Help me with d please

Describe pasteur’s results and how they disprove spontaneous generation.

How does the study of genetic disorders such as pku biologists understand normal alleles?

Which of the following is an example of competition a. the leaves of a tree prevent a small shrub from getting sunlight. three species of birds feed a different heights in the same tree. b. three species of birds feed at different heights in the same tree c. zebra and giraffe’s feed on different grassland plants d. cats living in two different homes eat the same brand of cat food.