Cross-pollination is a form of reproduction in plants. In this method, pollen, which contains a plant's sperm cells, are transferred to the pistils of another plant, which contain its egg cells. Is this an example of sexual or asexual reproduction? Explain.

Suppose you are estimating the size of a blue crab population. what is the population size if the number marked in the first catch is 40, the total number in the second catch is 200, and the number marked in the second catch is 50?

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

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what