What organism causes red tide when present in large numbers

All living organisms on earth grow, maintain homeostasis, and undergo cell division. Prior to cell division, cells must undergo DNA synthesis to ensure an accurate copy of DNA is distributed to each daughter cells.

What is a niche? As in related to biology?

Radioactive dating involves determining which of the following? Half-life decay Index fossils Depth of layers Geologic time

At the time of Mendel's pea plant experiments, no one knew how organisms formed gametes. As Mendel studied the inheritance of two different characters, he wondered how the alleles for the two characters segregated into gametes.

T/F: The light dependent reaction reactants are sunlight and water.

Scientists have debated the evolution of three life forms: reptiles, birds and dinosaurs. After many years of reviewing fossil records scientists proposed the evolutionary relationship seen above in the cladogram.

The PNS is divided into several subsystems. What two subsystems form the first major division of the PNS? sensory and motor somatic and autonomic parasympathetic and sympathetic CNS and brain

Consider the model of the food chain. Imagine there is a herbicide poison spill and all the grass is killed. How will this influence the food chain model? A) The grasshoppers will die out. B) All of the consumers will decrease.

A mutation in a dna strand is least likely to affect the cell when the mutation:

What macromolecule has the function of providing structure and catalyzing reactions (as enzymes) ?