BSC 1010 Exam one

What is a community

All the populations of different species that live in an area

What is deoxyribonucleic acid (DNA)?

Molecule that encodes genetic instructions

autotroph that obtains energy and nutrients from nonliving sources

Producer

Flowers shaped for their pollinators, specific camouflaged color patterns of animals, and a beaver's enormous front teeth for gnawing are all examples of

adaptations

select two scientists that independently developed the idea of natural selection.

alfred russel wallace charles darwin

particles that make up molecules are called

atoms

examples of characteristics in organisms that make them well-suited to their environments

beavers have larger front teeth that are excellent at gnawing wood. an insect is shaped like the leaf of the tree it lives on. the long beaks of hummingbird pollinators match the shape of tubular flowers.

a level of biological organization called the _________ includes all parts of Earth and its atmosphere where life can survive.

biosphere

a living thing, or organism, exhibits certain properties of life and is composed of one or more _________, the basic unit of life

cells

heterotroph that obtains energy and nutrients by eating other organisms

consumer

heterotroph that obtains energy and nutrients from wastes and dead organisms

decomposer

What biological level includes the living and nonliving components of a particular area?

ecosystem

New complex functions and characteristics that arise when the smaller components of an organism interact are called ____ properties.

emergent

What is true of asexual reproduction?

genetic information comes from only one parent offspring are virtually identical to each other

what describes the state of internal constancy maintained by an organism?

homeostasis

What is a group of joined atoms, such as deoxyribonucleic acid (DNA)?

molecule

What is a structure of tissues organized to interact and carry out specific-functions?

organ

What are membrane-bounded compartments within eukaryotic cells that carry out specialized functions?

organelles

consider a species of frog that lives in many ponds throughout central california. A group of the frogs in one of the ponds, NOT including the other species of organisms living there, is an example of a(n)

population

Natural ____________ is a mechanism of evolution in which certain individuals from a population exhibit enhanced reproductive success based on inherited characteristics.

selection

In ________ reproduction, offspring are produced that contain a combination of genetic material from two parents.

sexual

an organ ______ is composed of several organs that are connected and working together

system

describe a cell

the smallest unit that can be called life