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Biology

Which of the following statements about the tundra is not true? a. Tundra means “treeless land.” b. Plants and animals in the tundra have adapted to the extreme climate. c. Temperatures in the tundra range from extreme highs to extreme lows. d. The alpine tundra can be found on mountaintops.

Mindee Nelson

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Skin color, fur color, and height are examples of which inheritance pattern?

Kaitlin Dean

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Changes in the trilobite exoskeleton can be attributed to ____..

Theresa Perry

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Which best illustrates the result of the process of meiosis? A pea plant has the same flower color as its parent plants. A daughter looks different from both her mother and her father. A cheetah cub has very similar fur to its mother. A Labrador puppy looks exactly like its father.

Ross Pratt

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Whales have what seem like remnants of a pelvis and femur, as shown here. What are these structures an example of?

Rodney Fox

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Which hormone is responsible for regulating the sleep cycle in your body? Select one of the options below as your answer: A. Melanotropin B. Melatonin C. Adrenaline

Timothy Norman

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Which of the following are items that are a threat to biodiversity? A.pollution and succession B.habitat loss and predation C.poaching and habitat loss D.succession and poaching Plzzz help!!!!!

Ashley Howard

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Which process drives Darwin’s theory of evolution?

Heather Maxwell

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The product of the p53 gene _____. the product of the p53 gene _____. slows down the rate of dna replication by interfering with the binding of dna polymerase

Ashley Howard

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Which scientist proposed a link between contaminated water and cholera A.Pasteur B. curie C. salk D.koch

Samantha Barber

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Genetic drift tends to occur in populations that (1 point)are very large. are small. are formed from new species. have unchanging allele frequencies

Ramon Kelly

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Why do naturalists suggest that we plant more trees? Plants use CO2 but do not release any, thus maintaining a balance of CO2 in the atomsphere. Plants release CO2 through respiration and use it for photosynthesis, thus decreasing the amount of CO2 and maintaining its balance in the atmosphere. Plants do not use any CO2, thus maintaining low levels of CO2 and balancing its level in the atmosphere.

Craig Stewart

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Scientific evidence is most likely to be consistent if it is based on data from A) random samples B) uncontrolled experiments C) biased experimental designs D) small data samples

Annie Barnes

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Which object reflects light with the longest wavelength? a yellow book a violet flower a blue paper a green leaf

Caroline Campbell

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What three characteristics are used to classify prokaryotes?

Dana Keller

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Matter is moved through the Earth by the interaction of Earth’s systems. True or False

Craig Stewart

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During development, an embryo is embedded in the a. vagina b. cervix c. endometrium d. ovary

Ronald Miller

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Which of the following statements is most accurate concerning the founder effect? A. It increases genetic variation B. It is not an example of genetic drift C. It results when a small population breakers away from a larger one D. It only occurs amongst the amish

Mindee Nelson

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Which of the following is not characteristic of marshes? a. shallow water b. frequent floods c. acidic groundwater d. herbaceous plants

Ralph Lopez

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Which class of macromolecules is not organized in repeating units of monomers

Carlton Burgess

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When two atoms combine by sharing electrons, it is a(n) _____ bond. a. Ionic b. Covalent

Chelsea Hayes

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Cretinism may form as a consequence of a severe deficiency of

Mindee Nelson

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Which provides long-term energy storage? a. Glycogen b. Glucagon c. Glucose d. Cellulose

Samantha Barber

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Which is NOT a shared characteristic of all chordates? A ventral, solid nerve cord A notochord Pharyngeal slits

Justin Parker

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Why did dna technology lead to more use of cladistics?a. it showed that the linnaean system was the most accurate.b. it changed ideas about which animals were closely related.c. it proved that eukaryotes formed from endosymbiosis.d. it showed that there are three domains and six kingdoms?

Annie Barnes

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Which is not a characteristic of the zones of a deciduous forest? a. herb zone - short plants b. tree stratum zone - trees between 60-100 feet tall c. small tree and sapling zone - young and short trees d. ground zone - grasses

Zach Chandler

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Why are cane toads in Australia considered an invasive species rather than simply nonnative?

Ramon Kelly

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Alcohol is considered a ________ because it tends to suppress central nervous system activity.

Caroline Campbell

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Sedimentation accumulation found in bodies of water can be the result of _______. a. fertilizer runoff b. pesticides and herbicides c. erosion from agricultural practices d. all of the above Please select the best answer from the choices provided A B C D

Jeremy Wood

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Which adaptation makes bipedalism possible? A.opposable digits B.large brain C.foramen magnum in back of skull D.elvis rotated inward

Brandon Scott

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Matter can recycle through the biosphere because: A) matter is passed out of the body as waste. B) matter is assembled into chemical compounds. C) biological systems do not use up matter, they transform it. D) biological systems use only carbon, oxygen, hydrogen and nitrogen

Ashley Howard

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What is true about dissimilar organisms such as a cow and a yeast? A. They are not related at all. B. Their degree of relatedness cannot be evaluated. C. Their degree of relatedness can be estimated from their genes. D. They can interbreed and thus are the same species.

Mindee Nelson

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When new clay sediment is deposited on top of old beach material, it's known as?

Donald Ward

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Which of the following planets rotates in a reclining position? Jupiter Mercury Saturn Uranus

Brandon Scott

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When the body receives stimuli, which structure typically processes the stimuli? sensory nerve cell motor nerve cell brain meninges

Kevin Sutter

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Common law refers to laws determined through A due process. B precedent. C the rule of law. D the separation of powers.

Curtis Rhodes

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Which best summarizes the findings of griffith?

Jeremy Wood

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Why was natural selection an important contribution to the theory of evolution?

Amanda Johnson

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If two organisms are in the same clade, what can you predict about their relationship?. . . . A.They are not closely related. . .B. They share a common ancestor.. . C.They compete for resources.. .D. One organism evolved into the other organism.

Ross Pratt

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Which of the following accurately describes the life cycle of most gymnosperms? a. Seed cones contain ovules. b. Germinated seeds are haploid. c. A pollen tube is used to prevent the fertilization process. d. Pollen grains undergo meiosis to form egg cells.

Ramon Kelly

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

Brandon Scott

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

Dana Keller

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Why do some plants in the tundra retain their dead leaves instead of shedding them? a. The plants absorb the nutrients in the dead leaves. b. The dead leaves insulate new buds from the cold. c. The dead leaves protect them from predatory insects. d. The dead leaves help them survive long periods of drought.

Brandon Scott

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What distinguishes the savanna and grassland biomes?the aswer is a

Eric Morgan

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Changes in the genetic make-up are normally_____to the organism. -irrelevant -helpful -harmful

Timothy Norman

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A patient is in need of hydration. Which type of solution are the patient’s cells most likely in? hypotonic hypertonic isotonic osmotic

Kristi Hammond

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Which is true of solar, wind, and geothermal energy

Karen Wright

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Wind blowing sediment against rock or land area, or sandblasting is called a. abrasion c. deflation b. deposits d. picking up

Jeremy Wood

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One of the monosaccharides is a building block of a plant's cell wall. It is A- glucose B- maltose C- mannose D- sucrose

Kristi Hammond

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