Heather released ladybugs in her garden to consume insect pests. This is an example of A. an abiotic control of insect pests. B. a chemical control of insect pests. C. the use of biocides to control insect pests. D. a biological control of insect pests.

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

b is the correct answer

lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.