These abnormalities occur in the serotonin system which reduces and/or inhibits control in their movement. This disruption of the neurotransmitter causes them to act maladaptively. Thank you for your question. Please don't hesitate to ask in Brainly your queries.
(D) It uses enzymes to liquefy food and kill bacteria to be further digested in the intestines.
Answer:
Natural selection is the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution while Artificial selection is Selective breeding is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.
Answer: xylem and the outside, which differentiate into phloem
Explanation:
Lungs (20)Lose elasticity and capacity (40% between ages 20 and 80), increasing difficulty to oxygenate blood.
