An eye with which of the following conditions does not need a corrective lens to focus the image?
A) Emmetropia
B) Hyperopia
C) Astigmatism
D) Myopia
E) Presbyopia
A
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Which steroid is secreted by the adrenal cortex to increase reabsorption of sodium ions?
A. Antidiuretic hormone B. Aldosterone C. Adrenaline D. Angiotensin
Which target organ receives dual innervation?
A) small intestine B) kidney C) sweat glands D) coronary blood vessels
Answer the following statements true (T) or false (F)
1. The correct sequence of development is zygote, blastocyst, and morula. 2. The energy needed for the early development of the zygote is supplied by the ovum that was fertilized. 3. The yolk sac is an important food supply for the growing fetus. 4. In humans, one function of the yolk sac is to assist in the production of blood cells. 5. The amnion is the bridge between the mother and baby wherein food and oxygen are exchanged for carbon dioxide and waste products.
Because of the presence of tight junctions, passage of materials across an epithelial barrier must take place between the cells, not through them
Indicate whether the statement is true or false