Behaviors which sacrifice reproductive success or even survival can actually increase fitness if they promote the survival and reproduction
of close relatives who share a significant proportion of the same
genes. This is known as

How is an environment able to support different varieties of organisms?

Which organelle breaks down sugar molecules that supply energy to the cell ?

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes