Q: Carrying multiple offspring at the same time increases the risk of some
Carrying multiple offspring at the same time increases the risk of some birth defects. FIGURE 42.16 shows the results of Yiwei Tang’s study of birth defects r...
See AnswerQ: Carrying multiple offspring at the same time increases the risk of some
Carrying multiple offspring at the same time increases the risk of some birth defects. FIGURE 42.16 shows the results of Yiwei Tang’s study of birth defects r...
See AnswerQ: In humans, fertilization typically occurs in the ______. a.
In humans, fertilization typically occurs in the ______. a. vagina b. uterus c. cervix d. oviduct
See AnswerQ: The ________, a fluid-filled sac, surrounds and protects a
The ________, a fluid-filled sac, surrounds and protects a human embryo and keeps it from drying out. a. amnion b. allantois c. yolk sac d. chorion
See AnswerQ: The placenta consists of ______. a. embryonic tissue b
The placenta consists of ______. a. embryonic tissue b. maternal tissue c. paternal tissue d. a combination of a and b
See AnswerQ: During the fetal period, ______. a. gastrulation ends
During the fetal period, ______. a. gastrulation ends b. somites form c. a tail forms d. limb movements begin
See AnswerQ: Human milk contains __________. a. sugars b. lysozyme
Human milk contains __________. a. sugars b. lysozyme c. antibodies d. all of the above
See AnswerQ: Warm air ______ and it holds _______ water than cold air.
Warm air ______ and it holds _______ water than cold air. a. sinks; less b. rises; less c. sinks; more d. rises; more
See AnswerQ: Pharyngeal arches of a human embryo will later develop into ______.
Pharyngeal arches of a human embryo will later develop into ______. a. gills b. lungs c. structures of the head and neck
See AnswerQ: _____ removes webs between developing digits. a. Gastrulation
_____ removes webs between developing digits. a. Gastrulation b. Cleavage c. Apoptosis d. Implantation
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