Conception is the moment a sperm meets an egg resulting in pregnancy.
a. true
b. false

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior

Diabetes is often suspected when glucose shows up in urine tests. use the model to explain how glucose could be present in urine. why do you think this symptom is especially concerning for young people?