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Semelparous species are those that produce all of their offspring in a single reproductive event. The survivorship curve of a population of a semelparous species would most likely resemble which of the following?0 AnswerW hich of the following is an example of complete intrinsic post-zygotic reproductive isolation between two species P and Q?1 AnswerMany bird species show cooperative breeding. Offspring are cared for by parents and other individuals (helpers) who are typically offspring from previous years. Which of the following is NOT an appropriate evolutionary explanation for why helpers do not leave and breed on their own? (A) At high population density new breeding territories are difficult to obtain and helpers gain more from staying and helping than from dispersing to breed (B) In environments where resources are scarce, helpers gain more by suppressing their reproduction and minimizing population extinction than from dispersing to breed (C) When complex parental care is required for offspring survival, helpers gain more by staying and learning to care than from dispersing to breed (D) When predation risk during dispersal is high, helpers gain more by staying and helping than from dispersing to breed0 AnswerI ncreased anthropogenic disturbance has resulted in an overall decrease in densities of trees and an increase in fragmentation of forests. Which of the following types of trees will have the greatest reduction in reproductive success?1 AnswerReplace the bold portion by choosing the phrase from the given alternatives that best keeps the meaning of the original sentence.1 AnswerA researcher found n number of woody species in a one hectare tropical forest plot. He employs the same method in another one hectare plot in the same forest. Based on the principle of species area curves, the expected number of new species in the second plot is (A) equal to n (the number of species found in the first plot) (B) less than n (the number of species found in the first plot) (C) more than n (the number of species found in the first plot) (D) always zero0 AnswerWhich one of the following amino acids is catalyzed by activated macrophages to produce reactive nitrogen species? (GATE-Biotechnology-2018)1 AnswerM ales of a bird species provide parental care by feeding nestlings before they fledge. Which of the following is a PROXIMATE explanation for this behaviour?1 AnswerUnder which of the following conditions is rapid pollen tubes growth most likely to evolve? (A) In a self-compatible species with few ovules (B) In a self-compatible species with many ovules (C) In a self-incompatible species with few ovules (D) In a self-incompatible species with many ovules0 AnswerAn African snail brought to Hawaii became a plant-eating pest. To control the African snails, 19 snail-eating species were imported to Hawaii from all over the world. One of the imports, the cannibal snail, has nearly destroyed the native Hawaiian tree snail population:0 AnswerA study found that grazing decreased species richness when productivity was low, and increased species richness when productivity was high. Which of the following figures best represents this result? In the figure, the dotted line represents species richness in grazed plots and the solid line represents species richness in plots without grazing.0 AnswerTwo true-breeding lines of a moth, one with black wings and the other with red wings, are crossed. All of the resulting offspring in the F1 generation had red wings. These offspring are crossed to produce the F2 generation of moths where the expected fraction of moths with black wings in the population is _____ (round off to two decimal places).0 AnswerWhich one of the statements below best describes a plant species with the timing of reproductive events shown in the following figure?0 AnswerCompare, giving reasons, the J-shaped and S-shaped models of population growth of a species. cbse-Biology-class-121 AnswerW hich of the following is NOT a characteristic of r-selected species?1 AnswerConsider the following statements 0 AnswerT he reaction of equimolar quantities of Fe(CO)5 and OH– gives a complex species X which on further reaction with MnO2 gives species Y. X and Y, respectively, are0 AnswerW hich ONE of the following statements is NOT part of the classical Darwinian theory of evolution by natural selection?1 AnswerT he species area relationship of trees in Mudumalai Tiger Reserve is given by S = 0.1 × A0.3, where S is the number of species in a given area A. When log S is plotted against log A, the slope of the resulting relationship is _____ (answer up to 1 decimal place).2 AnswerWhat is the “Himalayan Yew” ?1 Answer
Cubbon ParkCurve FittingCE2259 SURVEY PRACTICAL IIGE 2021 ENVIRONMENTAL SCIENCE AND ENGINEERING COMPUTER NETWORKS I10CS55 unit 8 3 of Fire: ExperiencingSwarm intelligence and traffic safetyCE2257 STRENGTH OF MATERIALS LABORATORYSystem stimulation and modeling [10mca52] question BankCE 2040 ECOLOGICAL ENGINEERING