What happens when the ciliary muscles of the eye contract? The
lens become more concave
lens become more convex
lens gets a longer focal length
suspensory ligament becomes tight
Correct answer is C
No explanation has been provided for this answer.
The part of the central nervous system that controls unconscious actions in humans is the
cerebellum
cerebrum
spinal cord
optic nerves
Correct answer is C
The three primary roles of the spinal cord are to send motor commands from the brain to the body, send sensory information from the body to the brain, and coordinate reflexes.
The properties of the endocrine system include the following except
secreting hormones
transportation by blood to target organs
having specific effect
releasing secretions into ducts
Correct answer is D
No explanation has been provided for this answer.
The part of the mammalian kidney that stores urine is the
capsule
medulla
pelvis
bladder
Correct answer is D
No explanation has been provided for this answer.
The excretory product of some reptiles, birds, and insects is
urea
urine
ammonia
uric acid
Correct answer is D
No explanation has been provided for this answer.