What are some changes that can occur in ecosystems

9. How can the location of a fossil reveal its age? Explain Ayour answer.

What would happen if DNA was not replicated prior to cell division?

Which of the following is the last stage of mitosis? a. anaphase b. prophase c. telophase d. metaphase

Earth's second atmosphere (atmosphere ii) was produced primarily by which process?

Which property is best to use when determining the strength of an ionic bond in a solid Lattice energy Conductivity Hardness Solubility

What do cells need to do between divisions to make sure that a full set of dna gets passed on to each daughter cell?

True or false: The central nervous system allows us to sense the environment

Which of the following statements is false regarding root hairs? a. they are outgrowths of endodermal cells c. they increase the surface area of the root b. they are outgrowths of epidermal cells d. they absorb water and nutrients

Why is it critical to divide the chromosome number in half?

The amino acid proline is one of the three amino acids that watson describes as having "special properties". what is special about proline?