Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 44, Problem 1CT
Think back to Section 44.6. When researchers moved guppies from populations preyed on by cichlids to a habitat with killifish, the life histories of the transplanted guppies evolved. They came to resemble those of guppy populations preyed on by killifish. Males became gaudier; some scales formed larger, more colorful spots. How might a decrease in predation pressure on sexually mature fish allow this change?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Pacific salmon are anadromous fishes. What does it mean to be 'anadromous'?
Fishes who spend mo of their adult lives at sea and return to freshwater to spawn.
Fishes who spend most of their adult lives in fresh water, but must return to the sea to spawn.
Fishes who spend their entire life either at sea or in freshwater.
Fishes who spend most of their juvenile lives at sea and return to freshwater to spawn.
OOOO
Describe a two-year cycle in the life of an adult female gray whale by answering the specific questions below.
Where do they mate and give birth?
How often do they give birth?
Where do they spend the non-breeding season? (Note this is also where they eat because they don’t typically feed during migration or on their breeding waters.)
When do they migrate south along the Oregon Coast?
When do they migrate north along the Oregon Coast
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 out
Chapter 44 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 44 - Iguana Decline In 1987, Martin Wikelski began a...Ch. 44 - Iguana Decline In 1987, Martin Wikelski began a...Ch. 44 - Iguana Decline In 1987, Martin Wikelski began a...Ch. 44 - Most commonly, individuals of a population show a...Ch. 44 - The rate at which population size grows or...Ch. 44 - Suppose 200 fish are marked and released in a...Ch. 44 - Prob. 4SQCh. 44 - For a given species, the maximum rate of increase...Ch. 44 - ______ is a density-independent factor that...Ch. 44 - Prob. 7SQ
Ch. 44 - Prob. 8SQCh. 44 - The human population is now about 7 billion. It...Ch. 44 - Prob. 10SQCh. 44 - Prob. 11SQCh. 44 - Prob. 12SQCh. 44 - The demographic transition model predicts a...Ch. 44 - Prob. 14SQCh. 44 - Match each term with its most suitable...Ch. 44 - Think back to Section 44.6. When researchers moved...Ch. 44 - Mountain gorillas are a highly endangered primate...Ch. 44 - Bluebirds are songbirds that, like wood ducks,...Ch. 44 - The age structure diagrams for two hypothetical...
Additional Science Textbook Solutions
Find more solutions based on key concepts
How does the removal of hydrogen atoms from nutrient molecules result in a loss of energy from the nutrient mol...
Seeley's Anatomy & Physiology
More than one choice may apply. Using the terms listed below, fill in the blank with the proper term. anterior ...
Essentials of Human Anatomy & Physiology (12th Edition)
Propose a model for the assembly of a flagellum in a typical Gram-positive cell envelope.
Prescott's Microbiology
Describe the role and impact of microbes on the earth.
Microbiology Fundamentals: A Clinical Approach - Standalone book
Why is it unlikely that two neighboring water molecules would be arranged like this?
Campbell Biology (11th Edition)
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
- In spadefoot toads there are two forms of the tadpoles: omnivores and carnivores. Environmental factors such as population density, oxygen concentration, and availability of food determine which form any particular tadpole takes. Consider the situation below. A single pair of toads produces a fertilized group of eggs in a pond. The pond dries a bit creating two separate ponds, one is deep and the other is shallow. All the tadpoles in the deep pond become omnivores and all the tadpoles in the deep pond become carnivores. There is a heavy rain and the ponds become connected again and the two groups of tadpoles mix together. The carnivores eat most of the omnivores and more of the carnivores become adult toads This is an example of Group of answer choices A. natural selection and evolution B. evolution only C. natural selection onlyarrow_forwardUse the survivorship curves (A, B, and C) shown on the graph below to answer the following three questions. kx A B с Age Which curve best describes survivorship in clams? (Clams have external fertilization and free-swimming larval stages.) Curve A Which curve best describes survivorship in mice? Curve C Which curve best describes survivorship in a species, such as humans, that invests a great deal in caring for the young over a very long period of time? Curve Barrow_forwardA defence mechanism is how the sea cucumber fires its internal organs at attackers. How would this defence mechanism have evolved over time due to pressure from predation and/or competition? Please explain in details.arrow_forward
- Describe the behavior of fish in these four scenarios: a. Undisturbed b. Few pebbles are dropped c. Fish food are dropped d. Tank is tapped on one sidearrow_forwardWhich of the following factors makes species recognition receptors on the sea urchin egg membrane important? Group of answer choices a. high levels of sexual selection b. external fertilization c. carnivorous larvae d. type III survivorship curve e. cytoplasmic determinantsarrow_forwardWhich of the following would be an appropriate hypothesis for an experiment? a.Sea urchins fertilization rate drops as carbon dioxide concentrations rise. b.Sea urchins living in kelp forests have higher fertilization rates than those living on rocks in intertidal areas. c.Sea urchin species spawning near other echinoderm species have lower fertilization rates. d.The concentration of phthalates in sea water reduces sea urchin fertilization rates. e.Sea urchins living in depths up to 10 meters have higher fertilization rates.arrow_forward
- A scientist for one of the Water Management Districts near Victoria conducts a study of the effects of industrial wastewater on marine clams (animals that are sessile as adults) by comparing the density and reproductive condition of clams collected within 100 m of a discharge pipe with those collected 10 km away. He found very low densities of clams near the pipe and those that were there had very small gonads. You have been hired by the company discharging wastewater via this pipe to explain why these data should not be used to shut you down. What scientific arguments are you going to make to the review board? Hint: don’t talk about study design issues….tell me about what other ecological factors might be at play here.arrow_forwardFemales of many African cichlid fish lay their eggs on lake bottoms in depressions made by males. The females brood their eggs and young fry in their mouths. A female picks up her orange eggs almost as quickly as she lays them. As this happens, the male cichlid that made the “nest” may move in front of her and spread his anal fin, which in many species is decorated with a line of large orange spots. The female may try to pick up the objects on the fin. As she does, the male releases his sperm, some of which swim into the female’s mouth, where they fertilize her eggs (Egger et al. 2011). If sensory exploitation explains the evolutionary origin of the female’s behavior, what prediction can you make about how female fish of a related species will respond to the normally unspotted anal fins of males that have been painted with colorful egg-like spots? Please don't write from any online sourcearrow_forwardDescribe the predation strategy (i.e., actively searching or ambush) of zebrafish under a well-lit environment.arrow_forward
- Adult Lake Trout and Chinook salmon live in deep, open water and eat small prey fish, but they have very different reproductive strategies. Lake Trout live up to 10 years and spawn (breed) every year near the lake shore. Most Lake Trout that live to adulthood eventually die in the open water and their carcass settles to the lake bottom. Salmon live 3-4 years and only spawn once. When they spawn, they swim up river in the Fall (sometimes all the way to MSU, via the Red Cedar River), where they build nests in gravelly river beds, lay their eggs in the nests and the males fertilize the eggs. Then, both the males and the females die. Q3. In 1-2 sentences, explain how the life history trade-offs of Chinook salmon and Lake Trout are different. How do such different strategies still increase fitness of the individuals?arrow_forwardYou are surveying of the turtle species identifies several breeding populations in different habitats across the island. After a very warm summer of 2020, you observe that the hatchlings from low-elevation nests are mostly males, whereas hatchlings from higher elevations have an equal female-to-male sex ratio. As a bit more background, temperature influences the sex ratio in some turtle species, a phenomenon called temperature-sex determination (TSD). With this knowledge, you hypothesize this new turtle species exhibits TSD, and that eggs incubated at low elevations during the warm year experienced a high enough embryonic temperature to skew the sex ratio. To test this, you collect 20 newly laid eggs in early 2021 & take them back to the lab to conduct an experiment to test your hypothesis that this species exhibits TSD. Assume you know the average nest temperature in the wild, and you have access to multiple incubators Design an experiment to test the hypothesis that this turtle…arrow_forwardDiscuss reasons why gray whales leave their cold-water feeding grounds during the winter season.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage LearningBiology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781337408332Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage LearningBiology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
MARINE ECOSYSTEM (Animation); Author: EarthPen;https://www.youtube.com/watch?v=-wrUr0esoI0;License: Standard YouTube License, CC-BY