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Biology

This is science...1. In a hot-water heating system, room temperature is controlled by a device called an?________2. Heat Engines convert which type of energy into mechanical work?a. chemical b. nuclearc. thermald. elastic 3. How are internal combustion engines different from external combustion engines? Give examples of both types of engines._____________________

Victoria Fowler

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A single atom of gold can be

Kyle Mckinney

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Which of the following represents the phases of mitosis in their proper sequence? a. prophase, metaphase, anaphase, telophase b. interphase, prophase, metaphase, anaphase, telophase c. interphase, prophase, metaphase, telophase d. prophase, metaphase, anaphase, telophase, cytokinesis

Tara Andrews

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Most scientific questions are based on A) opinions. B)hypotheses. C) observations. D) experimental data.

Jennifer Patterson

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What is one way to describe elements? a. They are the smallest particles of any material. b. They are the building blocks of matter. c. They are the most expensive materials on earth. d. They break down easily.

Bethany Evans

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Glucose is NOT made from which of the following? A- carbon dioxide B- sodium chloride C- light D- water

Heather Maxwell

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Which makes photovoltaic systems especially useful?

Melissa Norris

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A single gene mutation results from? Download png

Donald Ward

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The terms commensalism and mutualism have the same meaning and are interchangeable. Please select the best answer from the choices providedTF

Karen Wright

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In gravitropism, in which direction do roots grow?

Kaitlin Dean

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A good conclusion restates the hypothesis so that the reader

Kristi Hammond

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What was one of the goals of the headright system? A. to give more power to the governor of a colony B. to centralize the government of a colony C. to increase the population of a colony D. to make a colony more democratic

Megan Page

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Prophage occurs when

Whitney Matthews

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True or false: the formation of the moon may have caused the Paleozoic extinction

Heather Maxwell

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Lamarck wrote an important book talking about A. the old age of Earth. B. how organisms could change. C. the movement of the continents. D. that fossils were extinct organisms.

Ronald Miller

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Life-forms that existed during the Paleozoic Era included ____. a. fish b. trilobites c. reptiles d. all of the above

Karen Wright

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What is stored in carbon bonds

Samantha Barber

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He term diploë refers to the ________. the term diploë refers to the ________. two types of marrow found within most bones internal layer of spongy bone in flat bones double-layered nature of the connective tissue covering the bone fact that most bones are formed of two types of bone tiss

Megan Page

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As per the rules of binomial nomenclature, which species name is written correctly? A) pelecinus polyturator B) Pelecinus polyturator C) Pelecinus polyturator

William Cain

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Unlike amphibians, reptiles A. have lungs to oxygenate blood. B. use single-loop circulatory system. C. have a closed circulation system in which blood circulates entirely within blood vessels. D. have ventricles that are further divided to lessen mixing of oxygen-rich and oxygen-poor blood.

Melissa Norris

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Drag the terms to their correct locations in this concept map about cell division. Gametes, meiosis, mitosis, somatic cells, asexual cells, Sexual cells

Karen Wright

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Is there a particular side of the amoeba that is always the front of the organism? Explain.

Curtis Rhodes

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Secondary succession occurs in ecosystems without soil. T or F

Ross Pratt

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Which class of organic compounds stores energy as fat? nucleic acids lipids proteins carbohydrates

Deborah Edwards

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Energy that is not passed on from one trophic level to the next is _______. a. lost as heat b. returned to the sun c. destroyed d. all of the above

Jeremy Wood

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Carbon dioxide cannot diffuse into the blood from an animal's cells unless the blood has a _____ concentration of carbon dioxide

Daniel King

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The main difference between ponds and lakes is that ponds _______. a. are inland bodies of water b. do not develop self-contained ecosystems c. are smaller than lakes d. have easily observed currents

Eric Morgan

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How are finches in the Galápagos Islands a good example of adaptation? A. Each species has a special beak adaptation. B. There is very little competition for food. C. Finches are very good at learning. D. There is only one species of finch on those islands. So which one would be the answer? Does anyone know? I need help ASAP Pleaseee!!!! And Thank you

Daniel King

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Bone and blood cells are considered _____. specialized cells tissues organs prokaryotic

Kevin Sutter

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_____________ and __________ are the components of ribosomes. A) DNA and RNA B) RNA and protein C) Ribose and amino acids D) Microfilaments and microtubules

Rodney Fox

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Most metallic ores are produced by which two types of processes

Samantha Barber

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Which one of the following statements is true regarding voluntary and involuntary responses? A. Voluntary responses control the activity of glands. B. Voluntary responses originate in the sensory receptors. C. Involuntary responses are part of the autonomic system. D. Involuntary responses may include the spinal cord and not the brain.

Blair Lewis

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Explain how human activities can intensify, or even cause a landslide

Annie Barnes

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Unlike ionic bonds, covalent bonds involve the a. development of positively and negatively charged ions. b. sharing of electrons between atoms. c. gain of one or more electrons by one atom from another. d. loss of one or more electrons from one atom to another.machinery

Jeffrey Rodriguez

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Neurons are not connected; they transmit signals across a space called a _____. dendrite axon synapse impulse

Roger Moore

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Which group makes up the greatest total mass of marine life?

Eric Morgan

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What organelle controls information in the cell? ribosome nucleus nuclear envelope membrane bilayer

Kevin Sutter

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In what type of star would helium be converted to carbon as the final stage of fusion?

Ramon Kelly

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An organism’s scientific name consists of: A) its class name and its family name. B) its kingdom name and its phylum name. C) Its genus name and its species name. D) its phylum name and its species name.

Ralph Lopez

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Cells produced by the root and shoot tip meristems become the tissues of the plant body. primary secondary

Ralph Lopez

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What type of questions cannot be solved by scientific method? A. Questions about ethics B. Questions about extinction species C. Questions about the deep ocean D. Questions about the past

Heather Maxwell

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Which describes step three of a muscle contraction? A: The sarcomere lengthens. B: The space between sarcomeres increases. C: Actin and myosin are partially overlapped. D: Actin and myosin are completely overlapped.

William Cain

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What are steroid hormones most similar to?

Tara Andrews

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Which of the following plant adaptations protects savanna plants from grazers? a. Long roots B. Growing low to the ground C. Water storage D. Bitter taste

Ross Pratt

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Which statement describes the independent variable? A.It is measured and recorded as data. B.It is unchanged in the experiment. C.It is also called the responding variable. D.It is also called the manipulated variable.

Tara Andrews

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Which of the following statements is correct in the context of phyletic gradualism?

Caroline Campbell

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Describe the role of photosynthetic organisms, such as plants, in converting the energy of light to energy that can be used by all living things including the photosynthesizers themselves. Be sure to follow the flow of energy from the sun to living things.

Kathy Robinson

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Magma that forces across rock layers hardens into a a. sill. b. volcanic neck. c. dike. d. batholith.

Brandon Scott

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Why is the scientific method described as nonlinear a.The steps of the scientific method are repeated in a cycle. b.Scientists often repeat one or more steps several times. c.Sometimes scientists forget to perform some of the steps. d.The steps can be performed only once but in any order.

Carlton Burgess

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Linnaean classification involves a. only large, general categories of organisms. b. only small, specific categories of organisms. c. both large and small categories of organisms. d. no categories of organisms.

Kathy Robinson

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