Many biotic factors affect individuals in a population. Which of the following is an example of an organism being directly affected by a biotic factor? A.
A squirrel has water and a nest but cannot find a mate

B.
A chipmunk hibernates when the temperature gets colder.

C.
A plant is located in a room with no light source.

D.
A maple tree growing on a hillside washed away in a flood.

If you could drill a hole straight to the center of the earth, and keep track of what the hole is going through, youwould find: a) you would go through one sort of material, and then a different, denser material, and then a still-different, still-denser material, because the planet is made of concentric layers, sort of like an onion. b) you would go through one sort of material all the way to the center, because the planet is all mixed up. c) if your hole started at the north pole, you would go through different layers of different materials, but ifyour hole started at the equator, you would go through one sort of material all the way to the center. d) if your hole started at the equator, you would go through different layers of different materials, but if yourhole started at the north pole, you would go through one sort of material all the way to the center. e) you would strike diet pepsi when you got to the center.

Which characteristics of temperature and salinity have the greatest influence on the movement of deep-ocean currentsa. warm and low salinityb. cold and high salinityc. cold and low salinityd. warm and high salinity

Select the correct answer. look at this nineteenth-century illustration of london. which explanation best relates this illustration to changes in britain in the 1800s? a. factory workers in cities lost their livelihood because of the lack of housingb. industrialization narrowed the inccome gap between landowners and workers. c.the migration of workers from rural to urban areas resulted in overcrowded citiesd. the spread of railways allowed farmers to sell produce far from where it was grown.