Ventilation in insects involves _ (blank) _ that can enlarge to draw air inside the animal. Select one: a. Lungs b. Gills c. Tracheoles d. Air sacs e. Tracheae

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction

Why has two different alleles for the same trait?

Which organelle plays a role in intracellular digestion?