During a biology lab practical, students were required to identify a metal by its density. all the metals were painted green so students could not use color as a factor to eliminate choices. carl computed the density of his sample metal to be 8.9 g/cm3. since carl's lab grade depended on his accuracy and correct identification of the sample metal, he was unsure which sample he had, nickel or copper. what would you tell carl about his density measurement? a) disregard any decimal points and use only whole numbers. b) 8.9 is closer to to 8.91 than 8.96 so carl should chose nickel. c) re-do the measurements, several times, and take the average density before making a decision. d) when using water displacement to find the volume, be sure to read the meniscus to the nearest 0.01 ml.

Select all the correct answers. lactobacillus is a bacteria that live inside humans. these bacteria live on the nutrients from our bodies. they to keep our gut clean and healthy. s. typhi is a bacteria that enter our bodies through contaminated food. this bacteria causes infections in the body. based on this information, which two statements about the association between these bacteria and humans are true? a. lactobacillus shares a parasitic relationship with humans. b. s .typhi shares a parasitic relationship with humans. c. both lactobacillus and s. typhi share a parasitic relationship with humans. d. both lactobacillus and s. typhi share a mutualistic relationship with humans. e. lactobacillus shares a mutualistic relationship with humans, and s. typhi shares a parasitic relationship multiply chrse

Imagine that certain laws of physics could be ignored and you were able to travel vast distances in moments. now imagine that you traveled to an earth-like planet located light-years away that is known to support life. think about what you’ve learned in this unit and make an argument for what you think would be the dominant type of life form on this planet. consider whether a notochord is required for an organism to manipulate its environment and become a dominant creature.

“in 1492 columbus sailed the ocean blue” is an example of: a)explicit memory b) procedural memory c) semantic memory d)episodic memory