Biology

Explain why coloured water moved up the stalks
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Compare metamorphic rock and intrusive igneous rock in terms of how and where they form. Then compare sedimentary rock and extrusive igneous rock in terms of how and where they form.
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What are the positive effect of technology
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PLEASE HELP TODAYS MY LAT DAY I NEES THIS GRADEWhat are the weaknesses or inaccuracies in the model the student created?
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Which best defines the population growth rate? A. a. (birth rate + immigration) - (death rate + emigration)B.(birth rate + fertility rate) - (death rate )C.birth rate - death rate
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P450 encodes an enzyme that detoxifies insecticides. Abc8 encodes a transporter protein thatpumps insecticides out of cells. Cps encodes an external structural protein located in theexoskeleton that greatly reduces the absorption of insecticides. Based on this information andthe data in Figure 1, explain how a deletion of both P450 and Abc8 results in lower survival inbedbugs compared with a deletion of Cps only.
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PLEASE HELP!!!!Look at the diagram below that shows the connection between the circulatory and the respiratory systems. Use the diagram to explain why pulse and breathing rates change when you exercise.
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The difference between a personal right and a political right considers __________.A. the political impact and intent of the actionB. the economic impact and intent of the actionC. whether or not somebody witnessed or knows about the actionD. none of these are the difference between a personal right and a political right
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What events occur during high tide
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Think about what you know about the following organisms. Do they give off carbon dioxide? Yes or no in the chart
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Which mechanism listed below does NOT cause evolution to occur?Artificial SelectionGenetic DriftReproductionGene flowMutations
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Sex chromosome abnormalities are more common than autosomal abnormalities because:A.the autosome is more stableB.the sex chromosome is more susceptible to mutationC.autosomal defects are lethal to the fetus
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Plzzzzzz help me with it State the role of pancreatic lipase
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What is the answer pls
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How does nitrogen get into the air
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2. What is an example of fast and dramatic erosion?
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Individuals of a certain breed of sheep can have either white or blackwool, depending on which versions of a specific gene they inheritedfrom their parents. What are these alternative forms of a gene called?A.genotypesB.AllelesC.phenotypesD.characters
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Review Map D. Predict future weather for New Orleans, LA. What weather might occur there? What is the cause of this weather? Predict the future weather for Washington, DC. What is the cause of this weather?
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SECONG PART TO THE WORKSHEET HERE!!!!!13. The different functions of the skeletal system include all of the following EXCEPT: *a) Forms blood cellsb) Protects internal organsc) Stores hormonesd) Assists movement14. Which type(s) of muscle can contract without stimulation from the nervous system? *a) skeletal onlyb) skeletal and smoothc) smooth and cardiacd) cardiac only15. Which division of the nervous system speeds up your heart rate? *a) somaticb) autonomicc) centrald) brain and spinal cord16. True or false. The pregnancy timeline begins on the first day of a women's menstrual cycle. *a) Trueb) False17. Which of the following are events following fertilization? (Check all that apply. There may be more than one answer). *a) Embryo develops into the fetusb) Zygote cell rapidly dividesc) Embryo embeds into uterine walld) Zygote travels down the fallopian tube toward the uterus18. Human development occurs in a series of stages, or processes. Which of the following best describes the key events that occur during gastrulation? *a) The blastocyst attaches to the wall of the uterus and cells begin differentiating.b) Cells migrate from the ectoderm to form the mesoderm; resulting resulting in the formation of three cell layers.c) A sperm and egg fuse producing a fertilized egg.d) Mesodermal tissue differentiates into the notochord and the nervous system develops.19. How do endocrine glands send messages to other organs? (Select the best answer.) *a) They release impulses that travel in the bloodb) They release hormones that travel in the bloodc) They release insulin that travels in the bloodd) They release action potentials that travel in the blood20. All of the following are true about the integumentary system EXCEPT: *a) It forms vitamin Eb) It is a barrier against infection and injuryc) It removes wastesd) It gathers information and regulates body temperature21. The brain forms in which stage / trimester? *a) Blastula stageb) Trimester 1c) Trimester 2d) Trimester 3
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How do bacteria and viruses spread from one person to another?A. Sneezing and coughing.B. Contaminated food or water.C. Contact with other people's blood or body fluids.d. All of the above.
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What neural and hormonal mechanisms control digestion?
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Read the scenario below and answer the question that follows.Paul watches a lot of violent television. When he goes to school, he is usually anxious because he believes that the otherstudents may attack him. His constant agitation prevents him from concentrating in class.Which of the following effects is most likely responsible for Paul's behavior?A. aggressor effectB. victim effectC. appetite effectD. hostile expectation bias
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When a person breathes, the nose and mouth take in oxygen-rich air, and they expel oxygen-poor air. Which statement explains the change inoxygen concentration of the inspired air?A The oxygen concentration decreases gradually as it passes through all organs of the respiratory system,CB. The oxygen concentration decreases gradually as it passes through all the airways of the lungs,OC. The oxygen concentration decreases quickly in the nose and mouth, and then remains constant as it passes through other organs ofthe respiratory system,CD. The oxygen concentration decreases only when the air reaches the alveoli, which are the terminal branches of the respiratory system,
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the plants in. are true breeding
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