Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Chapter 21, Problem 4DAA
Summary Introduction
To determine: Whether the data supports Dr. K and his associates hypothesis.
Concept introduction: Plasmodium is one among the genus of unicellular eukaryotes that are obligate
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Chapter 21 Solutions
Biology: The Unity and Diversity of Life
Ch. 21 - Summoning Moaquitoes Parasites sometimes alter...Ch. 21 - Prob. 2DAACh. 21 - Prob. 3DAACh. 21 - Prob. 4DAACh. 21 - Prob. 1SQCh. 21 - Diplomonads, and parabasalids lack _______. a. a...Ch. 21 - Radiolaria and diatoms have a shell of _______. a....Ch. 21 - Prob. 4SQCh. 21 - Diatoms produce _______ that help(s) them float....Ch. 21 - Prob. 6SQ
Ch. 21 - ______ are members or the phytoplankton. a. Water...Ch. 21 - Prob. 8SQCh. 21 - Prob. 9SQCh. 21 - Prob. 10SQCh. 21 - Prob. 11SQCh. 21 - Prob. 12SQCh. 21 - Prob. 13SQCh. 21 - Prob. 14SQCh. 21 - Prob. 15SQCh. 21 - Which groups or protists would you be most likely...Ch. 21 - Apicomplexans evolved from a photosynthetic...Ch. 21 - Diplomonads have neither mitochondria nor...
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- Give three reasons why tilapia does not stay in the seaarrow_forwardExplain with a diagram how the malaria parasite is trasmitted to the host by the femalee anopheles mosquitoarrow_forwardWhich statements regarding the life cycle of the malaria causing Plasmodiun Falciparum are true? Check all that apply. 1. The sporozites that enter the human body by a mosquito bite are haploid 2. The merozoites produced by liver cells are haploid 3. Merzoites in the bloodstream reproduce and are diploid 4. Some Merozoites produce diploid sexual structures called gametocytes 5. In mosquitoes, gametocytes produce gametes that fuse to form a diploid zygote. Please explain which of the statements are correct and why. Thank you.arrow_forward
- Molds usually reproduce sexually when food is running low. Why might sexual reproduction be more advantageous at this time than when food is plentifularrow_forwarda. Why is it necessary for most parasites to leave their host tocomplete the life cycle?b. What are some ways to prevent completion of the life cycle?c. What is the benefit to parasites of having numerous hosts?d. What are the disadvantages in having more than one host?arrow_forwardWhy would a parasite develop a life cycle involving an intermediate hosts? What is this giving the parasite? Provide example(s)arrow_forward
- Although they are not photosynthetic, apicomplexan parasites such as Plasmodium have modified plastids. Describe a current hypothesis that explains this observationarrow_forwardIt is not always easy to categorize a particular case of symbiosis. Suppose a certain species of snail is always found living on a certaincoral. No one has found evidence that the snail harms the coral, sothe relationship is classified as an example of commensalism. Howwould you go about testing this hypothesis? What kinds of observations might lead to the conclusion that the snail is a parasite, or that ithas a mutualistic relationship with the coral?arrow_forwarda. Which parasites are zoonotic?b. Which are strictly human parasites?c. Which are borne by vectors?d. Which cause intestinal symptoms?e. Which are hermaphroditic?f. Which are associated with rare or raw meat?arrow_forward
- How would you classify the following organism? A flesh fly (Anolisomyia) whose larvae develop inside lizards and often kill their lizard hosts Predator Parasitoid Parasitearrow_forwardWhich one of these is NOT an example of a parasite? Select one: a. A bromeliad plant growing on the trunk of a rainforest tree that derives its moisture and nutrients from the air, rain and debris accumulating around the plant. b. A leech feeding on blood it extracts from the leg of a human host. c. A Rafflesia plant using a specialised absorptive organ, known as a haustorium, to draw nutrients from other plants. d. A tapeworm that lives inside the intestine of an animal and feeds off the food that the animal is digesting. Which one of the following BEST describes the consequences of an altruistic interaction between the donor and the recipient of the behaviour? Select one: a. Positive for the donor, positive for the recipient. b. Negative for the donor, positive for the recipient. c. Positive for the donor, negative for the recipient. d. Negative for the donor, negative for the recipient.arrow_forwarda. Why is it necessary for most parasites to leave their host to complete the life cycle? b. What are some ways to prevent completion of the life cycle? c. What is the benefi t to parasites of having numerous hosts? d. What are the disadvantages in having more than one host?arrow_forward
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