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Biology

Wetlands improve water quality by _______. a. filtration b. distillation c. osmosis d. all of the above

Amanda Johnson

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How can you tell if a dog is nervous to the point of being aggressive wag?

Theresa Perry

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Which statement is NOT true concerning transfer RNA? A) Transfer RNA is found in the cytoplasm of cells. B) Transfer RNA is one of three types of RNA found inside of a cell. C) Transfer RNA carries amino acids to the ribosome for use in making proteins. D) Transfer RNA has a 3 letter region called a codon, that matches with the anticodon of messenger RNA.

Victoria Fowler

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Practice of forming step-like fields on a steep slope

Kaitlin Dean

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What would happen if photosynthesis on Earth stopped?

Mindee Nelson

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The calcaneus (heel bone) of eosimias suggests that it may be a very primitive:

Eric Morgan

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In a protein molecule, the number of amino acid molecules may be as few as _____. 5 500 50 5,000

Ramon Kelly

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Which series lists particles in order from smallest to greatest mass? proton, electron, nucleus, atom electron, proton, nucleus, atom electron, nucleus, proton, atom nucleus, electron, proton, atom

Jeremy Wood

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Why are small populations more prone to genetic disease

Ross Pratt

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Limiting development on floodplains is effective because it

Deborah Edwards

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The first step in the replication of dna is catalyzed by _____. the first step in the replication of dna is catalyzed by _____. ligase helicase dna polymerase primase single-strand binding protein

Jessie Thompson

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Which of the following continents was not covered by ice during the Pleistocene ice age? a. Europe b. Asia c. Australia d. North America

Jodi Brooks

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What does the plasma membrane of a phagocyte attach to on a microorganism? what does the plasma membrane of a phagocyte attach to on a microorganism? pseudopods glycoproteins lysosomes phagosomes?

Kaitlin Dean

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Sperm are the only human cells to have _____. cilia mitochondria flagella lysosomes

Ronald Miller

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Which of the following structures surrounds the cytoplasm in a bacterial cell? A. Plasma membrane B. Cell wall C. Nucleoid D. Ribosome

Jeffrey Rodriguez

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Which of the following is a product of photosynthesis? A. Carbon dioxide B. Sunlight C. Water D. Oxygen

Samantha Barber

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Which of the following forms blood clots?

Tara Andrews

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If one amino acid in a protein sequence is changed, what could happen?

Karen Wright

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The three domains are _____. Archaea, Bacteria, and Eukarya Archaea, Prokaryote, and Eukarya Bacteria, Eukarya, and Animalia Animalia, Plantae, and Bacteria

Megan Page

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What term includes all the biotic and abiotic elements in an area? ecosystem population biome organ

Melissa Norris

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The electrons that chlorophyll loses electron transport chain are replenished by what molecule

Jessie Thompson

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This cross will yield four phenotypes in the 1:1:1:1 ratio: rryy x rryy RrYy x rryy RrYy x RrYy RRYY x rryy

Ashley Howard

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A coral reef is made of ______, a mineral that forms the skeletons of coral animals.

Ashley Howard

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Waves in the ocean transfer energy in which direction? in the same direction as the wind is blowing in the opposite direction that the wind is blowing in the same way Earth is rotating in the opposite way Earth is rotating

Annie Barnes

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Which statement best describes the flower based on its physical characteristics

Brandon Scott

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The triplet code can produce 64 possible codon combinations. What is an advantage of this? A. Every single codon specifies more than one amino acid. B. Every single amino acid has more than one codon. C. The first two bases of the codon specify the amino acid.

Cynthia Baker

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How do the benefits of natural change to ecosystems compare to the disadvantages? a. The benefits are outweighed by the disadvantages. b. The benefits outweigh the disadvantages. c. The benefits are equal to the disadvantages. d. There are no disadvantages to natural change in ecosystems. Please select the best answer from the choices provided A B C D

Kyle Mckinney

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A TT genotype is said to be _____.

Bethany Evans

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Quaternary consumers are not _______. a. consumers b. prey c. predators d. animals

Blair Lewis

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Dog breeding is an example of natural selection. Please select the best answer from the choices provided T F

Carlton Burgess

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Which of the following conditions would lead to a small population size? a.) a low birth to death ratio b.) a high birth to death ratio c.) immigration d.) large number of resources

Nicholas Rivera

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2. Which of the following is the best definition of sexual reproduction in plants? a. production of spores b. fusion of male and female gametes to make a zygote c. production of a gametophyte d. production of rhizomes 3. Which of the following is involved in asexual reproduction? sperm cells a. egg cells b. a zygote c. none of the above

Kevin Sutter

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Which of the following is a way that humans impact rivers and streams? a. pollution b. dams c. flooding d. all of the above

Kaitlin Dean

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The auditory processing area is in the __________ lobe.

Kyle Mckinney

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In the origin of species, darwin argued that the mechanism of descent with modification was _____.

Cynthia Baker

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A DNA strand has the sequence ACCGAGCTT. Which is the complementary strand of RNA?

Karen Wright

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Grass absorbs about _____ of the Sun's energy, while _____ is lost as heat.

Kristi Hammond

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____________,inherited traits that increase an organism's chance of survival, also determine an organism's niche.

Tara Andrews

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What always affects measurement error in an experiment? A. investigator bias B. variability in nature C. instrument precision D. misreading the instrument

Theresa Perry

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________ is a neurotransmitter with roles in pleasure and pain modulation.

Deborah Edwards

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Primary productivity is not limited by _______. a. the availability of sunlight b. time c. the availability of nutrients d. access to water

Eric Morgan

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Which is biotic? water temperature beeswax snow

Melissa Norris

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Which term identifies the process used by the cell to bring in large molecules

Ross Pratt

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Which of the following are items that are a threat to biodiversity? pollution and succession habitat loss and predation poaching and habitat loss succession and pollution

Brandon Scott

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What contributes to the high level of biodiversity found in wetlands? a. the large amount of available organic matter to organisms that are food for larger organisms b. the amount of available water for organism use c. the high nutrient availability d. all of the above

Kyle Mckinney

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What is the area of the brain that undergoes considerable development during the adolescent years? corpus callosum myelin bridges prefrontal cortex cerebral cortex?

Donald Ward

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Unlike toads, tortoises A. have amniotic eggs. B. have lungs. C. have true bone. D. have jaws and paired appendages.

Curtis Rhodes

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Which statement best distinguishes an observation from an inference?

William Cain

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