Haploid numbers of chromosomes are usually found in what part of an organism?

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?

Which describes a grizzly bear’s habitat?