Adult Daphnia cucullata are aquatic and have two morphs. One has a large “helmet” which makes it harder for their main predator, a type of insect, to eat them. The other lacks the helmet. Female Daphnia keep their eggs within their bodies before hatching. Typically, when mothers are in ponds with their insect predators, their offspring develop helmets, and vice versa. The above scenario best represents an example of a: a.continuous adaptive response b.non-adaptive response c.immediate adaptive response d.predictive adaptive response

Adult Daphnia cucullata are aquatic and have two morphs. One has a large “helmet” which makes it harder for their main predator, a type of insect, to eat them. The other lacks the helmet. Female Daphnia keep their eggs within their bodies before hatching. Typically, when mothers are in ponds with their insect predators, their offspring develop helmets, and vice versa. The above scenario best represents an example of a: a.continuous adaptive response b.non-adaptive response c.immediate adaptive response d.predictive adaptive response

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter17: Communities And Ecosystems

Section: Chapter Questions

Problem 2CT

See similar textbooks

Similar questions

Consider the effects of the same climate change scenario (+3°C) for a small frog with high cutaneous resistance, Litoria bicolor and cane toads Rhinella marina . The characteristics of the 3 species are show in the table below. The main differences among these 3 spreadsheets are the body masses and cutaneous resistances. Another difference is that, unlike Litoria caerulea, the other two species are assumed to be outside during the day rather than in a tree hollow. The wind speed inside a hollow is very low, and the humidity is higher. But the air temperatures are the same for all 3 models. Under the climate change scenario, were these 2 species exposed to lethal conditions for either water loss or body temperature? Species Mass (g) Cutaneous resistance (s/cm) Critical Thermal Maximum Temperature (°C) Litoria caerulea 50 14 37.5 Litoria bicolor 1 63 41.0 Rhinella marina 1, 50 or 500 1.7 37.5
Tiger Moths produce high pitched ultrasonic clicking when they hear the echolocation calls of bats and we know that bats eat moths. As a result, the bat's sonar is jammed and the Tiger Moth escapes without being caught, killed, and eaten. Please use your knowledge of Evolution by Natural Selection to explain the process by which this remarkable anti-predator defense evolved in Tiger Moths. Please help me with this question! Thank you.
forest sites than in forest fragments, whereas there were no significant differences between fragments of different sizes. These results provide further evidence for the effects of habitat size on the phorid-Acromyrmex system in a tropical rain forest, based on the abundance of parasitoids both as adults in the field and as reared immature phorids in the laboratory. Phorid parasitized leafcutter ants were most abundant in areas of continuous forest, and less abundant in the forest fragments. O Phorid flies are important parasitoids of leafcutter ants nd leafcutter ants can be found in Brazil's Southeastern Both phorid flies Atlantic Forest. The study provides evidence that this parasitoid-host interaction between phorid flies and leafcutter ant differs between continuous forest and forest fragments. Phorid flies were just as abundant in forest fragments as they were in continuous forest, but were less successful in parasitizing leafcutter ants.
You want to distinguish between two hypotheses to explain the patterns you see: 1) Males not feeding the young is an adaptation to dimorphism 2) If males don't feed the young in a species, it will allow them to become brightly colored To begin to address this question, map the characters changes in dimorphism and males feeding the young onto each of the trees on the previous page. CHARACTER SEXUAL DIMORPHISM MALES FEED YOUNG Cassin's Vireo No No Red Fox Sparrow Cape May Warbler Cedar Waxwing Golden-Crowned Kinglet Pyrrhuloxia Yes No No No No Yes No Yes Yes No California Gull No Yes Note: This data is fictional 5) Which of the hypotheses in part 4 is consistent with your analysis? Explain why in a brief paragraph.
A federal agency has put you in charge of devising responses to the invasion of zebra mussels and quagga mussels. Based on what you know from this chapter, how would you seek to control the spread of these species and reduce their impacts? What strategies would you consider pursuing immediately, and for which strategies would you commission further scientific research? For each of your ideas, name one benefit or advantage, and identify one obstacle it might face in being implemented.
Due to its ability to camouflage itself from predators, the White Peppered Moth of England was once much more abundant than the Black Peppered Moth. As the Industrial Revolution hit, factories began to release black soot which coated everything, including tree bark. Because the moths’ habitat was now darker, the white moth became much more susceptible to predators. At the same time, the Black Peppered Moth was now more protected and began to increase in number.This story is an example of A. natural selection. B. extinction. C. endangered species. D. mutation.
Which of the following is correct concerning the total number of ticks collected at each life stage for each species? a:The highest number of adults were of D. variabilis and the highest number of larvae collected were of D. occidentalis. b:The highest number of adults collected were of D. variabilis, and the highest number of larvae collected were of H. leporispalustris. c:The highest number of adults collected were of D. occidentalis, and the highest number of larvae collected were of I. pacificus. d:The highest number of adults collected were of D. variabilis, and the highest number of larvae collected were of I. pacificus. article link: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0201665 I don't know what else should be included in my question, everything is in the article link that i attached
Organisms have developed defense mechanisms to protect themselves from predation. These defense mechanisms include protective colouration Mullerian mimicry Batesian mimicry cryptic colouration chemical defense Match the following examples to the type of protective mechanism listed above.Stripes of a skunk AnswerA fawn with fur colouring that camouflages it in the forest AnswerTwo species of poisonous butterfly with the same colour pattern AnswerA hawkmoth with the same black and yellow body markings as a wasp Answer
Identify the type of behavior. 1) 2) Goose. Bees attracted to the smell of the flower and flying towards the scent. _: Once initiated, it will run to completion and this could be observed in nesting behavior of Graylag 3)_ : A genetically program form of learning during developmental stage. Example: sparrow babies learn how to sing exactly at the same frequency as the mother. But if the babies grow isolated from their mother, the singing frequency will be different. 4) A turtle draws its head back into its shell when its shell is touched. After being touched repeatedly, the turtle realizes it is not in danger and no longer hides. This is an example of 5) : A child might stop throwing tantrums after his/her favorite toy is taken away after each tantrums.
In 1955, conservationists in Hawaii were concerned about an invasive species, the giant African land snail, Achatina fulica. A. fulica was reproducing widely and had few predators. In an attempt to control the invader and protect the environment, the conservationists imported the rosy wolf snail, Euglandina rosea (E. rosea), that preys on other snails for food. Which of the following explains what will most likely happen to A. fulica? Why? E. rosea quickly becomes the top predator, instead of A. fulica. The number of A. fulica decreases. A. fulica and E. rosea become competitors, but A. fulica remains the top predator. The number of A. fulica stays constant. A sudden genetic mutation in A. fulica causes them to become smaller and more attractive to E. rosea. The number of A. fulica decreases. Natural selection causes A. fulica to grow bigger, be more aggressive, and eat more snails, including E. rosea, over time. The number of A. fulica increases.
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.
Which of these statements about the virulence of rabbit myxoma virus is TRUE?A. Rabbit myxoma virus needed to become less virulent so it could coexist with its rabbit hosts.B. Directional selection favored a coevolutionary escalation where resistance evolved in rabbits and less virulence evolved in the virus.C. Rabbit myxoma virus became less virulent over time because natural selection favored strains that did not immediately kill the rabbit hosts, enhancing the likelihood of spreading and infecting other rabbits.D. None of the above is a true statement.