Assignment Measuring Basil Area: Record all the measurements. 1) Measure the circumference of the tree at 1.3 meters up by wrapping the measuring tape around the trunk of the tree.

2) Calculate the radius from the circumference by dividing the circumference by 2TT.

3) Calculate the basal area by squaring the radius and multiplying TT (Basal Area=TT r2).

This question is worth 100 points please don’t guess let it be right please! (Fyi this is for Environmental science)

im not in connections yet but i might can you some questions. what grade are you in?

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!

bru what tyep of qus is dis