1st quarter topics
Name five characteristics shared by all living organisms?
DNA, respond to stimulus, metabolism, reproduce, maintain homeostasis, evolve as a species over time, made of cells, growth and development
what word means maintaining a consistent internal environment?
homeostasis
What is the probability of offspring who have homozygous recessive genotype if the parents are both heterozygous?
25%
Who proposed the theory of evolution by natural selection?
Charles Darwin
Where do producers get energy from?
The sun (photosynthesis) or chemical processes (chemosynthesis)
Which macromolecule provides quick energy?
carbohydrates
What word means a kind of passive transport that goes from high concentration of particles to a low concentration of particles.
diffusion
What cell reproduction process makes four genetically distinct cells?
meiosis
What evidence for evolution do homologous structures give?
common ancestry
A population consists of...
organisms of the same species living in the same area
Proteins are made of what monomers?
amino acids
What is the movement of water through a semipermeable membrane called?
osmosis
Name to reasons mitosis is important.
repair of damaged tissue, growth and development of an organism, replace damaged/dead cell.
What is natural selection?
That members of a species more suited to their environment will survive longer and reproduce more than those who are less fit for that environment.
What graphic representation shows Multiple feeding relationships in an ecosystem?
food web
What characteristic of water makes it a good solvent?
polarity
The process of protein synthesis carried out in the ribosome.
translation
What shape is the DNA molecule?
double helix
A mutation that is beneficial to an organism is called a(n)
adaptation
What do we call elements in an ecosystem that are not living.
abiotic factors
What is the difference between passive and active transport?
Active transport uses energy, passive does not
The process of using carbohydrates and oxygen to create energy in the form of ATP.
cellular respiration
What nucleotide base pairs with adenine in DNA synthesis?
Thymine
Choose the best answer:
Evolution acts on:
A. Individuals
B. Populations
C. Organelles
D. Cells
B. populations
What do we call the maximum number of organisms of a species that an ecosystem can support?
carrying capacity