The combined genetic information of all members of a particular population forms a <span>gene pool</span>. The answer to your question is B. I hope this is the answer that you are looking for and it comes to your help.
Most plants that grow in a desert environment have the ability to retain water in leaves or paddles ( if cactus ) and have deep roots to collect water that is deep in the ground i hope this helps <span />
Explanation:
Cell Structure
Creatures in kingdom Animalia are all multicellular organisms with eukaryotic cells that have nuclei and organelles. Unlike plants and fungi, animal cells do not have a cell wall. In addition, with the exception of sponges, cells are divided into specialized tissues or organs.
Movement
All Animalia members are mobile at some point in their lives. Motion is achieved through the musculoskeletal system and is one of the factors that allow animals to live in diverse ecosystems including oceans, mountains and deserts. Movement is achieved in various ways including legs, fins and wings.
Food and Respiration
All members of kingdom Animalia are "heterotrophs." They obtain nourishment from other organisms and digest the food internally. In addition, animals utilize aerobic respiration for cellular energy and food breakdown on a molecular level. Oxygen works at a molecular level to complete the metabolic processes necessary to turn fat and sugar into energy for the cells.
Humans have approximately 24,000 genes, but fruit flies are not far behind, with approximately 14,000 genes.