptic cell by the process of exocytosis.

Once the molecule is in the intercellular space, it moves forward the postsynaptic membrane to join its receptor in the motor plate.

Once the joining has occurred, the receptor acquires a channel shape allowing the ion transference that will make possible the modification of the action potential. Ions traffic will consist of the pass of sodium and calcium to the interior of the cell and potassium to the exterior. Quantitatively, the interchange Na-K is the most significant.

K+ follows a concentration gradient, while Na+ follows an electrochemical gradient. The interchange results in an increase of positive charges in the interior of the muscular cell.

Whenever there is a sufficient number of Acetylcholine receptors are active, the depolarization threshold of the motor endplate is exceeded. This activates an action potential that extends to the rest of the muscle membrane.

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Which of these is an abiotic factor of an aquarium system
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Water
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hope this helps!
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