Obsidian's glassy texture indicates that it formed

a) slowly, deeply below earths surface

b) slowly, on earths surface

c) quickly, deep below earths surface

d) quickly, on earths surface

What we use in everyday life will metamorphic rocks?

Trichoplax adhaerens (tp) is the only living species in the phylum placozoa. individuals are about 1 mm wide and only 27 μm high, are irregularly shaped, and consist of a total of about 2,000 cells, which are diploid (2n = 12).

Which of the following best describes the structural relationship between genes, chromosomes and DNA? A. Genes consists of two long strands of chromosomes, and each of these two strands consists of molecules called DNA. B.

Which component of the heart's conduction system is considered to be the heart's pacemaker?

Are you concerned about the threat of zoonotic diseases? Why or why not?

Which of the following is one effect storm waves have on a beach?

What is the process known as in which there is a change in one form such as a tadpole into a frog?

Why is regualtion of the cell cycle important?

An object of the same mass has three different weights at diffrent times. Which statement is possible

Skeletal muscle is covered, surrounded and protected by various layers of connective tissue. Which layer of connective tissue would surround a bundle of muscle fibers (muscle cells) ?