What is the function of the mitochondria

Which pair of chromosomes determines sex in humans? a.15th b.1st c.23rd

Paleontologists have found plant fossils deep within the layers of the north polar region. these leaf fossils have been labeled as to the rock layers they were found in, with the lower numbers being layers close to the earth's surface and higher numbers representing deeper layers. according to the numbers of these four leaf fossils, what might you infer?

Which describes a major benefit that bioengineered technology has provided has provided to society? a. it’s application include the development of a new plastics for airplanes b. it’s application include the development of pacemakers and artificial limbs. c. it’s application include larger capacity for handheld music devices. d. it’s application include more energy-efficient fossil fuels.