Your lab partner is trying to figure out a way to decrease the standard error of the mean when planning a t-test for his/her experiment. One way that will most likely accomplish this is: a) decrease sample size
b) increase sample size
c) increase variability in the sample

Which statements about the two fossil images are correct? 1. cave bears are ancestors of plateosaurus. 2. plateosaurus were present on earth before ostracoderms. 3. ostracoderms were the first to die. 4. plateosaurus died after the ostracoderms. 5. cave bears are the oldest fossils.

Anna’s mother prepares sauerkraut, a fermented dish made from finely cut cabbage and salt. lactobacillus bacteria present on the surface of the cabbage combine with salt to turn the cabbage into a crunchy, sour dish. what chemical process occurs to create this dish? a. alcoholic fermentation b. cellular respiration c. conservation d. lactic acid fermentation e. photosynthesis

Ahands-free device may only be used if it can be activated or deactivated with a