Biology

In polyquaternium-1 what if the lenses are contaminated with staphylococcus or acanthamoeba

Brandon Scott

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Channels within the structure of the cell membrane are composed of A) carbohydrates. B) disaccharides. C) phospholipids. D) proteins.

Samantha Barber

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Smooth muscle, a type of specialized muscle cell, functions in which process? 1. food digestion 2. skeletal movement 3. pumping of blood 4. heart contraction

Samantha Barber

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______ is a rock with a fine, dark texture that makes up the oceanic crust.

Ross Pratt

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Which feature is shown ONLY by higher invertebrates, as compared to lower invertebrates? Bilateral symmetry True coelom Three germ layers

Annie Barnes

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What must happen before a chemical reaction can begin? The activation energy must be exceeded. The activation energy must be reached. The concentrations of products and reactants must be equal. The concentration of reactant molecules must be reduced.

Timothy Norman

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What role does your heart play in delivering oxygen to your body cells? The heart breaks down carbon dioxide into carbon and oxygen. The heart pumps oxygen-rich blood to your body cells. The heart pumps oxygen through the alveoli, which deliver it to body cells. The heart takes in oxygen from the environment and delivers it to cells.

Kathy Robinson

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Which of these is true of the materials making up the buffy coat in centrifuged blood? which of these is true of the materials making up the buffy coat in centrifuged blood? they are less dense than both erythrocytes and plasma. they are denser than erythrocytes but less dense than plasma. they are intermediate in density between erythrocytes and plasma. they are denser then plasma and erythrocytes?

Whitney Matthews

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Which homeostatic process requires energy to move particles across the plasma membrane?

Tara Andrews

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Why do classification systems change over time? A. Scientists find new evidence in their studies. B. Scientists use old methods of classification. C. Scientists repeat experiments and find no changes. D. Scientists find similar evidence to previous work.

Heather Maxwell

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What is freud's term for primitive, biological side of personality?

Donald Ward

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Which of the following statements about the environmental movement is true? a. It incorporates the conservation movement. b. It is a purely social movement. c. It does not include the green movement. d. It seeks to address predominantly social issues.

Zach Chandler

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Which three characteristics are used to classify prokaryotes (1 point)?

Jessie Thompson

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Mangrove forests were traditionally viewed as unhealthy, unproductive environments. t or f

Kristi Hammond

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Talking about all things lunar, which of these forms of madness is related to the moon? A) HystericaB) LunacyC) InsanityD) Biebermania

Blair Lewis

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The amount of moisture in a prevailing wind depends on which two factors? temperature and downslope of mountains air pressure and warm fronts barometric pressure and temperature temperature and nearness to bodies of water

Carlton Burgess

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Choose the correct order of classifying organisms in the Linnaean system. Kingdom->phylum->class->order->family->genus->species . Species->order->family->genus->class->phylum->kingdom . Kingdom->phylum->class->order->genus->family->species .

Jodi Brooks

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Which statement correctly describes the bars on a bar graph representing the data?

Bethany Evans

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The shrubs and trees in windbreaks protect soil from erosion by rain water.

Kevin Sutter

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Only specialist species are well adapted to their native habitats. true or false

Ross Pratt

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Vines most successfully compete for sunlight in tropical rainforests by _______. A) climbing up into the canopy B) strangling the trees they grow on C) having broader leaves that absorb more light D) having thick, woody stems

Amanda Johnson

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Unstable atmospheric conditions lead to the formation of lightning and thunder in a. nimbostratus clouds. c. altostratus clouds. b. altocumulus clouds. d. cumulonimbus clouds.

Theresa Perry

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1. A natural resource that is mined for profit is called A. aggregate. B. ore. C. sand. D. topsoil.

Amanda Johnson

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The potential must be strong enough to send a(n) potential to the CNS.

Jodi Brooks

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Name three STIs that can be life-threatening or lead to life-threatening illnesses.

Jeffrey Rodriguez

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Weathering that does not alter the chemical composition of the rock is called a. chemical weathering. c. biological weathering. b. physical weathering. d. acid weathering.

Blair Lewis

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Which is the process of cancerous cells spreading to other body areas? metaphase cytokinesis fertilization metastasis

Ralph Lopez

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A period during which the embryo of a seed is alive but not growing is a. dispersal. b. fertilization. c. germination. d. dormancy.

Annie Barnes

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Which protein serves as a chemical messenger? A.Hemoglobin B.Actin C.Myosin D.Insulin

Ramon Kelly

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Which process plays an important role in the cycling of both carbon and nitrogen? (The answer is not respiration)

Jennifer Patterson

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Any time stress causes rocks to change, ____________ is the result. a. tension c. compression b. folding d. deformation

Victoria Fowler

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Which energy change occurs during boiling? Some heat energy of the substance is lost. Heat energy of the substance remains the same. Most heat energy of the substance is lost. Heat energy is absorbed by the substance.

Brandon Scott

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Which of the following is found in both DNA and RNA? A) ribose, phosphate groups, and adenine B) deoxyribose, phosphate groups, and guanine C)phosphate groups, guanine, and cytosine D)phosphate groups, guanine, and thymine

Roger Moore

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The United States’ fossil fuel shortage of makes the country dependent on outside sources.

Dana Keller

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How does current affect biodiversity in rivers and streams? a. It prevents bacteria and algae from living in rivers and streams. b. It causes a decrease in biodiversity by preventing organisms from remaining in rivers and streams. c. It mixes the nutrients for plant and animal use and determines location of organisms. d. It has no affect on biodiversity..

Amanda Johnson

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Where are rain gauges located? A. on or near the ground B. one meter above the ground C. on weather balloons D. on satellites

Craig Stewart

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Which of the following best describes similarities that exist between reptiles and amphibians?. . They are both ectothermic and have two-chambered hearts.. . They both have streamlined bodies and three-chambered hearts.. . They are both vertebrates that lay eggs to reproduce.. . They both have gills at some stage in their lives and are endothermic.

Brandon Scott

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Animals that use language are most likely those that have the greatest capacity for A. innate behavior. B. behavioral cycles. C. habituation. D. insight learning.

Heather Maxwell

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Figure 15-1 is an example of heat transfer by ____________________.

Annie Barnes

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Which shows the correct order of increasing tropic level from producer to tertiary consumer

Donald Ward

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Which of the following best describes a human sperm cell? (2 points). A.a diploid cell formed in the male testes.B.a diploid cell formed in the male penis. C.a haploid cell formed in the male penis. D.a haploid cell formed in the male testes

Craig Stewart

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

Karen Wright

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Which is biotic? water temperature beeswax snow

Melissa Norris

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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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Which is a similarity between alcohol fermentation and aerobic respiration? Both require oxygen. Both require light energy. Both start with glycolysis. Both produce alcohol.

Melissa Norris

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Total global precipitation is __________ total global evaporation. A)greater then B)less then C)equal to

Bethany Evans

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The _________ of the cell directs cell activity and acts like the control center.

Ramon Kelly

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