Concept explainers
WRITE ABOUT A THEME: INTERACTIONS Animal life changed greatly during the Cambrian explosion, with some groups expanding in diversity and others declining. Write a Short essay (100-150 words) interpreting these events as feedback regulation at the level of the biological Community.
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Anatomy & Physiology
- topic: feedback mechanism How do you redefine homeostasis if it were used to refer to the functioning of an ecosystem rather than a single organism explain pls and do not copy from googlearrow_forwardCheck Your UnderstandingWrite the word TRUE if the statement is correct; if not, write the WORD that makes it false. Cladosporium cladosporioides is used for biodegradation. Speciation and extinction can be seen in the temporal pattern of biodiversity. The barrel concept can be used to explain the effects of limiting factors.arrow_forwardSuppose you were told that mining deep-oceanmineral resources would mean severely degradingocean bottom habitats and life forms such as gianttubeworms and giant clams. Do you think that suchinformation should be used to prevent ocean bottommining? Explain.arrow_forward
- You have now studied three different types of anatomical structures. Homologous structures show individual variations on a common anatomical theme. These are seen in organisms that are closely related. 1. Give an example of a homologous structure from this activity: Analogous structures have very different anatomies but similar functions. These are seen in organismsthat are not necessarily closely related but live in similar environments and have similar adaptations. 2. Give an example of an analogous structure from this activity: Vestigial structures are anatomical remnants that were important in the organism's ancestors but are nolonger used in the same way. 3. Give an example of a vestigial structure from this activity:arrow_forwardFour organisms are analyzed for various biological features as described below. Plant Multicellular Fossils found in Fossils with Fossils with fruiting Fossils with stromatolites teeth bodies stomates A No Yes No No No B Yes No Yes No No Yes No No Yes No Yes No No No Yes Part A: Explain how to tell which major groups of living things these come from and how to tell whether they may come from an aquatic habitat or from a terrestrial habitat, if it is possible to tell. Part B: Decipher which organism comes from what major groups of organisms and explain how you deciphered this. B red 000 吕口 F3 F1 F2 O00 F4 F7 F8 % 2 3 6 8 W E R T * 00arrow_forwardWhat would be the best way to make non- biologists aware of the ecological and economic costs of global warming as it affects coral reefs and jelly populations?arrow_forward
- When describing this experiment to your friends, they point out that rotifers are multicellular predators and thus cannot have been responsible for the earliest transition from single cell to multicellularity. Based on what you have learned in this lab and in the paper by Herron et al. 2019, what would be an informed response to this comment include? Select all that apply. Question 3 options: It is irrelevant that rotifers are multicellular in our study as some of the predators of small unicellular organisms are themselves unicellular, and predation, whether by a unicellular or multicellular organism, was all that was needed. Multicellularity evolved many times. While multicellular predators cannot have been responsible for the earliest transition from unicellular to multicellularity, they may have played a role in some of the later transitions which occurred after the evolution of animals. Using a multicellular predator is…arrow_forwardUse the vertebrate lineage to explain how the cutaneous system (the skin) changed and evolved to life on land. Include which classes contributed key features and advancements. Your focus is on terrestrial vertebrates, but explain the basics of aquatic skin to show where the story started. Include how each change benefited that lineage in terms of their evolution to land (what niches did each new feature allow). HINT: Sometimes it's helpful to think in terms of Pros and Cons of the evolution of a feature. If you know I am looking for a word - bold or underline it. If there is the material you need to draw to support your answer upload that in the second question.arrow_forwardCreate a diagram illustrating the level of the organizational structure of the Tilapia fish. To begin, you will examine the fish as an organism. What structures did you notice? How are these structures constructed? How might this tilapia contribute to the ecosphere?arrow_forward
- topic: feedback mechanism How do you redefine homeostasis if it were used to refer to the functioning of an ecosystem rather than a single organism pls explain do not just copy from google tyarrow_forwardplease explain A drawback of the time hypothesis to explain the variation in species richness is that 1. Cannot account for algal diversity. 2. Fossils do not preserve well in the oceans. 3. Geological activity may interfere with species richness measurements. 4. It is not applicable to marine ecosystems because there was no glaciation in oceans. 5. Humans significantly modified marine environments.arrow_forwardUse the igure below, which shows the Tood web of an aquatic ecosystem, to anSwer the following questions: Killer whale Crabeater seal Elephant seal Adelie penguin Squid Leopard seal Cod / small animals and protists Algae Use the figure below, which shows the food web of an aquatic ecosystem, to answer the following questions: CMAC 1-In the food web above, there are eight food chains that include krill. In the space provided, identify all of the organisms in the order in which they occur in three of these eight food chains Food chain 1 Food chain 2 Food chain 3 3- Identify the most energy efficient food chain for the killer whale. Food chain 3- Draw am energy pyramid for the most energy efficient food chain for the killer whale . 4 2 I 3.arrow_forward
- Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning