Which of the following is an example of a species changing over time.
choose all answers that are correct.

a.

a gardener notices a new kind of squash growing after he only planted seeds from his previous squash plants.

b.

a rabbit’s ears are bigger than a mouse’s ears.

c.

some weeds have become resistant to a chemical designed to kill them.

d.

the purple-spotted butterflies in your collection have more spots than the purple-spotted butterflies your grandfather collected when he was a child.

e.

a giraffe's neck is longer than a deer's neck.

the right side of the picture going down is:

polymerase

protein

transport vesicle

modified protein

the left side of the picture going down is:

dna helix

single-stranded rna

endoplasmic reticulum

ribosome

golgi apparatus

protein released from vesicle

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many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.