What is the first step in DNA replication? a
A new strand of DNA is created.
b The DNA helix unwinds like a zipper.
The two strands of DNA rewind into the double
helix.
d
none of the above

Ameadow ecosystem includes many species of grasses and small shrubs, several herbivores, and a few carnivores. a fungus colonizes the meadow and kills most of its vegetation. what is most likely to happen to the populations of herbivores and carnivores in the ecosystem? a. the populations of herbivores and carnivores will increase because there will be less competition for chemical energy. b. the populations of herbivores and carnivores will remain stable because the fungus cannot infect these organisms. c. the populations of herbivores will decrease because of vegetation loss, but the population of carnivores will remain stable. d. the populations of herbivores and carnivores will decline because less chemical energy will be stored in the ecosystem.

Would really appreciate it, i have an idea but not completely sure

Classify the structures as homologous or analogous, depending on their structure and function.