Which of the following is a nonmembranous organelle?
A) nucleolus
B) Golgi apparatus
C) microvilli
D) centriole
E) All of the answers are correct.
D) centriole
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Dietary minerals are organic molecules
Indicate whether the statement is true or false
The stimulus that directly triggers release of ANP is
A. increased saltiness in the cerebrospinal fluid bathing the hypothalamus of the brain. B. increased stretch of the heart atria. C. decreased pressure detected by baroreceptors in the aorta and carotid arteries. D. increased saltiness of tubular fluid in the proximal convoluted tubule.
Flexion of the head (when both side muscles constrict), are accomplished by which of the following?
a) Sternocleidomastoid b) Erector Spinae c) Splenius Muscle d) both a and d
The spheroidal stage of early prenatal development with about 16 to 64 cells is called a(n) ________
A) zygote B) morula C) blastomere D) embryo E) blastocyst