Jack's science teacher asked the class to observe the organisms in a space of 1 m2 outdoors for 10 minutes each day for a week. Before beginning his
observations, Jack needed to mark off the space.
Which of the following procedures is likely to be the most accurate?
O A. Jack will use a meter stick to measure a space of 1 m x 1 m.
O B. Jack will use a 12-inch ruler to measure a space of 1 mx 1 m.
O C. Jack will walk along the meter stick and count how many steps he
takes. He will then walk off a space of 1 mx1 m.
O D. Jack will measure a space of 1 mx 1 m on a large sheet of paper.
He will then use the paper to mark the space outside

d bonding propertys

explanation:

carbon can form so many different compounds not just with oxygen

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!

yes

no

blue is scattered more than other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time.