Show:
Evolution
prokarotes
plant diversity
animal forms
ecology
100
Biological species consist of groups of ______. A) populations B) domains C) families D) phyla E) genera
What is populations
100
You discover a prokaryote that can make its own food in the absence of light. Nutritionally, you would classify this prokaryote as a ______. A) chemoautotroph B) photoheterotroph C) decomposotroph D) photoautotroph E) chemoheterotroph
What is chemoautotroph
100
For a plant, carbon and nitrogen are _____. A) macronutrients B) micronutrients C) minerals D) vitamins E) none of the above
What is macronutrients
100
) Digestion is the ______. A) absorption of nutrients B) conversion of glycogen to glucose C) breakdown of food into small nutrient molecules that the body can absorb D) churning of food in the stomach and intestine E) conversion of glucose to ATP
breakdown of food into small nutrient molecules that the body can absorb
100
) Opportunistic species typically ______. A) are very long-living B) have a large number of offspring C) are large-bodied D) reach sexual maturity slowly E) exhibit a Type I survivorship curve
have a large number of offspring
200
. On what basis are populations assigned to the same biological species? A) a very similar appearance B) being able to interbreed and produce fertile offspring C) relating to the environment in the same way D) sharing a common ancestor E) having 99% of their genes in common
being able to interbreed and produce fertile offspring
200
According to the theory of endosymbiosis, which organelles evolved from small prokaryotes that established residence within other, larger prokaryotes? A) vacuoles and lysosomes B) Golgi apparatus and endoplasmic reticulum C) centrioles and ribosomes D) nucleoli and chromosomes E) mitochondria and chloroplasts
What is mitochondria and chloroplasts
200
Which of the following supplies water and absorbed nutrients to a typical plant? A) the air B) its sap C) sunlight D) the soil E) macronutrient
What is the soil
200
Most nutrient absorption occurs in which part of the digestive system? A) stomach B) liver C) pancreas D) small intestine E) large intestine
What is small intestine
200
In the absence of limiting factors, a population's growth follows a(n) ______ model. A) exponential B) hypergeometric C) mathematical D) logistic E) geometric
What is exponential
300
. A reproductive barrier that prevents species from mating is an example of ______. A) a pre-zygotic barrier B) reduced hybrid viability C) zygote mortality D) a post-zygotic barrier E) reduced hybrid fertility
a pre-zygotic barrier
300
. The prokaryotic group that tends to inhabit extreme environments belongs to the ______. A) kingdom Monera B) kingdom Protista C) domain Archaea D) domain Monera E) domain Bacteria
What is domain Archaea
300
Which of the following terms best describes a mycorrhizal association? A) parasitic B) mutualistic C) commensal D) neutral E) competitive
What is mutualistic
300
. In humans, oxygen is delivered to the cells of the body by the ______ system. A) circulatory B) digestive C) reproductive D) lymphatic E) endocrine
What is circulatory
300
Organisms at the first trophic level are ______. A) detritivores B) decomposers C) primary consumers D) predators E) producers
What is producers
400
Sympatric speciation specifically excludes ______. A) behavioral isolation B) mechanical isolation C) post-zygotic barriers D) geographic isolation E) temporal isolation
geographic isolation
400
Which of the following would likely be the most difficult to kill were you to can your own food? A) microspores B) endospores C) sporophylls D) sporophytes E) megaspores
What is endospores
400
Which of the following convert atmospheric nitrogen to ammonium? A) nitrifying bacteria B) E. coli bacteria C) nitrogen-fixing bacteria D) amino acidifying bacteria E) ammonifying bacteria
What is nitrogen-fixing bacteria
400
In animals with a closed circulatory system, gas exchange occurs across the thin walls of ______. A) veins B) arteries C) arterioles D) capillaries E) venules
What is capillaries
400
) Populations of two coexisting species are both tertiary consumers in a community. What relationship may exist between these two organisms? A) predation B) mutualism C) competition D) commensalism E) parasitism
What is competition
500
The idea that life regularly arises from nonliving matter is referred to as ______. A) polymerization B) diversification C) spontaneous generation D) endosymbiosis E) biogenesis
spontaneous generation
500
Prokaryotes reproduce by means of ______. A) mitosis B) binary fission C) budding D) the cell cycle E) meiosis
What is binary fission
500
Which of the following mechanisms best explains how xylem sap moves up against the downward pull of gravity? A) transpiration-cohesion-tension mechanism B) adhesion-tension-diffusion of oxygen C) reverse osmosis-adhesion-transpiration D) rapid diffusion of glucose-transpiration E) glucose pumping-adhesion-tension mechanism
What is transpiration-cohesion-tension mechanism
500
Which of the following cell types are specificall responsible for humoral immunity? A) T cells B) B cells C) phagocytic cells D) natural killer cells E) interferons
What is B cells
500
) The single greatest threat to biodiversity comes from ______. A) habitat destruction and fragmentation B) invasive species C) overexploitation D) pollution E) human predation
What is human predation