What type of cellular respiration were your hand muscles using before squeezing the tennis ball and and what type of cellular respiration were your hand muscles using once you started to get sore?

What is called the "building block" of life?

Describe how alleles and genes are related

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.