Mendel selected pea plants for his experiments because ____
a. the offspring are infertile
b. others were also using pea plants for their experiments and this would allow data sharing
c. male and female flowers are on separate plants
d. they can be self-fertilized or artificially fertilized by hand
e. he was told by his superior that only pea plants were suitable for experimentation
ANSWER: d
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On the back of your skull you can feel a small bump, below which is an opening where the spinal cord enters the skull. The location of this opening toward the bottom of the skull is significant in evolutionary biology for what reason?
A) It allowed for the hominin brain to grow much larger than other primates. B) It provided greater protection for the spinal cord. C) It occurred as a result of the change to a bipedal stance. D) This change was necessary for the increase in size from prosimian forms to anthropoid forms.
The core of every virus particle always contains
A) DNA and RNA B) Enzymes C) DNA D) Either DNA or RNA E) Capsomers
Amyloplasts are responsible for the colors of ripening fruits or autumn leaves
Indicate whether the statement is true or false.
Which of the following structures allows a bacterium to propel itself through its environment?
a. microfilaments b. intermediate filaments c. microvillus d. flagellum e. microtubule