When does an ovum finish meiosis?

While in a secondary follicle

While in a primary follicle

During fertilization

During implantation

Answer and Explanation

The Correct Answer is C

A. While in a secondary follicle: The ovum completes meiosis only after fertilization, not while in a secondary follicle.

B. While in a primary follicle: The ovum is arrested in prophase I of meiosis while in a primary follicle. Meiosis is not completed until fertilization.

C. During fertilization: The ovum completes meiosis II during fertilization, which is when the second meiotic division is completed.

D. During implantation: Meiosis is not completed during implantation. It is completed at fertilization.

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Correct Answer is True

Explanation

ADH is secreted by the posterior pituitary gland, not the kidneys. The kidneys respond to ADH by conserving water and concentrating urine, but they do not produce or secrete ADH.

A. surfactant B. CO2 accumulating in the infant's blood C. prostaglandins D. an increased O2 level in the infant's new environment

Correct Answer is B

Explanation

A. Surfactant reduces surface tension in the alveoli, aiding in lung expansion, but it does not directly stimulate breathing.

B. CO2 accumulating in the infant's blood: The accumulation of CO2 in the infant's blood is a significant stimulus for the first breath after birth. High levels of CO2 trigger the infant's respiratory centers to start breathing.

C. Prostaglandins are involved in labor and delivery but do not directly stimulate breathing in the newborn.

D. An increased O2 level in the infant's new environment: Increased O2 levels do not directly stimulate breathing; rather, the accumulation of CO2 is the primary stimulus.

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When does an ovum finish meiosis?

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Naxlex Comprehensive Predictor Exams

The kidneys secrete ADH in response to dehydration.

Correct Answer is True

Explanation

During birth, an infant is normally stimulated to breathe by_________________.

Correct Answer is B

Explanation

Water output is largely controlled by varying

Where does an embryo usually attach to its mother?

Where is the greatest volume of water in the body?

The large intestine absorbs water, fats, and salts.

What are the major chemical buffer systems of the body?

The ______________is the gonad analogous to ovary?

Glycolysis and aerobic respiration collectively produce up to ___________ ATP per glucose, whereas anaerobic fermentation produces __________________.

Which of the following nutrients is absorbed by the lacteals of the small intestine?