Ridge push is the result of A: convergence at a plate boundary
B: Rising mantle at a plate boundary
C: plates sliding pas each other other at a boundary

In sexual reproducing animals once fertilization of the egg takes place, the exists as a single cell until cell division begins. a) egg b) larva c) sperm d) zygote

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass

The relationship between intron and exon