What is one situation in which population density could have a negative impact on the production of offspring

Im is in a crowd of people at the mall looking for his girlfriend tammy, who was supposed to meet him for dinner. jim realizes tammy is across the room as he catches a whiff of her overpowering perfume, 'paris #6'. which process explains why jim is able to smell the perfume?

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box