When food is abundant , the cellular slime mold secretes cAMP into the environment to signal the
formation of a multicellular slug-shaped colony.
__________________ Indicate whether the statement is true or false.
F, scarce
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Which of the following are examples of associative learning? (Check all that apply.)
_____ classical conditioning _____ cognition _____ imprinting _____ operant conditioning _____ Pavlovian conditioning
Although bacteria lack membrane-bound organelles, such as chloroplasts and mitochondria, they can still perform the
functions of these organelles by localizing certain metabolic enzymes on: a. ribosomes. b. the cell wall. c. the plasma membrane. d. the nuclear membranes. e. the endoplasmic reticulum.
Homologous structures, such as arms, wings, and fins, are constructed from the same basic bones and are adapted to locomotion in different environments. Which idea do such structures support?
a) inheritance of acquired traits b) descent with modification c) tendency toward perfection d) artificial selection
When Mendel crossed short (tt) pea plants with short (tt) pea plants the offspring
a) were all tall. b) were a mix of tall and short. c) were nonexistent. d) None of the answers are correct. e) were all short.