How many tissue layers does the uterus have?

A. One

B. Two

C. Three

D. Four

Answer Explanation:

The uterus has three layers. The inner layer is called the endometrium. The middle layer is called the myometrium. The outer layer of the uterus is called the serosa or perimetrium.

Therefore, the Correct Answer is C.

Q #1: A chemistry experiment is performed to determine the effect of a nonvolatile solute on the boiling point of water. Three trials are performed in which 10 mg, 20 mg, and 30 mg of salt are added to 500 mL of distilled water. Each solution is heated on a hot plate, and the elevated boiling points are recorded. Determine the dependent and independent variables in this question.

A. The independent variable is the amount of salt, and the dependent variable is the temperature at which the water boils.

B. The independent variable is the amount of water, and the dependent variable is the temperature at which the water boils.

C. The independent variable is the temperature at which the water boils, and the dependent variable is the amount of salt.

D. The Independent variable is the amount of salt, and the dependent variable is the amount of water.

Answer Explanation

In a scientific experiment, the dependent variable is the condition that is being tested and measured. The independent variable is the condition that is being changed or controlled. In this example, the amount of salt is varied, and the boiling point of water is measured. Therefore, the independent variable is the amount of salt, and the dependent variable is the temperature at which the water bolls.
Q #2: Where is the gastrocnemius vein in relation to the femoral vein?

A. Lateral

B. Distal

C. Superior

D. Ventral

Answer Explanation

The gastrocnemius vein is found in the calf. The femoral vein is found in the proximal anterior thighs/pelvis.

Since the gastrocnemius vein is found below the femoral vein it is distal or inferior to the femoral vessel.
Q #3: When animals eat, insulin is released from the pancreas, stimulating glucose uptake by the liver. When glucose levels drop, the pancreas reduces insulin release. This is an example of which mechanism for maintaining homeostasis?

A. Negative feedback

B. Positive feedback

C. Stress response

D. Parasympathetic regulation

Answer Explanation

Maintaining homeostasis means that conditions are kept stable and relatively constant. Negative feedback is a mechanism used to reverse or minimize changes in a system. In this example, negative feedback is used to keep the body's glucose and insulin levels stable. Positive feedback (B) is a mechanism that Increases changes in a system. A stress response (C) describes the body's reaction to threats or pressures. Parasympathetic regulation (D) refers to activities of the nervous system, including slowing the heart rate and boosting Intestinal activity.

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How many tissue layers does the uterus have?

More Questions on TEAS 7 Science

Answer Explanation

Q #2: Where is the gastrocnemius vein in relation to the femoral vein?

Answer Explanation

Q #3: When animals eat, insulin is released from the pancreas, stimulating glucose uptake by the liver. When glucose levels drop, the pancreas reduces insulin release. This is an example of which mechanism for maintaining homeostasis?

Answer Explanation

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