The ecological niche of a species refers to:
a. habitat
b. mode of reproduction and food habits
c. role in the community
d. position of the organism in the food web
e. behavior in relation to other species in the community

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

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brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation: