Through which of the following processes is carbon returned to the atmosphere? (there may be more than one choice to select) a-respiration b-photosynnthesis c-burning of fossil fuels d-decomposition of organic waste

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?