Question 2 Juanita learns that gray tree frogs and green tree frogs both live in the southern United States. However, the two types of frogs
have different coloring. The gray tree frogs live in forests, and they blend in with the bark on the trees. The green tree frogs are
green and blend in with the tall reeds and grasses of the wetland areas. Natural selection helps the gray tree frogs in the forests
and the green tree frogs in the wetlands.
Natural selection is affected by which factors? Choose the three answers that apply.
Select 3 correct answer(s)
variation
mechanism
reproduction
evolution
overproduction
competition
Answers is variation. Overproduction. Competition

Which entry is in the wrong position in the table?

Food contains a sugar called ( ), which is broken down in a process called cellular ( ). this process uses ( ) to break down food molecules and provide energy for cells. fill in the parentheses

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a.one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b.one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c.one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.