Biology with Connect Access Card
10th Edition
ISBN: 9780077705701
Author: Raven, Peter
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 55, Problem 2A
In populations subjected to high levels of predation
a. individuals should invest little in reproduction so as to maximize their survival.
b. individuals should produce few offspring and invest little in any of them.
c. individuals should invest greatly in reproduction because their chance of surviving to another breeding season is low.
d. individuals should stop reproducing altogether.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Which of the following is associated with the reproductive potential of a species? a. few offspring b. many offspring c. semelparity d. fecundity
A new species is discovered in which males care for offspring after birth, and females leaves the nest immediately. In this species, males are likely to
A. Have more offsprings overall than females.
B. Have fewer offspring overall than females.
C. Be promiscuous.
D. Have lower parental investment.
Which of the following statements does not support the conclusion that giraffes are k-selected species? a. Giraffes are approximately 6’ tall and weigh 150 lbs at birth. b. Wild giraffes begin mating at 6-7 years of age. c. Newborn giraffes are capable of coordinated walking within an hour of birth, and running within 24 hours of birth. d. Giraffes rarely give birth to twins.
Chapter 55 Solutions
Biology with Connect Access Card
Ch. 55 - Source-sink metapopulations are distinct from...Ch. 55 - The potential for social interactions among...Ch. 55 - When ecologists talk about the cost of...Ch. 55 - Prob. 4UCh. 55 - The difference between exponential and logistic...Ch. 55 - Prob. 6UCh. 55 - Which of the following is an example of a...Ch. 55 - If the size of a population is reduced due to a...Ch. 55 - In populations subjected to high levels of...Ch. 55 - In a population in which individuals are uniformly...
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
- Studies of opossums in Georgia have found that individuals from a population on an offshore island have longer lifespans in captivity than individuals from mainland populations. What is a reasonable explanation for this pattern? Group of answer choices a. the island opossums are vampires b. the opossums from the island have a history of being kept in captivity c. he opossums on the island have a lower metabolic rate d. there are fewer predators on the island compared to the mainlandarrow_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_forwardWhich of the following is NOT an example of an r-selected population? Select one: a. Mosquito lifespan is between 42 and 56 days for females and 10 days for males. b. Minnows spawn 16 to 26 times per year, yielding up to 10 000 eggs per female. c. Houseflies are very tolerant of a wide range of environmental conditions and thus have a broad range of habitat. d. Algae are capable of reproducing asexually and sexually to take advantage on the conditions of the environment.arrow_forward
- Imagine you've discovered a complex of closely related species of katydids and crickets. The species vary with respect to parasite exposure and the ability to reproduce sexually or asexually. In a comparative analysis of these species, which result would support the Red Queen hypothesis? A. Sexual reproduction should be more common in species that have low parasite exposure B. Sexual reproduction should be more common in species that have high parasite exposure C.Asexual reproduction should be more common in have high parasite exposure D. Reproductive method will vary independently of parasite exposurearrow_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_forwardIn Animal Dispersion in Relation to Social Behaviour, V.C. Wynne-Edwards suggested that animals act cooperatively and restrain their reproduction to a level sustainable by the environment. George C Williams argued that this was unlikely because ... A. animals are not able to gauge what level is sustainable B. there is little variation among individuals in reproductive output C. natural selection will favour individuals that reproduce above the sustainable level D. resource depletion is unlikely in naturearrow_forward
- Conservation biologists have altered the evolution of salmon populations in captive-breeding programs. Wild female salmon tend to produce fewer large eggs because the large eggs contain more nutrients for the off spring, giving each individual a greater chance to survive. After just a few generations, however, captive-bred females now lay greater numbers of small eggs. Suggest a possible adaptive advantage for many small eggs in the captive-bred environment. What would you predict regarding the reproductive success of captive-bred females released in the wild?arrow_forwardWhich of the following situations has revealed that mutualistic interactions can evolve from prior parasitic relationships? A. Yucca plants are pollinated only by moths of the genus Tegeticula; however, some of the moth species 'cheat" by laying eggs on seeds without pollinating the plant. B. Large-sized lice of the genus Columbicola tended to live on larger species of pigeons. Body size matching had a significant effect on the ability of lice to escape defensive preening by the host bird. C. The nonvenomous yellow-eyed salamander has the same coloration as the toxic California newt. Related nontoxic salamanders which do not mimic the newts are prone to attacks by predators. D. Glochidion trees and Epicephala moths are in an obligate mutualism with each other. Significant cospeciation led to an increase in diversity of the two species.arrow_forwardUnder a simple model, the evolution of asexual reproduction strategies will take over a population. The model relies on two assumptions. Which of the following are the assumptions? a. Reproductive mode does not affect how many offspring are produced by a female. b. Reproductive mode does not affect the sexual selection on males c. Reproductive mode does not affect the probability of offspring survival d. Both a. and b. e. Both a. and c.arrow_forward
- If populations of white rhinoceros (Ceratotherium simum) continue to decline, one approach to prevent extinction would be captive breeding. How does this process work? a. The remaining animals are moved into captivity to try to increase the population, after which they are reintroduced into the wild. b. The remaining animals are moved to a national park. c. The remaining animals are taken to the largest zoos so more people can see them. d. A few individuals are moved to an outdoor enclosure to ensure that mates are available.arrow_forwardWhy were small-beaked medium ground finches (Geospiza fortis) most affected by the drought on Daphne major in 1976? A. Being small, they were less able to withstand the high temperatures during the drought B. The type of food that they eat, insects, was depleted C. Their beaks were too small to eat the remaining food, large nuts D. Their territory was taken by large-beaked medium ground finchesarrow_forwardAccording to the idea of coevolution between predator and prey, when a prey species evolves a novel defense against a predator a. the predator is expected to always go extinct. b. the prey population should increase irreversibly out of control of the predator. c. the predator population should increase. d. evolution of a predator response should be favored by natural selection.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Interactions Within An Ecosystem | Ecology and Environment | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=UMbrxi_DsXc;License: Standard Youtube License