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.

Q: When there are no one in-between, example tounge twisting.  A. sexual variation B. Discontinous…

A: Due to some gene and chromosomal rearrangement, Embryo or  zygote or a newborn baby is different…

Q: Birds are more likely to form pair-bonds than mammals because … Group of answer choices: A. Bird…

A: Pair bond is a mating pair of male and female that serves great importance in species.

Q: Which of the following is an advantage of sexually reproducing populations over asexually…

A: The process of the formation of new organisms from existing organisms is called reproduction. There…

Q: When populations are drastically reduced in size, genetic diversity and heterozygosity a. are…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: Which of the following statements does not support the conclusion that giraffes are k-selected…

A: The individuals of the same species that reside in a common geographical habitat make-up a…

Q: A new species is discovered in which males care for offspring after birth, and females leaves the…

A: Most of the time we saw that females care  their offspring , but sometimes both the partner involve…

Q: Courtship rituals are thought to have come about througha. intrasexual selection.b. agonistic…

A: The courtship display is a display behavior set in that an animal generally male attempts to attract…

Q: cies, the mimic always   Select one: A.  Possesses the defense of the model. B.  Is brightly…

A: Mimicry is a process in which there is copying of one organism by other organism so that the one who…

Q: In an experiment in which resource allocation was studied in ovariectomized and sham-operated brown…

A: The correct answer is - B. Allocation to reproduction enhanced the growth and survival of the brown…

Q: Which of the following is not an adaptive feature of an opportunistic life history pattern?a. many…

A: There is a specific pattern of the reproductive events and survival of the different species which…

Q: Imagine an altruistic behavior where the direct fitness cost to a donor is 6 and the indirect…

A: When an organism incurs a cost including the possibility of death in order to improve the fitness of…

Q: Geographic distribution can cause rarity in a species. a. True b. False

A: Since you have asked multiple questions, we will answer only the first question for you. If you want…

Q: Elephant Seals have a polygynous mating system, in which a few males mate with many females while…

A: Elephant seals are carnivorous mammals that are found in the Americas. These seals live in colonies.…

Q: Whichof the following statements concerning lion cooperative living is false?a.Larger coalitions are…

A: A community is an interactive group of different species located in a commonplace. A group of…

Q: Which statement about prezygotic barriers is false?

A: Prezygotic barrier  These are the barrier that prevents the fertilization of egg. These include…

Q: Fecundity is defined as the number of offspring produced pera. mating.b. brood.c. year.d.…

A: Reproduction is the phenomenon of producing offspring from the parent. The reproduction can be…

Q: Make guarding is a reproductive tactic that functions to directly:  A. Increase the number of males…

A: Mate guarding is a term used to describe male and female behaviours aimed at preserving reproductive…

Q: Decline of grey wolf populations in the US northwest in the early 1900s resulted in ______ of elk…

A: In the early 1900s, the decline of grey wolf populations in the US northwest was primarily due to…

Q: Primates are examples of: a. density-dependent species b. density-independent species c. r-selected…

A: K-selected species possess relatively stable populations fluctuating near the carrying capacity of…

Q: Gene flow depends on a. migration. b. the ability of migrant alleles to be passed to subsequent…

A: The branch of science that is concerned with heredity, the study of genes and genetic variation is…

Q: The wings of a bird are analogous to which of the following? a. Lobster claws b. Whale flippers c.…

A: Analogous organs are organs that have different origin and different structures but perform same…

Q: You want to estimate the population size of giant squid. You go out a catch 10 giant squid and put…

A: MARK RECAPTURE MODEL   Total marked.    = M Population size. =N Number of recaptured ones = m…

Q: _____ is a term describing species that are in danger of becoming endangered.  a. extinct b.…

A: The IUCN Red List is the most sought after list which gives an account of the conservation status of…

Q: Deviation from a purely monogamous mating system is likely when _________.   A. resources are…

A: The life process of the formation of a new organism from existing organisms is called reproduction.…

Q: The“net reproduction rate” equals:a.(x lxmx)/R0.b.nx.c.lx mx.d.x lx mx.e.none of the choices apply.

A: Introduction  A population is the smallest unit of any ecosystem which collectively includes the…

Q: Noisy begging by nestlings to be fed by a parent is said to be an honest signal when it entails high…

A: Nestling begging  Nestling beg for parental care, security and food. But this can attract attention…

Q: Under a simple model, the evolution of asexual reproduction strategies will take over a population.…

A: Prokaryotes are the single celled organisms (unicellular) and are the simplest form, which do not…

Q: Hippopotamus were introduced into a lake in central Africa. Grazing by Hippo resulted in an increase…

A: The niche of the hippopotamus encompasses various roles and interactions within its ecosystem. As…

Q: Monarch butterflies are a migratory species that flies south once during the lifetime of an…

A: Monarch butterfly migration is the phenomenon, mainly across North America, where the subspecies…

Q: In Animal Dispersion in Relation to Social Behaviour, V.C. Wynne-Edwards suggested that animals act…

A: V.C. Wynne-Edwards was an English Zoologist, who formulated the theory of group selection. He had…

Q: Please select all of the answers that are  reasonable interpretations of this figure looking at the…

A: The figure refers to examines the relationship between seed mass and seedling mortality across…

Q: Compared with larger subpopulations, smaller subpopulations within a metapopulation are more likely…

A: Metapopulation is a group of spatially isolated population of the similar species that shares an…

Q: 1. Competition (leading to extinction), between flour beetles feeding on wheat flour, could lead to…

A: Flour beetles are the beetles found in the flour. You might have seen in your house too. It plays an…

Q: history tradeoffs) can best be described as __________.   A. an organism's allocation of resources…

A: Life history strategies can be defined as an organism's allocation of resources to reproduction. It…

Q: When we say that an individual organism has a greater fitness than another individual, we…

A: An ecological adaptation is any physical, psychological, or morphological characteristic of an…

Q: When one species mimics another species, the mimic always Select one: A. Is brightly colored. B.…

A: Ans: B looks like model

Q: RobertMacArthur’s study of forest warblers suggested that:a.fewer warbler species can survive in…

A: Another factor in the great diversity of the rainforest is the scale of the ecosystem. Since a…

Q: Predators that are specialists usually have a population abundance: a. That is usually very small. O…

A: The population abundance is majorly affected by climatic factors of a particular area .

Q: All snakes belong to the Order Squamata. What other taxonomy levels would all snakes belong to?…

A: Classification is the process of categorizing organisms according to their specific characteristics.…

Q: Which of the following statements is a reason why females are usually the "choosier" sex?   A. They…

A: Introduction :- Sexual selection is the selection of traits that do not increase the survival…

Q: Which of these situations offers the lowest “opportunity for selection” for males?

A: Some situations are there due to which lowest opportunity of selection is offered for males.

Q: Selective pressures are those aspects of the environment that determine whether a gene mutation is…

A: Selective pressure acts on the allele which provides benefit for survival and hence aids in…

Ecological Interactions

The study of the ecological interactions between living beings and their physical environment, including humans, is ecology. It aims to understand the crucial links between plants and animals and the world around them. Ecology also gives knowledge on the advantages of ecosystems and how we may use Earth resources to ensure that future generations have a healthy environment.