Which is a basic method of cell-to-cell communication? a. mechanical signals b. nerve and blood-transported signals c. cytoplasmic transfer of signals d. diffused chemical signals e. contact-dependent signals?

Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

In a village where the proportion of individuals who are susceptible to malaria is .70 and population is at hardy-weinberg equilibrium what population is heterozygous hba/hbs