Why are all cells semipermeable? A. They allow ALL nutriendlryto pass.
B.
They allow some substances to pass.
C.
The membrane requires nutrients to live.
D. They allow some substances to enter, but they prevent any substance from leaving.

Most scientific questions are based on opinions. hypotheses. observations. experimental data.

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

Many plants can reproduce asexually. which of these is an example of asexual reproduction in a plant? a. pine cones forming on a tree b. cross-pollination in a tomato c. roots sprouting from a potato d. night-blooming jasmine flowers