What is the basic function of catabolic operons like the lac operon?
a. to find an alternative energy source when glucose is absent or not present in sufficient amounts
b. to find an alternative source of carbon when glucose is absent or not present in sufficient amounts
c. to find an alternative source of carbon regardless of the amount of glucose present

Which best compares habitat and niche? o niche is a place in which organisms live, and habitat is the way in which an organism fits into its habitat.o habitat is a place in which organisms live, and niche is the way in which an organism fits into its habitat.habitat is a group of organisms that live in an area, and niche is a specific species that lives in that areao niche is a group of organisms that live in an area, and habitat is a specific species that lives in that area.

Acommon kind of mechanical weathering is called

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?