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BIO EXAM 2
Terms in this set (50)
Lichens result from an association of fungi and:
This is the correct sequence of major events in plant evolution from the earliest [oldest] to most recent [newest]:
descendance from charophytes; vascular tissue; seeds and pollen; flowers
Which of these organisms have chelicerae?
This is the correct sequence of major events in animal evolution from the earliest to most recent:
development of true tissues, descent from ancestral protist, development of bilateral symmetry
true or false: bryophytes do not have vascular tissue
in the process of metamorphosis in the lepidoptera order of insects, which of these is the larval form?
A member of this genera of bacteria is responsible for the production of the botulinum toxin that causes botulism:
In agriculture, soybeans, and other types of legumes are planted to replenish the soil with forms of nitrogen that plants can use. This organism plays a major role in the process of nitrogen conversion associated with the legumes.
This is an example of a colonial green algae.
true or false: cartilagenous fishes have a lateral line system and a swim bladder.
On the pacific coast, there has recently been an increase in red tide occurances thought to be due to increases of nutrient input from sewage and fertilizer runoff. What is the most appropriate term to explain the red tide events?
What was the primary limiting factor for the evolution of aquatic algae to terrestrial plants?
this organism has a complete digestive tract
true or false- insects have adapted to terrestrial and freshwater aquatic habitats
Rhodophyta is a type of algae that can live at great depths due to specialized red and blue photosynthetic pigments. In what major group of algae is the organism most appropriately classified?
Agar is used in laboratories as a solidifying agent in media to grow bacteria. What is the natural source of this agar?
Which of these is not a characteristic of most fungi?
In reference to the geological time scale, the process of photosynthesis occurred after the advent of prokaryotes, and photosynthesis then contributed to the diversification of microorganisms due to the production of oxygen. Which organism is thought to play a major role on early earth in this important metabolic process?
From which group did plants primarily descend?
true or false- protozoans can ingest bacteria
this is not a major branching point in chordate evolution
appearance of radial symmetry
In marine environments, sea anemones provide protection for the anemone fish from predators [by using stinging tentacles], and the anemone fish protects the sea anemones from the butterfly fish, which eats the anemones. This is the term that best describes this relationship.
the following is not a characteristic of all animals
this organism is characteristically highly productive in black smoker deep sea hydrothermal vents
an organism in this group was the cause of the irish potato famine
this is the structure that in some chordates develops into vertebrae in adults
true or false- the polyp body plan of cnidarians is stationary
the tentacles of cephalopods are modified structures from which part of the body plan of mollusks?
which of these has a reduced [dependent] gametophyte?
gymnosperms, seedless vascular plants, and anigosperms
true or false- the endosymbiotic theory states that chloroplasts originated form a photosynthetic prokaryote living inside another prokaryotic cell
true or false- paramecium moves by flagella
true or false- sponges are filter feeders
true or false- in the alternation of generation of plants, the sporophyte is diploid
true or false- the embyronic development of all animals is characterized by the development of a gastrula
silica is used in paint on roadways to give it reflective properties. the remains of this organism would be the most likely source of the silica
this is the reproductive structure in a flower responsible for pollen production
true or false- the endosymbiotic theory explains the origin of prokaryotic cells
this is not a primary function of the water vascular system of echinoderms
true or false- the larval form of echindoerms has radial symmetry
forams move with several cytoplasmic extensions called pseudopodia. in what group of organisms are forams?
true or false- the type of yeast used to make bread rise is classified as a basidiomycete
this is an example of an organism that is typically involved in a mutualistic relationship
global amphibian declines are likely attributed to which group of primitive fungi
true or false- halobacerium is extremely salt tolerant
true or false- both reptiles and mammals are categorized as amniotes
these were the first group of vertebrates to colonize land
giardia is a type of parasitic
true or false- gymnosperms produce flowers
this tissue layer in a gastrula develops into the skin and nervous system
which of these has no true tissues
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You are studying a new species of bird. You know the species has sex chromosomes similar to chicken. Males carry two Z chromosomes, whereas females carry one Z chromosome and one W chromosome. Because the genome has not been sequenced yet, you will perform crosses to gain more genetic information. You are interested in the eye color of the birds. You obtain true-breeding birds with black or green eyes. You cross a black-eyed male to a green-eyed female. Assume the trait is determined by one gene. A. Considering a dominant/recessive relationship, you want to determine if black is recessive to green or if green is recessive to black. How could you use the phenotypes for the F1 and F2 progeny to help you answer this question? B. If the trait is sex-linked, refine your answer to part A with respect to the dominant/recessive relationship of a sex-linked trait on the Z chromosome for the F1 generation. C. Assume that black is dominant to green. You cross a black-eyed male from the F1 generation to a black-eyed female from the F1 generation. If the trait is sex-linked, predict the genotypic and phenotypic ratios for the F2 generation.
How did organisms change the soil in North America over millions of years? Cite evidence to support your answer.
Imagine that you are taking part in a debate about Canadian emissions of greenhouse gases. Your opponent says, “Canada’s forests absorb carbon dioxide, so we don’t have to worry about our emissions. The more greenhouse gases we emit, the more our forests will absorb.” Write a short paragraph critiquing your opponent’s argument.
Which factors influence the type of reproductive strategy used by a species?