When minerals have become hardened into rock forming a fossil, the fossil is called a(n) print fossil
original-remains fossil
petrified fossil
carbonized fossil

Contrast how pollination is different among gymnosperms and angiosperms.

Answers to mastering biology drag the labels to their appropriate locations to complete the punnett squares for morgan's reciprocal cross. drag blue labels onto the blue targets to indicate the genotypes of the parents and offspring. drag pink labels onto the pink targets to indicate the genetic makeup of the gametes (sperm and egg). labels can be used once, more than once, or not at all. hints

The polio virus can cause skeletal muscle paralysis by destroying neuron cell bodies. what area of the spinal cord is destroyed