What is the average age of menarche (first menstruation) ?

Which of the following organisms is not found on the savanna? a. serval b. pangolin c. capybara d. prairie chickens

Gene duplications provide an explanation for the origin of gene families. gene duplications provide an explanation for the origin of gene families. a. True b. False

The term geologist user for underground water is

What impact might the increasing worldwide use of the internet have on the final step of the experimental method?

What type of cell retains the ability to divide repeatedly into any type of cell, thus allowing the body to repair and grow?

What is the most efficient enzyme known that can catalyze hydrogen?

The process where sediments turn into a sedimentary rock through compaction or cementation is called

Muscles in animals are often found in pairs, because A. muscles need to be able to both push and pull. B. muscles can only push. C. muscles can only produce a force as they relax. D. muscles can only pull.

Precursor metabolites are A. always amino acids B. always sugars C. catabolites that are useful for anabolism D. anabolites that are useful for catabolism

During replication the strands of a double stranded dna molecule separate when the bonds are broken between their paired bases. explain why, in terms of the genetic code, is it important that the molecule separate between the bases