BIOS 195 Lab Exam 1 - 2. Secondary Source –Answer A secondhand acco...

SUBSCRIBE

BIOS 195 Lab Exam 1

• Primary Source

–Answer an account of an event created by someone who took part in or witnessed the event

• Secondary Source

–Answer A secondhand account of an event or a retelling of another person's observations written by someone who did not witness or actually participate in the events.

• null hypothesis

–Answer a statement or idea that can be falsified, or proved wrong

• Hypothesis vs. Prediction

–Answer Hypothesis –Answer statement yet to be proven, proposes a relationship

FORMAT

–Answer If A is related to B, then changes in B will occur when A is altered Prediction –Answer statement about outcome, proposes an outcome FORMAT –Answer If I do this, then that will happen...

• What behaviors were we observing in the termites?

–Answer We used a pen to draw lines and watched whether the termites would stay on that line

• What types of termites did we observe?

–Answer We observed and discifered whether the termites we were watching were workers or soldier 1 / 2

SUBSCRIBE

termites.

• Steps of the Scientific Method

–Answer Identify problem, Form Hypothesis, Collect Data, Analyze Data, Form Conclusions

• What did we find in the termite lab?

–Answer Trail pheromones are chemical markers that lead termites along a path to food and help them return to the colony once they've found it. These pheromones are found in in a chemical that appears certain ink pens

• Why is it important to have a large sample size?

–Answer Larger sample sizes provide more accurate mean values, identify outliers that could skew the data in a smaller sample and provide a smaller margin of error

• What is a t-test?

–Answer A t-test is a statistical test that is used to compare the means of two groups. It is often used in hypothesis testing to determine whether a process or treatment actually has an effect on the population of interest, or whether two groups are different from one another.

• Understand the two-word (binomial) scientific names used to identify a species.

–Answer The first part of a scientific name is called the genus. The second part of a species name is the specific epithet.

• How many species of pine do we have in Michigan?

–Answer -Three species of pine are native to Michigan -They are the white pine (P. strobus L.), which is our state tree, the red pine (P. resinosa Aiton), and the jack pine (P. banksiana Lamb.

• Biological Species Concept

–Answer A group of organisms that can successfully inter- breed and produce fertile offspring

• / 2