Which nutrient source doesn’t directly provide energy?
a. carbohydrates
b. fats
c. proteins
d. vitamins

Unsaturated fatty acids that have been changed to saturated fatty acids are called

Which organism is the producer in this food web? 7th grade question. a) arthropods b) birds c) fungi d) plants

If a set of instructions that determines all of the charactersitics of an organism is comparedto a book,and a chromosme is compared to chaper in the book,then what might be compared to a paragraph in the book?