Living Environment Vocabulary: abiotic - carnivore pg A

describes new procedures that use discoveries in biology, particularly recombinant DNA tech.

plantlike organisms, often single-celled, that carry out photosynthesis

describes a self-feeding organisms that obtains its energy from inorganic sources (producers)

an immune deficiency disease, caused by HIV in humans

a very large area characterized by a certain climate and types of plants and animals

the hallow ball of cells that a zygote becomes after its first series of mitotic cell divisions

animals that obtain their energy by eating other animals

the blanket of gases that covers Earth; usually called air

microscopic air sacs in the lungs; their lining acts as the respiratory system

in humans, the 22 perfectly matched pairs of chromosomes; not the X and Y chromosomes

proteins on a foreign object that stimulate the immune system to produce antibodies

single-celled organism that have no nuclear membrane to surround and contain their DNA molecule

the membrane that surrounds, protects, and holds in fluid that cushions an embryo

oneof the most important elements in living things; form the backbone of most organic compounds

movement of substances across a membrane from an area of lower to higher concentration

a form of asexual reproduction in which the offspring grows out of the side of the parent

the smallest units of an element that can combine with other elements

smallest blood vessels where the exchange of nutrients and gases between the blood and cells

the chemistry of living things, found to be similar in all organisms

the total area of land, water, and air on Earth's surface where life is found

substance produced by the liver and secreted into the small intestine; breaks down lipids

conditions caused by an overreaction of the immune system

the variety of different species in an ecosystem or in the world

inorganic molecule which plants get carbon for photosynthesis; waste product of c. respiration

form of reproduction that requires only one parent to pass on genetic information

the substance used by cells as an immediate source of chemical energy for the cell

every action that an animal does; usually to aid survival

vessels that have thick, muscular walls that carry blood through the body (away from the heart)

the nonliving parts of an organisms environment

a chemical that kills specific microorganisms; frequently used to combat infectious diseases

describes the low pH level due to dissolved acids, such as acid rain

the two different versions of a gene for a particular trait

special characteristics that make an organism well suited for a particular environment

the ability to walk upright on two feet

organic compounds that are the building blocks of proteins

describes the living parts of an organism's environment

molecules that individuals produce as a defense against foreign objects in the body

illnesses cause when over-reactive immune system begins to attack its own normal body tissues

form of asexual reproduction used by single-celled organisms, such as the ameba

the process that occurs when food molecules are tiny enough to pass through the small intestine

the study of all living things, including humans

a disease that results from uncontrolled cell division, which damages normal tissues