Biology, 30.01.2020 11:44 AutumnJoy12
By cross-breeding a tiger and a lion, a hybrid animal was created, but was infertile. which evolutionary barrier caused the infertile offspring?
a. prezygotic barrier
b. postzygotic barrier
c. behavioral barrier
Answers: 3
Biology, 21.06.2019 14:00
They said i have got a sign of tuberculosis what should i do
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Biology, 22.06.2019 02:30
Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?
Answers: 1
Biology, 22.06.2019 04:00
Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.
Answers: 2
By cross-breeding a tiger and a lion, a hybrid animal was created, but was infertile. which evolutio...
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