A polydactyl cat mates with a cat with 18 toes. The entire litter of kittens has 21-25 toes. What is the genotype of all the kittens in this litter

Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation

What best explains the inability for life to exist in earth early atmosphere

Why do we perceive objects as retaining their brightness under different lighting levels?