Which of the following premises about evolution by natural selection is false?
Organisms usually produce many more offspring than the environment can support.
Natural selection is always operating in ecosystems.
Hereditary differences between organisms can be passed on to their offspring.
Organisms can alter their genes to adapt to their environment.
Answers: 2
Biology, 22.06.2019 04:00
What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.
Answers: 3
Biology, 22.06.2019 09:40
Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.
Answers: 1
Which of the following premises about evolution by natural selection is false?
Organisms usually pr...
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