What are the embryonic cells that differentiate into muscle fibers?
A) chondroblasts
B) osteoblasts
C) myoblasts
D) erythrocytes
C
Explanation:
A) Chondroblasts differentiate into chondrocytes.
B) Osteoblasts are immature bone cells.
D) Erythrocytes are red blood cells.
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When does an ovum finish meiosis?
A. During fertilization B. During implantation C. While in a secondary follicle D. While in a primary follicle E. While in a tertiary follicle
Which statement regarding endocrine glands is incorrect?
a. They produce hormones. b. They secrete their products into the blood. c. They are comprised of epithelial tissue. d. They are all controlled by the nervous system. e. They are ductless.
A neuron conducting an impulse from the stomach wall to the CNS would be classified as a(n) ________ neuron.
A. autonomic motor B. somatic sensory C. somatic motor D. visceral sensory
Which structures are fingerlike projections that greatly increase the absorbing surface of cells?
A) stereocilia B) microvilli C) cilia D) flagella