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- Normal text Arlal 10.5 3. 1. The stickleback would swim from the ocean up to fresh water lakes to spawn (lay eggs). When the land rose and cut off the river passage back to the ocean, what challenge did the stickleback face? 2. Ten-thousand years later, how have the stickleback in the freshwater lakes changed or evolved? 3. The ocean has many predatory fish that could catch and eat the stickleback, what are at least two characteristics that ocean stickleback evolved? 4. Why are stickleback spines a liability (an unfortunate characteristic) in Bear Paw Lake? 5. What FOUR letters make up the stickleback DNA? Sign outWhat was more important for the invasion of the land by vertebrates during the Paleozoic: becoming tetrapods, evolving efficient lungs or evolving waterproof skin?Describe one hypothesis that explains the extinction of large mammals in the late Pleistocene.
- How will vertebrates (or animals in general) can solvethecurrentissues of climate change and species extinction? Base your answers on the life cycle (reproduction &development), adaptation, diversity, and ecological interrelationships of animals.The extinction of dinosaurs left gaps in the early ecosystems on earth. Explain briefly the aftermath of the dinosaurs extinction in connection with other animal groups.What are Hox Genes and how to they contribute to the creation of a variety of animal body morphology? Describe Phylum Porifera. What are the distinguishing characteristics and which organisms belong here? Explain the three main levels of Biodiversity. Describe the main threats to biodiversity caused by humans. Describe the ways humans attempt to conserve biodiversity of landscapes and regions?
- Animal life changed greatly during Cambrian explosion, with some groups expanding in diversity and others declining. Describe and Interpret this events as feedback regulation at the level of biological community.WRITE ABOUT A THEME: INTERACTIONS Animal life changedgreatly during the Cambrian explosion, with some groupsexpanding in diversity and others declining. Write a shortessay (100–150 words) interpreting these events as feedbackregulation at the level of the biological communityBecause new species will eventually evolve to replace those that humans are driving to extinction, why is declining biological diversity such a threat?
- What features do the ecosystems in which these animals live most Ilkely have in 34 The table lists the characteristics of four types of animals. Type of Animal Omall mammal; body that is about 32 cm long; ong, scaly tall; back feet that are partially webbed Characteristics Muskrat Migratory bird; flat, webbed feet; males and Temales have different colored feathers Mallard mall mammal; about 61 cm long; thick fur; eats small mammals, birds, and fish Mink Migratory bird; black and white feathers; hunts by diving and spearing fish Western grebe common? F Dry, rocky mountains G Forests of pine trees H Tall, spiny cacti - Lakes and riversWhat about a sperm whale's blow hole as an adaption ensures their oceanic survival? Fully cite and use recent peer reviewed sources from 2010 to the present.The purpose of the study described in this article was to: a. investigate the effect of increasing sea surface temperature on the change in tropical and temperate invertebrate diversity and density in marine coastal waters. b. determine the mechanism by which marine heat waves cause an increase in the mortality of aquatic invertebrates. c. determine the best way to protect declining invertebrate species in marine coastal waters. d. examine the changes in the interactions between molluscs and echinoderms over time in Western Australian coastal waters. article reference: Responses of intertidal invertebrates to rising sea surface temperatures in the southeastern Indian Ocean by Fred E. Wells