Which process drives Darwin's theory of evolution? natural selection artificial selection population diversity ecosystem diversity

4. Chymotrypsin is an enzyme known to have broad substrate specificity in vivo. Why is it advantageous for chymotrypsin to have broad substrate specificity whereas in the case of other proteases such broad substrate specificity would be viewed as

What are the receptors for sweet tasting molecules located on the tongue?

Which statement is true about biomes? Biomes don't contain ecosystems. Biomes can have only one ecosystem. Biomes are smaller areas within ecosystems. Biomes are determined by climate zones.

There is no difference between the question and hypothesis steps of scientific theory true or false?

Some harmless flies resemble bees and wasps. What is this mechanism called?

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

In a metabolic pathway, a typical control mechanism is to have: