Bio 2 Test 2
Lignin
A strengthening compound found in cell walls of vascular plants is ____
Unexplored
In chapter 8, Wilson considers the Earth's biosphere to be largely ____
Adaptive Radiation
In chapter seven of E.O. Wilson's book The Diversity of Life, _____ is the term applied to the spread of species of common ancestry into different niches.
The first stage in the diploid sporophyte generation is the zygote
In plant life cycles
Brown Algae
Kelps are ____ with multicellular bodies differentiated into blades, stipes, holdfasts, and gas-filled floats.
Charophytes
Plants probably descended from a group of green algae called ____
Pathogens
Some parasitic protists are important ___ (disease-causing agents) of plants and animals
allow gas exchange for photosynthesis
Stromata
Plankton
The floating, often microscopic organisms that are the base of food webs in aquatic ecosystems are collectively called ____
Angiosperm
The most diverse , successful, and familiar group of plants today are the _____
Cilia
The surface of a paramecium is covered with thousands of short, hair like ______
Two new genetically identical cells that differ genetically from what they were before
This is conjugation in paramecium. What is the outcome of the process illustrate in the accompanying figure?
Flagella
Water molds(Oomycetes) are heterokonts, organisms that have two different kinds of ____
Diatoms
Which algal group contains individuals that are typically unicellular and form siliceous shells?
Fern
Which of the following is a vascular plant?
Ecosystem,Community, Guild, Species, Organism, Gene
According to E.O. Wilson, one important way of describing diversity is by level of biological organization. The organizational levels of importance to biological diversity are in the hierarchy:_____
red algae, green algae, and plants
According to Solomon et al.., the monophyletic supergroup "Archaeplastids" includes
Diploid and haploid stage
Alternation of generations in plants refers to the alternation of _____
Symbiotic
Although many protists are free living, others form stable _____ associations with unrelated organisms. These intimate associations range from mutualism, to commensalism, to parasitism
Pseudopodia
Amoebas move and obtain food by means of ____
Chemohetertrophs
Animals, fungi and most bacteria are known as ____, because they obtain energy from chemicals(typically by redox reaction) and because they cannot fix carbon; they use organic molecules produced by other organisms as the building blocks from which they synthesize the carbon compounds they need.
Amoeboid
Cellular slime molds feed as individual _____ cells
Cilia
Ciliates use ____ for locomotion
Paraphyletic
Given the diversity in protist ultrastructure and molecular data, biologist regard the protists as a ____ group, meaning that some are descendants of a common eukaryote ancestor.
Is caused by the apicomplexan Plasmodium falciparum, that sends part of its life cycle in the Anopheles mosquitoes and part in humans
Malaria
Dinoflagellates
Members of which group known to form blooms known as red tides?
Pathogens
Microorganisms that cause disease are called _____
Conjugation
Most ciliates, such as Paramecium, are capable of sexual process called ____, in which two individuals come together and exchange genetic material
Monoecious
Most conifers have separated male and female reproductive parts on the same tree. This condition is referred as _____
Zooxanthellae
Most dinoflagellates are a part of marine plankton. The ____ are endosymbiotic, photosynthetic dinoflagellates found in certain marine invertebrates; their mutualistic relationship with corals enhances the corals' reef-building ability
Aquatic
Most protists are _____
Multi-Nucleate
Plasmodial slime molds feed as ___ plasmodia
Phytophthora
The Irish potato famine of the 19th century was precipitated by an Oomycete in the genus ___, which causes late blight of potato
Trichonymphs
The ___ are specialized excavates that live in the guts of termites and wood eating cockroaches. The y ingest wood chips from wood the termites and roaches eat and rely on endosymbiotic bacteria to digest cellulose in the wood. The insects, ______ and bacteria all obtain their nutrients from this source. This is an example of mutualism.
Cuticle
The airtight, waterproof, waxy layer that covers aerial parts of plants is the _____
Golden algae
Which group of protists are unicellular, briflagellate stramenopiles that forma a significant portion of the nanoplankton?
Gymnosperms produce seeds born naked while flowering plants produce seeds enclosed within a fruit
Which is the basic difference between gymnosperm and flowering plants?
Keystone
Wilson uses the sea otter as an example of a classic ______ species.
Dictyostelium discoideum (a cellular slime mold)
You find a unicellular organism that forms lobe like pseudopodia. When you expose the cells to cAMP. they aggregate into a slug like structure. Based on this information, you correctly conclude that this organism is known as _______
Plants
_____ have cell wall with cellulose and characteristically obtain most of their energy from sunlight via photosynthesis using chlorophyll contained in chloroplasts, which gives them their green color. However, some are parasitic and may not produce normal amounts of chlorophyll or photosynthesize. They are also characterized by sexual reproduction, modular and indeterminate growth, and a alternation of haploid and diploid generation, although asexual reproduction is common.