Numerade

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Part A (1 of 5) 2 tries left Which of the following options lists the correct sequence of the appearance of the four major groups of plants in the fossil record, from most ancestral to most recent? bryophytes, seedless vascular plants, gymnosperms, angiosperms bryophytes, gymnosperms, seedless vascular plants, angiosperms bryophytes, seedless vascular plants, angiosperms, gymnosperms seedless vascular plants, bryophytes, gymnosperms, angiosperms

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Which T cell count is used to mark the formation of Acquired Immune Deficiency Syndrome (AIDS)? Less than 200 T cells/mm3 T cell counts aren't involved in the determine for AIDs 200-500 T cells/mm3 greater than 500 T cells/mm3

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Exothermic Changes: the system loses heat to the surroundings. The heat gains heat from by the surroundings increases the freedom of motion of the particles which increases the entropy of the suroundings. Therefore qsys ____________ 0, qsurr ____________ 0, and ΔSsurr ____________ 0. Endothermic Changes: the system ____________ the surroundings. This heat ____________ by the surroundings ____________ the freedom of motion of the particles which ____________ the entropy of the suroundings. Therefore qsys ____________ 0, qsurr ____________ 0, and ΔSsurr ____________ 0.

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A block is dragged at constant speed in a straight-line path across a level surface by a force of 200 Newton. How big is the force of friction between the block and the surface?a) 200 Newtonb) less than 200 Newton Your Pull Frictionc) more than 200 Newton 200 N d) need more information to say

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Describe what would happen to the surface temperature of a star if its radius increased by 3 times, but there was no change in luminosity. By what factor would the temperature of the star change?

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How many protons, neutrons and electrons are there in a neutral atom of phosphorus-32? protons: neutrons:

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differ? Liberal Bank offers loans at various interest rates, depending on the nature of the loan. Beth and Carl both want to borrow $50,000 as a personal loan from the bank. Beth works for a small start-up company, and her annual earnings depend on how the company performs that year. Carl works for a long-established company. He receives a stable salary, with a bonus if the company performs well during the year. Assume that the duration and the costs of making both loans are the same. If all else is constant, the bank would most likely charge a higher interest rate to

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Find the limit (if it exists). (If an answer does not exist, enter DNE.) \\ $\lim_{x \to -2} \frac{x^3 + 8}{x + 2}$

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In the Seligman & Meier study why did some of the dogs fail to escape shock in phase 2 of the study? they were not given positive reinforcement for doing so their motor skills were affected by alcohol they had learned in phase 1 that their behavior had no affect on whether or not they got shocked they had learned in phase 1 that struggling made the shock worse

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For firms in perfectly competitive markets, long-run economic profits are the market if profits are negative and because firms will the market if profits are positive.

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willie s.