Dr. Suri placed a dog on the scale at the veterinary clinic. Then she recorded a reading of 8 lb. What does this reading mean?
F The dog's mass is equal to 8 lb.
G The dog has an average density of 8 lb/ft3.
H. The volume of the dog is exactly 8 lb.
I. The weight of the dog as measured by the scale is 8 lb.

Match the following items 1. rr 2. rr 3. identical alleles 4. unlike alleles 5. rr ()homozygous, recessive ()homozygous definition ()heterozygous, dominant cell ()heterozygous definition () homozygous, dominant cell

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.

Where are chlorophyll molecules located within the chloroplasts?