A student wants to know if girls are better at balancing than boys. She gathers 25 of her 12 year old female friends and 25 boys who are also 12 years old. Her hypothesis is that girls will have better balance. She sets up a balance beam 1 foot off the ground and has each student walk across 2 times. She counts how many times they slip off the beam and records her data in a chart. At the end of her experiment, she has noticed that the girls fell off the beam a total of 10 times and the boys fell off 15 times all together. Did she use a “control group”?

What makes the results of a scientific experiment accurate? a) having multiple trials b) lacking any supporting data c) working in a lab d) using a hypothesis that is always true

Seen in some gram-positive bacilli, occurs when only the inner portion of a cell wall is deposited across the dividing cell. this new cross wall puts tension on the outer layer of the old cell wall. eventually, the outer wall breaks at its weakest point with a snapping movement that tears it most of the way around. the daughter cells can then remain hanging together almost side by side being held by a small remnant of the original outer wall. choose from the following statements the ones that correctly discuss reproduction using binary fission in a bacterial cell. select all that apply. view available hint(s) select all that apply. due to the stretching of the cytoplasmic membrane, both cells will contain a complete genome. each daughter cell will contain an equal number of organelles. the daughter cell will be a permanently smaller copy of the mother cell but will contain a complete genome. each daughter cell is an exact copy of the other, both genetically and morphologically

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?