- D) SYMBIOSIS 5) Identify as examples of Symbiosis (parasitism.commensalism mutualism. predatoriprey) a. __ - Lamprers are cels that attach to lake trout with their tooth-lined mouth.eventually killing the trout. b. __ - Cleaner fish of all kinds will swim into the moth of Morray Eek and clean the eel's mouth of parasites and trapped food. c. __ - The lichen is a symbiosis of a fungus with algae living inside of it. The fungi provide a moist place for the algae to live. In return, the algae provide food for both through photosynthesis. d. __ - Edward joined the Biology 20 Field study group but failed to do this part in the writing of the report. e. __ - A group of Mongoose has a gourmet meal of insects on a large Wort Hog. The Wort Hog lays there with joy as the Mongoose clears the insects from its body.
- 7. Imrestigate: In the DESIGN tab, the white crcles represent the insertion point of the tendons,where they connect the muscles to the bone. Use the Gizno to see how the location of the nsertion point affects the amount of mass that can be lifted. A What do you find?The farther the tendon is placed, the easier the weight will be litted while the shorter the tendon is placed from the forearm makes it harder for the weight to be litted B. Why do you think the location of the Insertion point has this effect? __ __ C. Note how far the arm lifts the weight What is a disadvantage of moving the Insertion point farther from the elbow? __ In an actual hum an arm, the insertion point is close to the elbow, allowing for a greater range of motion
- 4) Determine whether the following situation is an r-Selected or K-Selected strategist. a. __ - A mouse gives birth to 25 pups. b. __ - A bear cub will stay with its mom for a year. c. __ - Usually fits under the J-Curve growth. d __ -2 weeks after birth. 4 Richardson'Ground Squirrels give birth to 5 pups. e. __ - The population of Mosquitos is usually in June and August.Once is hits September their population deelines drastically. f. __ - Organisms normally fit under the S-Curve growth.
- 9. List three (3)functions of the large intestine. 10. Name the four (4) divisions of the colon.
- 8. (22:45) Short tandem repeats (STRs) are base pair sequences that repeat themselves s on a segment of DNA How are short tandem repeats used to perform identity matches between DNA found at a crime scene and DNA of an individual? 9. (27:05) How do scientists use SNPs to determine ancestry and origin? 10. (28:00) Why are the reference databases for DNA biased, and how do they contribute to perpetuating the idea of minority and majority groups? 11. (33:00) What is responsible for making critical proteins that keep our bodies functioning the way that they should? 12. (34:00) What is the name of the gene responsible for some breast cancers? 13. (37:45) Why might consumer DNA tests not be very reliable when it comes to testing for your susceptibility for certain diseases, like breast cancer? 14. (After watching the video) In your own words, outline some pros and cons of consumer DNA testing. What are some definite benefits to using this technology? What are some risks?
