Explain what a FOOD PYRAMID is. Use 2 examples from Bill Nye’s Apple Tree explanation.

Flock x flock y flock z total pieces of food eaten (from previous page) 147 93 60 food percentage* % % % simulated number of birds in flock for 3rd generation** * divide each flock's total pieces of food by 300, the total number of pieces of food eaten. ** multiply the food percentage for each flock by the total number of birds (30).

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

Which type of respiration takes place when there is no oxygen present? a. anaerobic b. mitochondrial c. cellular d. aerobica. anaerobic