Answers created by Asaf B.

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• What are two types of scientific models?
  
• What units can measure pressure?
  
• Question #8dba9
  
• While on vacation, Sandra wants to buy 2 wallets. There are 7 different patterns she can choose from. In how many ways can Sandra choose 2 different wallets?
  
• Question #62177
  
• Please how do I round 300,482 to the nearest thousand?
  
• Why are ocean food chains longer than land food chains?
  
• Question #d35aa
  
• If a purple flower with the genotype #Pp # (P = purple ; p = white) self-pollinates, what is the ratio of purple offspring to white offspring?
  
• A bird flies from the bottom of a canyon that is #82 3/10#below sea level to a nest #723 1/2# feet above sea level What is the difference in elevation between the bottom of the canyon and the bird's nest?
  
• A flower has 12 parts. Is it a dicot or a monocot?
  
• What are species that migrate or are accidentally introduced into an ecosystem called?
  
• Question #21fea
  
• You get a mosquito bite. Is this event dependent or independent of the mosquito landing on your arm?
  
• How do you change #34/3# to a mixed number?
  
• In what ways are club mosses, horsetails, and ferns similar in their reproductive processes?
  
• How long can a tortoise lay on its back?
  
• Question #0325b
  
• Question #a7c2d
  
• If a bird that eats grasshoppers moved to the prairie, how would this move affect the natural selection for grasshopper colour ( brown and green ) in wet years? in drought years?
  
• Question #7acdd
  
• How many food chains make up the food web?
  
• What is the difference between a food chain, a food web, and an energy pyramid?
  
• Question #16c23
  
• Most plants incorporate carbon dioxide into sugar by means of a cycle of reactions called the?
  
• Question #6a34e
  
• Why are the front legs of a frog good for climbing?
  
• Question #7fba0
  
• Robert sells 3 packages of cookie dough and 8 packages of pie dough for $35. Phil sells 6 packages of cookie dough and 6 packages of pie dough for $45. How much does each type of dough cost?
  
• Question #76c53
  
• Question #3c669
  
• How tall were the first land based plants?
  
• Question #473eb
  
• Question #fcd0d
  
• How does the temperature of the environment affect the level of activity of an amphibian?
  
• An animal cell lacking oligosaccharides on the external surface of its plasma would likely be impaired in which function?
  
• Why aren't plants black?
  
• Question #59aae