The fact that most of us have five lumbar vertebrae, but some people have six and some have four, is an example of ________ variation among organisms.
A. reductionist
B. anatomical
C. holistic
D. physiological
E. cellular
Answer: B
Anatomy & Physiology
You might also like to view...
Which structure caps the head of a mature sperm and enables the sperm to penetrate an egg?
A. Axoneme B. Acrosome C. Nucleus D. Mitochondria E. Flagellum
Anatomy & Physiology
Presynaptic neurons release neurotransmitters by ______________
A) active transport. B) exocytosis. C) diffusion. D) endocytosis.
Anatomy & Physiology
Which muscle helps create a facial expression of horror and disgust?
A) zygomaticus minor B) zygomaticus major C) platysma D) risorius
Anatomy & Physiology
Which type of reactions are involved in ATP production?
A. Oxidation-reduction reactions B. Combustion reactions C. Single replacement reactions D. Neutralization reactions
Anatomy & Physiology