The __________ is the male sexual structure that produces sperm in plants
a. antheridium
b. archegonium
c. stoma
d. sporangium
e. strobilus
A
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Sensory receptors respond to changes in the environment called ________
Fill in the blank(s) with correct word
In a __________, water or some nutrient moves from an environmental reservoir, through organisms,
then back to the environment. Fill in the blank(s) with the appropriate word(s).
Which of the following statements about childbirth is false?
A. Babies are usually born head first with the face pointing upward. B. The placenta is expelled as a result of muscular contractions of the uterus. C. The baby goes through a series of movements to facilitate its passage through the pelvis. D. Caesarian sections involve the removal of the baby through an incision in the abdomen and uterus. E. None of the answer options is false.
Generally, the energy for pumping protons outside of a plant cell comes most directly from
a. sunlight. b. starch. c. ATP. d. diffusion. e. glucose.