Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 32, Problem 5TYU
EVOLUTION CONNECTION A professor begins a lecture on animal phylogeny (as shown in Figure 32.11) by saying,“We are all worms”. In this context, what did she mean?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Draw a phylogenetic tree that has these 8 animals:
Human, Insect, Sponge, Jellyfish (jelly), Placoderm,
Cuttlefish, Coral, Sea Urchin (urchin). With these 8
characteristics: (to be mapped on your tree)
- Single-lens (camera) eye
-Metazoa
-Deuterostome development ('Deuterostome')
-Bilateral symmetry ('Bilateral")
- Innate immune system ('Innate')
- Eumetazoa
- Viviparous
- Determine a derived characteristic for Cnidaria
and map it on your tree
EVOLUTION CONNECTION A professor begins a lecture onanimal phylogeny (as shown in Figure 32.11) by saying, “We areall worms.” In this context, what did she mean?
How can embryos help scientists understand evolution?
Embryos go through various stages that suggest the animal’s evolutionary process.
Embryos are frequently fossilized and illustrate change over time.
Embryos provide evidence for which life forms existed at the same time.
Embryos contain the code for all life on Earth.
Chapter 32 Solutions
Campbell Biology
Ch. 32.1 - Summarize the main stages of animal development....Ch. 32.1 - WHAT IF? What animal characteristics would be...Ch. 32.2 - Put the following milestones in animal evolution...Ch. 32.2 - VISUAL SKILLS Explain what is represented by the...Ch. 32.2 - MAKE CONNECTIONS Evaluate whether the origin of...Ch. 32.3 - Compare three aspects of the early development of...Ch. 32.3 - Prob. 2CCCh. 32.3 - Prob. 3CCCh. 32.4 - Prob. 1CCCh. 32.4 - WHAT IF? Suppose ctenophores are basal metazoans...
Ch. 32.4 - Prob. 3CCCh. 32 - Prob. 32.1CRCh. 32 - What caused ihe Cambrian exploston? Describe...Ch. 32 - Describe how body plans provide useful Information...Ch. 32 - Prob. 32.4CRCh. 32 - Prob. 1TYUCh. 32 - The distinction between sponges and other animal...Ch. 32 - Prob. 3TYUCh. 32 - Prob. 4TYUCh. 32 - EVOLUTION CONNECTION A professor begins a lecture...Ch. 32 - WRITE ABOUT A THEME: INTERACTIONS Animal life...Ch. 32 - SYNTHESIZE YOUR KNOWLEDGE This organism is an...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Figure 20.10 Which animals in this figure belong to a clade that includes animals with hair? Which evolved first, hair or the amniotic egg?arrow_forwardPretend you order an Asian seafood dish. It has clams, fish, squid, snails and jellyfish. How many different PHYLA are represented in your dish? (be sure to count phyla, not classes.) 04 03 02 05 01arrow_forwardLab 10: Kingdom Animalia Introduction Animals all share some characteristics: 1) Multicellular 2) Heterotrophic 3) Their cells have no cell wall 4) At some time in their life they are motile. There are many phyla within the animal Kingdom, and in this activity, you will explore these phyla by building a dichotomous key that will allow you to consider almost any animal and determine which phylum it belongs to. Part 1: Organizing information for the dichotomous key 1) List the 9 animal phyla of macroscopic (visible) animals: Porifera, Cnidaria, Platyhelminthes, Nemotoda, Annelida, Arthropoda, Mollusca, Echinodermata, and Chordata. 2) Use on-line or library resources of your choice, to gather information about these 9 phyla. a. Start by finding two example species per phylum to help tie into your previous knowledge about animal types. Write down these examples. b. Make a list of characteristics that you could use that would help you tell these 9 phyla apart. The final goal is to build a…arrow_forward
- Make phylogenetic tree with this organisms: Gray whale,Ginger, Peacock, Tiger, Rice, Cat, Pineapple, Crocodile, Box jellyfish, Bambooarrow_forwardWRITE ABOUT A THEME: Organization You have seenmany examples of how form fits function at all levels of thebiological hierarchy. However, we can imagine forms thatwould function better than some forms actually found innature. For example, if the wings of a bird were not formedfrom its forelimbs, such a hypothetical bird could fly yet alsohold objects with its forelimbs. In a short essay (100–150words), use the concept of “evolution as tinkering” to explainwhy there are limits to the functionality of forms in nature.arrow_forwardLong ago, many people believed that living things could come from nonliving things. They thought that worms came from wood and that maggots came from decaying meat. This idea was called spontaneous generation. In 1668, an Italian biologist, Francesco Redi, did experiments to prove that maggots did not come from meat. One of his experiments is described below. Redi placed pieces of meat in several jars. He divided the jars into two groups. He covered the first group of jars with fine cloth. He left the second group of jars uncovered. Redi observed the jars for several days. He saw flies on the cloth of the covered jars, and he saw flies laying eggs on the meat in the uncovered jars. Maggots appeared only on the meat in the group of jars left uncovered. What was the question in Redi's experiment? O Is spontaneous generation a valid explanation for maggots in meats? O How do maggots appear in meats? O Are jars a good place to grow maggots?arrow_forward
- What's In Let us review what you have learned from the previous module. Answer the activity below. ACTIVITY 1. Match Me! Directions: Match Column A with the correct answers in Column B by writing the number of your answers in the Answer Grid. If all your answers are correct, the sum when answers are added horizontally, vertically, or diagonally will give you a magic number. Column A Column B a. A process in which new species form b. Authored the Theory of Evolution by Natural Selection 1. Thomas Malthus 2. Hybrid sterility 3. Pre-mating isolating mechanism c. It occurs when a hybrid develops, matures but fails to reproduce d. States population limits resources e. Species will different mating seasons f. Sought pieces of evidence for the idea of uniformitarianism that increasing human 4. Jean Baptiste Lamarck due 5. Temporal isolation not mate to 6. Speciation 1arrow_forwardWorksheet: What Darwin Never Knew Darwin was a naturalist, or a collector of plants and animals from around the world. He made observations that made him more and more curious about the origins of life, and relationships among species (remember--making observations is the first step in the scientific method). Give two examples of such observations from birds, turtles, snakes, whales and/or embryos. From his observations, Darwin concluded that all species were connected. How did dogs and artificial selection (or artificial breeding) shape Darwin’s idea about the tree of life in nature? Darwin proposed natural selection to explain the diversity of species in the world. How did his travels to the Galapagos Islands off the coast of South America shape his thinking? Why is variation of individuals within a species so important to the theory of evolution? Explain using mutations in the fur color of pocket mice of the Arizona desert. Describe gene regulation (also called regulatory genes) or…arrow_forwardC. Phylogenetic tree Interpretation. Salamander Lizard - Perch Hagfish Mouse Chimp Pigeon, Feathers Fur; mammary glands Claws or nails Lungs Jaws 1. Which organisms in the cladogram in figure 1 have fur and mammary glands? 2. Which organisms in the cladogram in figure 1 have jaws? 3. Based on the cladogram, which shared a common ancestor most recently----a mouse and a lizard or a mouse and a perch? 4. Which two organisms would you expect to have a closer matching DNA sequence for a gene that doesn't matter in terms of natural selection?--Hagfish and Pigeon or Hagfish and Salamander?arrow_forward
- Morphology - Comparative Anatomy More evidence for evolution is offered by comparing the anatomy, or body parts, of different organisms. Many animals have body parts that are similar in both structure and function called homologous structures. The forelimbs of animals like humans, whales, birds, and other creatures are strikingly similar even though the forelimbs are used for different purposes such as lifting objects, swimming, or flying. The different changes in the forelimbs are adaptations to the needs of the organisms. Darwin also observed that animals have structures that they do not use, which are called vestigial organs. These are structures that an organism has that do not have a function, though they may have had one in the past. In humans they include the appendix, the fused tail vertebrae, and Humerus wisdom teeth. Perhaps an environmental change made the organ unnecessary for survival, and the organ gradually becomes Radius Ulna Carpals nonfunctional. For instance, the…arrow_forwardMake phylogenetic tree with this organisms : Gray whale,Ginger, Peacock, Tiger, Rice, Cat, Pineapple, Crocodile, Box jellyfish, Bamboo Make it look like the picture example.arrow_forwardName Mikah Pleas DateA Florida Science Assessment Practice Test A Read each question and choose the best answer. Then use the answer sheet to fill in the letter for the correct answer. Use the information to answer questions 1 through 3. The first biological classification system was published in 1738 by Carl Linnaeus. In his system, he divided all organisms into two kingdoms: Plants and Animals. In 1969, another scientist named R.H. Whittaker suggested that there should be three more kingdoms as well. These kingdoms were Monera, Protista, and Fungi. Whittaker's system lasted until 1990, when Carl Woese pointed out that the five-kingdom system did not include room for a group of organisms known as extreme bacteria. This led to the current organization levels shown in the table below. | The Modern Linnaean Classification System The st Domain The Kingdom The Thest Phylum Class Order Family es? Genus The Species 1 According to the modern Linnaean system, there are three domains of life:…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Discovering the tree of life | California Academy of Sciences; Author: California Academy of Sciences;https://www.youtube.com/watch?v=AjvLQJ6PIiU;License: Standard Youtube License