Human reproduction, development, and biology basics

Notes

Chlamydia is a common STD that can be treated by appropriate antibiotics.: a) True The cure for HIV is: e) not in existence yet. A liver-damaging disease that is more likely to be contracted from sexual contact than HIV is: b) HBV. Which of the following STDs is the result of a bacterial infection?: c) chlamydia Asparagus is a dioecious plant, and all commercial stalks are female.: b) False The two-stage life cycle in plants evolved as an adaptation to life on land.: a) True Which of the following statement is true about the life cycle of flowering plants?: e) All of the answer choices are true. Which of the following is part of the male portion of the flower?: a) filament A sperm nucleus combines with one polar nucleus to form the endosperm.: b) False The sac that surrounds the fetus and usually ruptures just before childbirth is the: d) amnion. The human blastocyst: b) contains a fluid-filled central cavity. The presence of the same homeotic genes in a wide range of organisms indicates that: a) these genes evolved early in the history of life. The placenta develops from: c) both fetal and maternal tissue. A failure of the cells in the ectoderm to differentiate correctly would mos...