Please help me, I promise I'll give . 1. How many orders of magnitude exist between an ant which is 3mm long and a human hair which has an diameter of 100 micrometers.

2. Calculate the percentage by mass of carbon in butane, an alkane containing four atoms.

Ar(H) = 1, Ar(C) = 12

During the process of meiosis, special cells called gametes are formed. gametes only have half the number of chromosomes that the other cells in the body have. what form of reproduction do organisms that produce gametes use?

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.

All eukaryotic cells contain small bodies called