Darwin visited the galapagos islands several times. during his trips, he observed some differences in the finches living on each of the islands. he noted that the finches had many traits in common; however, each had a different beak. some beaks were short, some long. some beaks looked straight, while others curved. darwin believed that each species of finch was related but had developed some special beak adaptations. he suggested that the finches had developed these adaptations because there were different food sources on each island. the curved beaked finches ate berries. the straight beaked finches burrowed for worms. the short beaked finch ate only seeds. each beak was well suited for the specific food source.
what is the main idea of this paragraph?
darwin likes finches.
finches are picky eaters.
the galapagos islands are a nice place to visit.
darwin believed the shape of the finch's beak was related to the food it ate.
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question 3(multiple choice worth 2 points)
a genotype describes
what an individual looks like
how an individual will pass on traits
how long an individual will live
the genetic make up of an individual

First: Darwin believed the shape of the finches beak was directly related to its food source.

Second: A genotype decides the genetic makeup of an individual, (green eyes, blue eyes, brown eyes, etc.)

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!

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.