Which of the following situations accurately describes a difference between a food chain and a food web?

a .a carnivore receives 10 percent of the energy from its prey in a food web.
b. a carnivore eats both a rabbit and a mouse in a food web.
c. a rabbit eats grass in a food chain.
d. a rabbit receives 90 percent of the energy from the grass it eats in a food chain.

the pangaea theory supports the theory of plate tectonics because

it is based on the idea that there were several land masses when earth was first created.

it is based on the idea that all the present continents were one supercontinent.

it does not require scientists to support the notion that earth’s plates can move.

one day, earth will have one large land mass again.

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m

98 points you will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. before you conduct your experiment, you need to form a hypothesis. a hypothesis is a prediction of what you think will happen in the experiment. the hypothesis is a statement that describes “if” a certain set of circumstances are present “then” there will be a specific result that will occur. record your hypothesis here: record the results from step one of the experiment (dropping the objects in the air): first trial: second trial: third trial: record the results from step two of the experiment (dropping the objects in a vacuum): first trial: second trial: third trial: did the experiment support your hypothesis? using the data from your experiment, describe why you believe your hypothesis was either proven or disproven. what forces were acting on the objects dropped in the air? what force was acting on the objects dropped in the vacuum? part two: comparing forces choose two forces and compare and contrast these forces. you must provide two ways that they are alike and two ways that they are different. you may make a list, write in paragraph form, or make a chart. choose two forces and compare and contrast these forces. these must be different forces than used in the prior question. provide two ways that they are similar and two ways that they are different. you may make a list, write it out, or make a chart.

Describe the properties of sodium, chlorine, and sodium chloride