At one point in history, all organisms were classified as either animals or plants. Which question could be asked in order to show the problems with
this type of model?
A. Can subsystems further classify the plants and animals?
B. How many types animals exist in the world?
C. How is an animal classified

D. Are bacteria considered plants or animals

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

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.