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Botany Test 3
Terms in this set (31)
In the _____, a virus kills a cell by lysing it.
The enzyme that catalyzes the synthesis of DNA from RNA is called
The human immunodeficiency virus is a
A virus spreads throughout the plant by passing through cytoplasmic connections called
Some species of prokaryotes are covered by a ____ or slime layer.
Small DNA loops, called ____ maybe present in prokaryotic cells in addition to the bacterial chromosome.
Some prokaryotes have hundreds of straight, hair-like appendages known as
Durable resting structures called ______ are produced by many bacteria when environmental conditions become unfavorable.
Most prokaryotes are ____ and must obtain organic molecules from other organisms.
One group of archeabacteria, the _____, live in extremely salty conditions.
Rod-shaped prokaryotes are ______.
The ____ are the walless bacteria.
Many important pathogens of both plants and animals, including humans, are ____ eubacteria.
Organisms that are multinucleate are said to be _____.
The floating organisms, mostly microscopic in size, that are the base of the food web in aquatic ecosystems are collectively called
Dinoflagellates have two _____ for locomotion.
Accumulations of dead diatoms which settled to the ocean floor eons ago, were transformed to sedimentary rock, and eventually uplifted geological processes, are now mined as ______
A flagellated spore is called a
Reproductive organs in which gametes are produced are called
_____ reproduction involves the union of two gametes that differ in size and/or motility.
A ____ is a filamentous fungus
A ____ hypha contains two genetically distinct nuclei.
Mutualistic relationships between fungi and the roots of plants are called
The poisonous compounds produced by fungi are collectively called
Plants have a waxy ____ covering the aerial parts to prevent desiccation.
_____ plants have two vascular tissues, xylem and phloem.
The sporangium of mosses is called a
The filamentous thread of green cells that is produced when a bryophyte spore germinates is called a
The flat, ribbon like branching plant body found in hornworms and some liverworts such as Marchantia is called a
The _____ generation is haploid and the _____ generation is diploid.
Gametophyte and sporophyte
What are serotinous cones?
Serotinous cones are covered with a resin that must be melted for the cone to open and release seeds. After a fire goes through the forest, the seeds will be distributed by wind and animals
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