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Biology

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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At which boundary does subduction stop occurring, resulting in a mountain range? oceanic-oceanic convergent boundary oceanic-oceanic divergent boundary continental-continental convergent boundary continental-continental divergent boundary

Ralph Lopez

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Which of the following is required for dark reactions to take place? a. light b. oxygen c. atp d. water please select the best answer from the choices provided a b c d

Blair Lewis

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What may a salesperson say when you enter a store? a. te queda mal b. te queda bien c. como me queda d. en que puedo servirle

Whitney Matthews

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Three-carbon molecules of PGA are converted to energy-rich G3P sugar molecules by _____. A) O2 and H20 B) CO2 and H20 C) ATP and NADPH D) ADP and NADP+

Kevin Sutter

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How does urine osmolarity compare between the two treatment groups?

James Washington

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Direct observation is the simplest and most effective method to determine population size. True or false?

Eric Morgan

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What reaction is being catalyzed in this experiment? 2. what is the name of the enzyme in this experiment? what is the substrate?

Tara Andrews

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(HELP)!!!!!!!!!!!!!! Which best describes how Johannes Kepler developed his laws of planetary motion? A.) He calculated the gravitational force on orbiting bodies. B.) He debated with Copernicus who proposed the heliocentric model. C.) He examined the motions of planets through a telescope. D.) He analyzed data collected by Tycho Brahe.

Heather Maxwell

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How are amino acids assembled during translation?

Roger Moore

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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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The neuroendocrine system consists of which of the following? A.Nerve impulses and hormones B.Circulation and neurons C.Neurons and nerve impulses D.Hormones and circulation

Samantha Barber

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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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In terms of population factors, abundance refer to

Kathy Robinson

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The higher mental functions, such as reasoning, are mostly carried out in the _________________. cerebellum brainstem limbic system cerebral cortex

Roger Moore

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Identify the animal below that is not in the same class as the others.. A.Crayfish. B.Crabs. C.Scorpions. D.Lobsters

Nicholas Rivera

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Antibodies are produced when the body is exposed to __________. antigens macrophages receptor proteins

Melissa Norris

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Which of the following statements about human impact on trees is true? a. Human activity always has a negative impact on trees. b. All human uses of trees require destruction of the trees. c. Human activity has had both a positive and negative impact on trees. d. Cutting down trees is the only activity that has a negative impact on trees.

Jeremy Wood

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Explain why biomes are not typically classified by temperature.

James Washington

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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 of the following best explains the importance of Earth’s crust to living organisms? a. The continental crust allowed the evolution of life on land. b. The crust provides raw materials necessary for life. c. The crust allowed the formation of fossil fuels. d. The rock cycle recycles sedimentary rocks formed from animal shells.

Annie Barnes

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Fish and amphibians commonly conduct fertilization.

Donald Ward

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Nucleotides are the basic unit of which macromolecules?

Tara Andrews

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

Donald Ward

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The lymphatic system produces eggs and protects the fetus. true or false

Melissa Norris

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ATP is composed of an adenosine molecule and ___ phosphates.

Annie Barnes

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A magnifying glass is an example of which type of microscope? electron microscope scanning microscope compound light microscope simple microscope

James Washington

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Which statement best describes temperature variations? Variations are greater over water than over land. Variations over water cannot be determined. Variations are the same over water and land. Variations are greater over land than over water.

Annie Barnes

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Which materials are excreted through sweat glands in the skin? carbon dioxide, hydrogen, and water salt, urea, and water urine, alcohol, and water fats, ammonia, and water

Donald Ward

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Metamorphic rocks that don’t have layers

Kaitlin Dean

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The receptor potential is generated at the _______. the receptor potential is generated at the _______. receiving region secretory region output region conducting region

Nicholas Rivera

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Which best describes the peripheral nervous system 1It is made up of brain and spinal cord 2it transmits information that is received from stimuli 3it is part of an automatic nervous system 4it processes information that is received from stimuli

Ashley Howard

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What is the end result of eukaryotic cell cycle?

Deborah Edwards

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The response of an effector is _____.

Dana Keller

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In what pattern does the flow of energy in the ecosystem take place? multirectional bidrectional unidirectional

Ashley Howard

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DNA copying can be done by bacteria or by using

Cynthia Baker

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Which statement best describes the amount of catalyst that remains at the end of a reaction? A.More catalyst is present at the end than at the beginning of the reaction. B.Less catalyst is present at the end than at the beginning of the reaction. C.The amount of catalyst is the same at the end as at the beginning of the reaction. D.The catalyst is consumed by the reaction, so none remains at the end of the reaction.

Justin Parker

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Which term refers to a solution with more molecules outside the cell than inside the cell? A. hypertonic B. hypotonic C. equitonic D. isotonic

Nicholas Rivera

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Which of the following plant structures provides most of the water necessary for photosynthesis? a. roots b. leaves c. chloroplasts d. stomata

Kyle Mckinney

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Which of the following describes asexual reproduction? infertile offspring through genetic exchange fertile offspring despite geographic isolation two parent organisms and genetic exchange one parent organism and no egg or sperm

Jeremy Wood

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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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How are the density and temperature of air related?

Eric Morgan

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Which of these elements is found in both carbohydrates and water? carbon oxygen-----this one nitrogen helium

Justin Parker

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What is the effect of differential reproduction over time?

Kristi Hammond

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The size of a food web is limited by the number of

Victoria Fowler

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What term describes a tiny, membrane-bound structure inside a eukaryotic cell?

Whitney Matthews

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Which of the following is an example of gene flow?

Kristi Hammond

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