Which evolutionary adaptations plants succeed and spread on land?
a. vascular tissue and seeds
b. spores and pine cones
c. small size and small seeds
d. cotyledons and nonvascular tissue

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature about 37 degrees celsius (98.6 degrees f)? describe what might happened the temperature decreased by 10 degrees celsius.

The tubes transporting minerals and water upward are called ?

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions