Biology Freshman Finals 1 Flashcards
Finals (91 cards)
Organisms come in a different forms:
Plants Animals EuBacteria Archaea Fungi Protozoa
Spontaneous Generation -
the idea that living things could come from nonliving things
evidence that all living things must come from other living things is known as:
the theory of BIOGENESIS
Cells -
the smallest unit of life
Unicellular =
1 celled
Multicellular =
many celled
Sexual =
DNA from 2 different parents
Asexual =
single parent (cloning, budding)
Genetic Code –
instructions (DNA) found in all living things. Living things require energy.
Heterotrophs -
(animals) obtain energy from eating other living things
Autotrophs -
(plants) obtain energy from the sun.
Living things RESPOND to the environment.
A response is a reaction to a STIMULUS
Plants respond to_____ &_____ to maintain internal balance
light and gravity
Homeostasis =
maintaining constant internal conditions (sameness)
Homeostasis is maintained using a system of_____
FEEDBACK LOOPS in the body
Adaptation -
the evolutionary process whereby an organism becomes better able to live in a habitat or habitats
Group-
and assembly of animals plants or microrganisms having the same distinctive features which identify them from others
Individual-
one genome and one body
Physical characteristic -
observable features of an organism such as size, color, shape, etc., determined by genes and environment influences
Behavioral characteristic -
those actions that are observed and organisms throughout their species, it is inherited through learning and instincts
Nutrition -
the process of taking in food and converting it into energy and other vital nutrients required for life
Energy -
the availability to produce change or perform work
Kilocalorie-
the amount of heat energy needed to raise the temperature of one KG of water by 1°C
Prey -
an animal, which is hunted by another animal for food