What makes up the female reproductive whorl of a flower?
a. the carpels
b. the receptacles
c. the stamens
d. the petals
Ans: a. the carpels
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Answer the following statements true (T) or false (F)
1. The ecological footprint of an average Egyptian is greater than that of an average American. 2. Random dispersion is rare compared to clumped dispersion. 3. Humans are iteroparous. 4. Demography is the study of how births and deaths change population sizes over time.
The principle of independent assortment is not true for:a
incomplete dominance. b. mutations. c. heterozygotes. d. homozygotes. e. linked genes
Some internally fertilized eggs develop and hatch outside the mother's body. What is this developmental strategy called?
A. oviparity B. marsupial development C. placental development D. vivipary
A drop to pH 4.0 in the duodenum would primarily stimulate the release of ________.
A. gastrin B. insulin C. secretin D. pepsin E. cholecystokinin