Water is less dense as a solid than as a liquid. How does this property typically affect a lake ecosystem in freezing temperatures? When the lake is frozen, fish still have access to liquid water for oxygen and swimming as well as access to food on the bottom of the lake.

When the lake is frozen, fish still have access to liquid water for oxygen and swimming but no longer have access to food on the bottom of the lake.

When the lake is frozen, fish no longer have access to liquid water for oxygen and swimming but do have access to food on the bottom of the lake.

When the lake is frozen, fish no longer have access to liquid water for oxygen and swimming and no longer have access to food on the bottom of the lake.

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explanation:

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producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!

the elements of art are the visual tools that the artist uses to create a composition. these are line, shape, color, value, form, texture, and space.

the principles of art and design are balance, contrast, emphasis, movement, pattern, rhythm, and unity/variety.