How do flowering plants reproduce by fertilization if they are immotile?
1)fertilization takes place in their roots.
2)they conjugate with plants nearest them.
3)insects and other organisms carry pollen to other flowers.

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

Which of these is one of the nitrogenous bases in dna? a. proline b. leucine c. glycine d. thymine