biology 1.3 notes Flashcards
what is a cell
a cell is a collection of living matter enclosed by a barrier that separates the cell from its surroundings
3 to 4 characteristics of a cell
cells are small size, complexed and highly organized, and make up everything
what are 2 types of asexual reproduction
one type is a single celled organism divides in half to form two new organisms. another type is a portion of an organism splits off to form a new organism.
living things are based on a universal __
living things are based in a universal genetic code.
why did an organism need energy and a constant supply of materials
they need them to stay alive. they need them to grow, develop, and reproduce
what is metabolism
the combination of chemical reactions through which an organism builds or breaks down materials as it carries out its life processes
what is homeostasis
they maintain a stable internal environment
a group of organisms that changes over time is said to do __
a group of organisms is said to evolve or change over time.
what is a zoologist
what is a botanist
what is a paleontologist
zoologist study animals.
botanist study plants.
paleontologist study ancient life.
what is the largest level of biological study
the largest level is biosphere.
what kinds of info can the study of biology provide about matters affecting human society
biology can provide decision makers with useful info and analytic skills.
what is biology
biology is the science that seeks to understand the living world
