Charlie tested three types of toy cars. He placed the cars on the same starting line on the same inclined plane. He released the three cars at the same time. He measured how far the cars traveled when rolling down the plane, to see which type of car rolled furthest. What is the independent variable in this experiment? A. the ruler used to measure distance

B. grade of inclined plane

C. type of car

D. Charlie

PLEASE ANSWERR

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

In a cross between individuals of a species of tropical fish, all of the male offspring have long tail fins, and none of the females possess the trait. mating two of the f1 fish fails to produce females with the trait. explain the inheritance pattern of the trait.