Master Biology with Fun Quizzes & Brain Teasers!

Two scientists traveled to a remote island in the ocean. While on the island, they discovered several animals never before seen. Thescientists identified and recorded several characteristics of each of the different animals. Those data are given in the table below.animals with,a tailAnimal Number of legs Tail Food HabitatA4yes meat mountain)4yes plants jungle6yes plants jungleno plantscavesBox 1B05CEFanimals withfewer than5 legsThe scientists needed this information in order to group the organisms. One way to do this is to create a classification system. In theclassification system shown in the figure below, which box at the bottom will have no animals in it? (Note: be sure to view all theinformation shown above.)2 animals68 M8Box 2no meatno meatanimals withno tailall animalswaterwateranimals withmore than5 legsanimals with,a tailBox 34 animalsanimals withno tailBox 4
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What is involved in a musclecontraction?A. Myofibrils in the muscle shorten and lengthen to makethe muscle contract and extend.B. Actin and myosin come in and out of the cell to make itthicker or thinner which changes its length.C. The gap junctions between the cells pull them closertogether which shortens the muscle.D. The extra nuclei trigger nerves to stiffen the musclesand make them shorter.
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certain blood vessels are lined by layers of tissue that ensure the vessels can expand in contractexercise is one known factor that can improve the function of these layers. Which of thefollowing is regulated because certain blood vessels are able to expand and contract?a. the removal of foreign substances from bloodb. the shape and size of red and white blood cellsc. the flow of blood from the heart to body tissuesd. the exchange of gases between blood and the air
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Determine the pattern of evolution being described:A population of mollusks are living in a stable ecosystem in the ocean. A rapid dropin sea level causes the formation of a lake, which isolates a group of mollusks from therest. This quick environmental change causes rapid evolutionary change. Due to thenew small population, genetic drift occurs, and mollusks with larger shells rapidlybecome the most common trait.
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what is the purpose of fit check technique for masks? essay question
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The hypothalamus gland produces what hormone?ThyroxinAdrenalinOxytocinNone of the above
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Uncle Carlos and Abbey explain that Tony may have inherited a mutant gene for Factor VIII and this may be causing his nosebleeds. Tony is concerned. He asks, "Am |a mutant? What is a gene? How can a gene cause nosebleeds?" Abbey is studying to be a nurse and has just learned about DNA, genes, and gene expression.A gene is a segment of DNA that provides the instructions for making a protein. Different versions of a gene can result in different versions of the protein. Differentversions of the protein can result in different characteristics. This chart shows how different versions of the gene for the clotting protein, Factor VIII, can result in normalhealth or hemophilia. I need help answering these question.
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In feeding relationship models like food chains and food webs, the arrow points in the direction of Group of answer choiceswho got eatenwho gives energyproducersenergy flow
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A patient comes into your emergency room after a motorcycle accident. Their leg is bent at an angle it should not be able to bend. After a few tests, it is clear that the tissue connecting the femur to the kneecap is torn. What type of surgery will the patient need?A. Tendon surgeryB. Ligament surgeryC. Neuromuscular surgeryD. Quadriceps muscle surgery
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1. Describe the differences between prokaryotes and eukaryotes and give an example of each?
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Which of the following is a reason for creating hybrid plants?yield more cropsincrease growing seasondecrease resistance to herbicidesreduce amount of manual labor
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Which of the following reactions forms part of glycolysis Statement 1 ATP donates a phosphate group to glucose. Statement 2: Triose phosphate is oxidized to pyruvate. Statement 3: A six-carbon sugar bisphosphate splits into two three-carbon sugar phosphates
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Which of the following invloves the combination of two haploid sex cells to create an individual ?
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What's the primary reason that ATP is transformed into glucose during the light-independent phase of photosynthesis?Glucose is easier to produce than ATP.Glucose has more electrons than ATP.Glucose can store energy more efficiently than ATP.Glucose has more phosphate groups than ATP.
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What is the monomer that makes up a polymer of protein.
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Pigeon breeders prize certain looks of their pigeons. They know that pairing certain pigeons results in offspring that exemplify the looks of their parents. Which of Darwins four observations applies to this example?Observation 1Observation 2Observation 3Observation 4
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May I please get help with this question.You can pick out any cell in the human body, then state what are some advantages to being a multicellular organism as opposed to a unicellular organism
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What does a pyramid of biomass represent?A) AmouC) Percentage of energy that's passed through each trophic levelD) Range of food webs found in one trophic level
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PBS Evolution: Great Transformations short movie1.If the worlds history were compressed into one hour, how long have humans been here?Microbes. single-celled organisms2.How long ago did mammals first appear on earth? Mammals first appeared about 200 million years ago3.What type of animal did the skull that Dr. Gingrich discovered resemble? Dr. Gingrich discovered resembled a whale4.What did Whale Valley used to be?Whale valley is a 5.What unusual feature did they find at the end of the early tetrapods limbs? 6.How long ago did animals first appear on Earth? 7.When the mouse eyeless gene was implanted into the fruit flies, what happened? 8.How would walking on two legs be an advantage? 9.What modifications does the human skeleton have? Humans has the same transformation as other animals even though humans are special. 10.Your summary/reflection:
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Not only in science, but in life, it is important to be objective. What does it mean to be objective?A) to evaluate something based on evidence and not beliefs or opinionsB) to choose the most likely explanation for a phenomenonC) to judge something based on your own beliefsD) to make a decision based on the views of other scientists
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Can you please explain more about vegetation and soil
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Match the term with its description.AxonDendriteNerveNeuronNeurotransmitterFibers transmit impulses through the brain and spinal cord to muscles and organs.Chemicals released from axon terminals that transfer impulses from between nerve fibers.Short, branched extension of a nerve cell that receives and transmits impulses. Specialized cells that join to create nerves.Long, thread like part of a nerve cell that conducts impulses from cell to cell
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A farmer is experiencing an approximate 5% loss of his crops due to pests. According to IPM what should he do?
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Which hormone from the pituitary gland is responsible for increased estrogen secretion and ovulation in females and testosterone secretion in males?OOOOACTHFSHLHTSH
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