Answer:
it b or d
Explanation:
that is the most important for scientistes to study
b tells what can be in the fossill or find in the fossill
so i think it b
Chloroplast contains the chlorophyll necessary for photosynthesis
Answer:
Describe the features that characterized the earliest animals and when they appeared on earth
Explain the significance of the Cambrian period for animal evolution and the changes in animal diversity that took place during that time
Describe some of the unresolved questions surrounding the Cambrian explosion
Discuss the implications of mass animal extinctions that have occurred in evolutionary history
Answer:
Binomial Naming System
Explanation:
Scientists use a two-name system called a Binomial Naming System. Scientists name animals and plants using the system that describes the genus and species of the organism. The first word is the genus and the second is the species. The first word is capitalized and the second is not.