The oldest rocks are on the bottom and the rocks become progressively younger toward the top. explain why this is the case?

What type of mutation in nucleotide 4 would produce the same amino acid?

Is the Monera, the Protista and the Fungi kingdoms heterotrophic or autotrophic

What can species like the coelacanth tell scientists about the past? a. They can tell us what ancient environments might have been like c. They can tell us how many species were in the oceans millions of years ago b.

A glucose molecule is completely broken down in glycolysis and the Krebs cycle, but these two processes yield only a few ATPs.

Since there are many different types of cancer, how Is cancer named?

One of the primary functions of DNA in cells is to A. Serve as a storage firm for unused nucleotides B. Occupy space in the nucleus to keep the nucleus from collapsing C. Copy itself exactly for new cells

What feature do lymphatic vessels share with veins that allows lymph to flow in only one direction?

The negative stain is used to the negative stain is used to determine cell size. visualize endospores. determine flagella arrangement. visualize the outer membrane. determine gram reaction.

The visible part of the ear has the ability to stretch significantly, and then recoil back to its original position. Which protein fiber must be present?

Which cellular process takes place in the ribosome that are bound to the endoplasmic reticulum