Think about the types of symbiotic relationships you learned about in this unit: parasitism, commensalism, and mutualism. For each one of these, name and describe two organisms that participate in this relationship. Explain which organism(s) is(are) benefitting from the relationship, and discuss how the arrangement allows for its(their) survival. Do not use any of the examples given in the lesson! This is your opportunity to do some research and learn about a different scenario than one already discussed. 10 points

Which of the following is an example of a tissue on the digestive system a. the stomach b. smooth muscle that lines the stomach c. nerve cells in the stomach d. enzyme molecules in the stomach

In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20

Determine if the following statement is true or false. if true, choose true. if false, choose the rewording that is true. according to the law of independent assortment, alleles for each gene are inherited together so that they always stay together. according to the law of independent assortment, offspring express a combination of their parents' traits. according to the law of independent assortment, alleles for a characteristic split during meiosis and combine during fertilization. true according to the law of independent assortment, alleles for each gene are inherited independently so that no two alleles stay together.