Ultimate Biology Study Guide - Questions & Answers

Prokaryotic genes are often organized into _____.
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There are two types of systems: open and closed. An open system is one in which energy can be transferred between the system and its surroundings. The stovetop system is open because heat can be lost into the air. A closed system is one that cannot transfer energy to its surroundings. Biological organisms are open systems.
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Refer to the figure associated with this question. The mRNA is smaller than the length of the DNA that codes for it because ________.
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Use extrapolation to determine the environmental salt concentration that is isotonic to the paramecium?
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physical variations amongst organisms within the same species are caused by which genetic factor?
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Cells differentiate according to the chemical environment they are immediately exposed to: ________
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Classify each statement about the heritability of a phenotype according to the narrow-sense heritability value it describesAnswer:-0.02 (va is small):-Genes do not likely contribute to the phenotypic variability in the population-A relationship between the phenotypes of parents and their offspring is mostly determined by environmental factors-0.5 (va is about half):-half of the observed variation is due to the additive genetic effects of alleles-0.98 (va is almost all):- Parents and their offspring share heritable phenotypes-Phenotypic differences result from genetic variationExplanation:-(va/vp)
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Which form of contraception, after a woman decides that she is ready to start a family, may interfere with these plans by increasing her chances of infertility for up to 12 months?
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Which is an agent that causes a mutation in dna or chromosomes? nondisjunction karyotype mutagen phenotype
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The subdivisions of the motor nervous system are the nervous system and the nervous system.a. Trueb. False
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Which process is part of a cellular process of chromosomes
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4. What is TRUE about the use of bones to solve crimes?Children are best identified by observing ribs and joints.Adults are best identified using teeth and long bones.When human bones are found, a crime definitely took place.The long bones are measured in length and circumference.
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what are deep ocaen currents
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What are characteristics of living things describe each of them
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what are organic materials
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which type of channels are found in axons of all types of neurons that open in response to change in membrane potential?
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sometimes, plants will reward their pollinators with something that benefits them. what is an example of a plant attractant that is also a pollination reward?(1 point)
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because cyclic amp diffuses quickly through the cytosol and a cyclic amp phosphodiesterase rapidly converts cyclic amp to amp, what is the consequence? group of answer choices the cytosolic concentration of cyclic amp can change rapidly. the responses triggered by an increase in cyclic amp are rapid. the responses triggered by an increase in cyclic amp are slow. cyclic amp is not often used to mediate cell responses. cells must sequester cyclic amp.
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micro what is the difference between serum and plasma? multiple choice serum is the liquid part of blood and plasma contains all the red blood cells. there is no difference, they are essentially the same fluid. plasma contains no clotting proteins that are found in serum. serum is plasma, with all the clotting proteins removed.
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what is the function of long appendages for most phytoplankton? group of answer choices makes them more attractive to potential mates provides increased buoyancy creates greater surface area for waste exchange allows them to absorb more sunlight
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Identify the cranial nerves associated with gastrointestinal tract motor output
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The signal that tells soluble proteins to be sent forward to the lysosome is ________
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Researchers have found that relationships between aging parents and their children are often characterized by A. intense love. B. reciprocity. C. reverence. D. ambivalence
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In the troposphere, pressure _____________ with height and temperature typically ____ ____ with height.
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