Which of the following is not true of the lymph vascular system?
1.It delivers fats from the small intestine to the blood.
2.It collects fluids around capillary beds of the circulatory system.
3.It concentrates salts that are secreted by the kidneys.
4.It includes the spleen, thymus and tonsils.
3
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How could you distinguish between a root hair versus a very small root?
A. Root hairs are white, while roots are brown. B. Root hairs are extensions of single cells, while roots are multicellular. C. Root hairs only absorb water, not nutrients like roots. D. Root hairs do not have a cuticle. E. The epidermis of a root hair is thinner than the epidermis of a root.
Which subgroup of mammals raises their young in pouches?
A. Cetaceans B. Monotremes C. Marsupials D. Eutherians
When an action potential arrives at the axonal bulb, ________ channels open in the presynaptic membrane, which causes neurotransmitter to be released into the synaptic cleft
Fill in the blank(s) with correct word
Which mode of reproduction is utilized by most aquatic invertebrates, fish, and amphibians?
A. Asexual reproduction B. Pathenogenesis C. External fertilization D. Internal fertilization E. Hermaphroditism