Natural Science Exam #2 Random
Why do siblings look different from one another (except identical twins)? - Answer -*Products of meiosis
result in different combinations of alleles from the same genes
*Random combinations of egg and sperm
You put a raisin in a glass of water. After a few hours, you notice that the raisin has swelled. Water has
moved into the raisin by ___________. The water was ____________ to the raisin. - Answer -
osmosis;hypotonic
In primary active transport, a transport protein uses energy from ATP to move molecules from an area
of _________ to an area of ______________ concentration. - Answer -lower;higher
Donkeys and horses can mate in captivity to form a mule which is sterile. Why are donkeys and horses
considered to be different biological species? - Answer -*Donkeys and horses would not interbreed
under natural conditions.
*The mule is sterile and thus an evolutionary dead end.
Daughter cells: - Answer -are identical to the parent cell and diploid
How is Mitosis related to cancer? - Answer -Mitosis out of control can lead to cancer because cancer
cells are produced rapidly until there are millions and millions of them.
Primary producers obtain food from ______________. Primary producers obtain nitrogen from
_______________. - Answer -photosynthesis;soil bacteria
Why do siblings look different from one another (except identical twins)? - Answer -*Products of meiosis
result in different combinations of alleles from the same genes
*Random combinations of egg and sperm
You put a raisin in a glass of water. After a few hours, you notice that the raisin has swelled. Water has
moved into the raisin by ___________. The water was ____________ to the raisin. - Answer -
osmosis;hypotonic
In primary active transport, a transport protein uses energy from ATP to move molecules from an area
of _________ to an area of ______________ concentration. - Answer -lower;higher
Donkeys and horses can mate in captivity to form a mule which is sterile. Why are donkeys and horses
considered to be different biological species? - Answer -*Donkeys and horses would not interbreed
under natural conditions.
*The mule is sterile and thus an evolutionary dead end.
Daughter cells: - Answer -are identical to the parent cell and diploid
How is Mitosis related to cancer? - Answer -Mitosis out of control can lead to cancer because cancer
cells are produced rapidly until there are millions and millions of them.
Primary producers obtain food from ______________. Primary producers obtain nitrogen from
_______________. - Answer -photosynthesis;soil bacteria
