3. Which gymnosperms are the oldest, tallest plants found in a forest? A. welwitschias
B. ginkgoes
C. cycads
D. conifers

Would really appreciate it, i have an idea but not completely sure

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

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