Cell Structure & Function
Which term best describes the type of cell division in which parent cells produce daughter cells with the same number of chromosomes as the parent cells?
What is Mitosis
A. fungi and plants
B. fungi and protists
C. protists and plants
D. plants and animals
What is C protists and plants
A scientist treats a cell with a chemical that destroys the ribosomes. As a result, which cell process will be stopped?
A. osmosis
B. photosynthesis
C. protein synthesis
D. respiration
What is C-Protein Synthesis
What is a process that increases population size?
Births or immigration
A. Water left the lettuce cells by diffusion.
B. Water entered the cells of the lettuce by osmosis.
C. Osmosis caused salts to enter the lettuce cells.
D. Salts in the leaf caused water to leave the cells.
This process during protein synthesis occurs in the nucleus and produces a molecule of mRNA
What is Transcription
According to fossil records, the horses that lived 50 million years ago were much smaller, weaker, and slower than modern horses. Which mechanism of evolution is most likely responsible for the changes that have led to the increased size, strength, and speed in horses?
What is Natural Selection
In which way are photosynthesis and cellular respiration different?
A Cellular respiration stores ATP, while photosynthesis releases ATP.
B Cellular respiration produces oxygen, while photosynthesis uses oxygen.
C Photosynthesis releases energy, while cellular respiration stores energy.
D Photosynthesis uses carbon dioxide, while cellular respiration produces carbon dioxide.
What is-D Photosynthesis uses carbon dioxide, while cellular respiration produces carbon dioxide.
In an ecosystem, which is the most likely reason for an increase in the producer population if there is an increase in the carnivore population?
A. fewer herbivores
B. higher temperatures
C. less food
D. more oxygen
What is A fewer herbivores
A. genetic recombination
B. energy involvement in gamete production
C. length of life cycle
D. number of offspring produced
A genetic recombination
In humans, glucose is kept in balance in the bloodstream by insulin. Which vocabulary term refers to processes that help keep systems in the body in balance?
What is Homeostasis
Which sequence shows increasing ecological levels of organization?
A. organism, population, community, ecosystem
B. ecosystem, population, organism, community
C. community, ecosystem, population, organism
D. population, organism, ecosystem, community
What is A organism, population, community, ecosystem
Some flowers show incomplete dominance. If RR = white and R′R′ = red, which phenotypic ratio would be expected in the offspring of two pink flowers?
1 Red: 2 Pink: 1 White
An increase in genetic variation within a species is most likely to result from which situation?
A. severe weather conditions that might occur, such as hurricanes or blizzards wipes out a large portion of the population.
B. a group of organisms have genetic mutations that are favorable in their environment.
C. the extinction of competing species over a broad range of habitats
D. a small population gets isolated from a larger population.
B. a group of organisms have genetic mutations that are favorable in their environment.
Pollen in plants is most similar to which type of cell in humans?
What is -Sperm
Which will most likely happen if the decomposers are REMOVED from the carbon cycle?
A. The amount of carbon dioxide in the atmosphere will increase.
B. The amount of carbon dioxide in the atmosphere will decrease.
C. The amount of carbon dioxide used by producers will increase.
D. The amount of carbon dioxide needed by consumers will decrease.
What is B The amount of carbon dioxide in the atmosphere will decrease.
Predict what may occur if a cell skips the S phase of interphase?
Too little DNA for daughter cells. Daughter cells not identical.
A. SsTt
B. Ss, Tt
C. S, s, T, t
D. ST, St, sT, st
D. ST, St, sT, st
Evolution by Natural Selection is a theory well known in the scientific community. What are two pieces of evidence to support evolution?
Fossil record, Biogeography, Comparative Embryology, Comparative Anatomy, Comparative Biochemistry, Observable changes
What is the function of enzymes in biological systems?
What is Enzymes act as catalysts to speed-up chemical reactions.
When an environment has reached its carrying capacity for a certain population, which of the following is true?
A. Growth and immigration rate is equal to death and emigration rate.
B. Growth and immigration rate is greater than death and emigration rate.
C. Growth and immigration rate is less than death and emigration rate.
D. Growth rate is exponential.
What is A. Growth and immigration rate is equal to death and emigration rate.