Which were the first tetrapods to move to land?
A) Reptiles
B) Ray-finned fishes
C) Monotremes
D) Hagfishes
E) Amphibians
E
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The digestion and utilization of this material creates the greatest need for nitrogenous waste secretion by the kidneys.
A. collagen B. amylose C. oleic acid D. glucose E. lactose
Megaspores develop in the ____
a. gametophyte b. ovary c. ovule d. pollen grain e. zygote
Which of the following represents the proper order of events in embryonic development?
A. fertilization; gastrulation; neurulation; cleavage; organogenesis B. fertilization; gastrulation; cleavage; neurulation; organogenesis C. fertilization; cleavage; gastrulation; neurulation; organogenesis D. fertilization; gastrulation; cleavage; organogenesis; neurulation E. fertilization; cleavage; gastrulation; organogenesis; neurulation
Since chemoreceptors are found in arthropods, crustaceans, vertebrates and all other animals it is believed that chemoreception is the most primitive sense.
Answer the following statement true (T) or false (F)