Master Biology with Fun Quizzes & Brain Teasers!

A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its velocity is 4 m/s. But 6 seconds later, at the bottom of the slope, its velocity is 46 m/s. What is its average accelerationHurry
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QUICKKKK ILL MARK BRANLIEST!!!!
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a two-layered arrangement of phosphate and lipid molecules that form a cell membrane, the hydrophobic lipid ends facing inward and the hydrophilic phosphate ends facing outward.concentration gradientpassive transportprokaryotic cellphospholipid bilayer
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Which statements accurately describe osmosis? Check all that apply.Water moves from areas of high concentration to areas of low concentration.Water moves from areas of low concentration to areas of high concentration.Too much water in a cell can cause it to shrink.Too much water in a cell can cause it to swell.Too little water in a cell can cause it to shrink.Too little water in a cell can cause it to swell.
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Matter is moved through the Earth by the interaction of Earths systems.true or false.
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Why is it important to understand how different body systems interact when developing a training plan?
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Do multicellular organisms GROW? Do multicellular organisms DEVELOP
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What are the GLOBAL EFFECTS OF El Nio?
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Building of dams and interstate highways are examples ofHuman Environment InteractionLocationPlaceRegionMovement
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10 POINS IM SUPOSED TO TURN THIS IN TODAY!!!THIS IS THE ONLY ONE I NEED HELP ON PLZ HELP ME!!!
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The hairs on Xanders arms just started lying flat against his skin. Which is most likely his internal body temperature? 35C 36C 37.5C 38.5C
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A base is a substance that
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The percentage of a hunter-gatherer societys diet provided by hunting versus gathering was mostly determined by _______.a.the climateb.the types of preyc.hunting skilld.the size of the human population
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How do scientists find the epicenter of an earthquake?
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1. A cell does not need to use energy duringO active transportexocytosisO diffusionO endocytosis
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Living cells are classed as either prokaryotic or eukaryotic. Which of the following characteristic(s) identify both cell types, eukaryotic cells and prokaryotic cells? Select all that apply. have a nucleus contain cytoplasm comprise most multi-celled organisms mostly single-celled organisms have membrane-bound organelles are the smallest unit of living matter are produced by division of another cell contain DNA
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Becky is experiencing chronic pain from a medical condition that cannot be treated. In order to minimize the long-term emotional response to her pain, she would choose a modification of her a. Parietal cortex. b. Prefrontal cortex. c. Primary somatosensory cortex. d. Dorsal lateral thalamus. e. Posterior cingulate cortex
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where does the energy for animals needed to live come from?
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How does the Gulf Stream affect weather in the United States?A. It brings cooler temperatures from the poles. B. It brings cooler temperatures from the tropics. C. The warm surface currents help create storms and fog. D. The cool surface currents produce cooler weather and fog.
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The majority of earth is covered with water. Water takes longer to heat up and cool down which has an impact on the air temperature. The slow change in water temperature is due to waters
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what do both plant cells and animals cells have in common?
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Which type of information can scientists collect using a seismograph?a) slight shifts in the inclination of a surfaceb) pollution levels in the air after a volcanic eruptionc) vibrations occurring inside Earthd) temperatures of molten rock inside Earth
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which could describe the properties of sedimentary rock?
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in the cell, enzymes act as what?
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