In order to contract, muscle fibers need a. carbon dioxide
c. energy
b. wastes
d. water

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Did you know that a blue wales tongue weighs more than an elephant?

When mendel crossed a true-breeding short plant with a true-breeding tall plant all the offspring were tall. which term describes the gene for tallnes?