From the outside, a whale's flippers appear to be flat, solid objects. However, when scientists observed the
bones within whale flippers they found bones like the
ones shown in the diagram.
Observing the bones made scientists ask more
questions about whale flippers. Scientists then used
the theory of evolution to understand how whales are
related to land mammals. They surmised that over
millions of years, the land mammals slowly adapted to
living near the sea and then living in the sea, where
solid flippers are more useful than fingers.
What part of the scientific cycle was used to
understand why whales have finger bones?
O experiments
observation
O explanation
O facts

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.

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!

whats the answer to your question?