Ecology
What is a structure used to show a series of food chains found in one ecosystem?
Food Web
Simple cells containing no nucleus or membrane-bound organelles.
Prokaryotes
A means of reproduction by which offspring are genetically identical to their parents.
Asexual Reproduction
Which process is responsible for the change to the insect population over time?
A. gene flow
B. genetic drift
C. sexual selection
D. natural selection
D. natural selection
If an animal cell is placed in distilled water, it will swell and burst. The bursting of the cell is a result of which biological process
Osmosis
What do the arrows in a food chain represent?
What is known as the net movement of any type of molecule from a region of higher concentration to a region of lower concentration?
Diffusion
What do structural changes to genes cause?
Genetic Mutations
As an environment changes, and some organisms have a higher fitness than others, natural selection acts directly on
A. existing traits
B. genetic material
C. individual organisms
D. future traits
A. existing traits
Alligators will use their powerful feet, tail, and
snouts to dig a hole through the mud, producing
small ponds known as "alligator holes." Many
other species benefit from alligator holes. During
the dry season, fish, turtles, and other aquatic
animals live in the alligator holes. Birds, terrestrial
animals, and plants use these holes as a source
of water. What term best describes the role of
alligators in this ecosystem?
a keystone species
Producers obtain their energy from ________________.
The sun
Organelle responsible for protein synthesis
Ribosome
A term used to describe a trait which is dominant, but does not completely mask a recessive trait.
incomplete dominance
A type of natural selection in which two separate phenotypes are favored.
Disruptive Selection
Kyle is making a drawing in his notes to summarize the carbon cycle. What is the only step in Kyle's drawing that should show carbon dioxide from the atmosphere being taken in and used by living organisms?
Photosynthesis
Water, sunlight, and oxygen are all examples of _________ factors.
Abiotic
Organelle responsible for ATP synthesis
Mitochondria
A mechanism by which somatic cells replace damaged cells with exact copies of the previous cell.
Mitosis
What is a tool that can be used to show evidence of common ancestors among organisms?
Cladogram
A botanist crosses two pink-flowered plants. The cross is a case of intermediate inheritance that involves alleles that were not clearly dominant or recessive and could make red-, pink-, and white?flowered plants. If four plants are produced from the cross, what is the expected number of white?flowered plants?
1
Where does all energy originate from?
The sun
Type of solution which will make a cell lose water through the process of osmosis
hypertonic
Because of ____________, the insects that survived the first round of pesticide produced offspring that were likely to resist the pesticide as well. What is the name of this process?
Natural selection
A structure no longer serves a purpose, but is present due to its usefulness in an organism's past.
Vestigial Structure
What are the components of a DNA nucleotide?
deoxyribose (sugar), a phosphate, and a nitrogen base (adenine, cytosine, guanine, or thymine)