which of the following statements describes biological diversity?
A. variety of species within different ecosystems
B. The number of species in an area
C. Variation within the genes of a species
D. variety of ecosystems found in an area.
Answer :
(A). Variety of species within different ecosystem --describes biological diversity.
Explanations : The term "biodiversity" was coined by Walter G. Rosen in 1985, is used for the variety and variability among all forms of living organisms like plants(flora), animals(fauna), and microorganisms present in a given region under natural conditions.
which of the following statements describes biological diversity? A. variety of species within different ecosystems B....
Two different techniques for quantifying species diversity within a community are being compared in order to determine which technique yields the most consistent values. Higher consistency is indicated by lower variation among replicate estimates. Each technique involves employing a particular sampling protocol in the field and then using the results to calculate an index of diversity. Each sampling protocol is repeated six times on the same community, yielding six estimates of the species diversity of that community. The two indexes...
Which of the following statements about species, as defined by the biological species concept, is (are) correct? I. Biological species are defined by reproductive isolation. II. Biological species are the model used for grouping extinct forms of life. III. All members of a species can potentially interbreed. A) I and II B) I and III C) II and III D) I, II, and III
A biological _____ consists of the different species within an
area, typically a three-dimensional space, and the interactions
within and among these species.
community
population
ecosystem
organism
Match the following organisms with the type of method that would be used to measure population density. Bluebonnets B mark and capture skunks live oak tree truffles (a fungus that is a delicacy)
Total abundance describes which of the following? A.The diversity of a community in a site in a specific year B.The total number of species detected in a community C.The total number of individuals of any species found in a community D.The total number of individuals of detected in a site in a specific year
A biological species A. always looks different from other species B. always has a different chromosome number from that of other species C. is reproductively isolated from other species D. never occupies the same niche as other species
Biodiversity Ecologists are interested in quantifying different kinds of biodiversity. In each of the two studies outlined here, which kind of biodiversity are ecologists studying? Ecologists establish 20 small areas, called plots, randomly scattered across a California grassland. They count the number of different plant species present in each plot. By noting how many species appear in the plots, the ecologists are able to estimate the number of species in the entire grassland. a. Genetic diversity b. Functional diversity c.Ecosystem...
Which of the following statements about hypotheses proposed to explain latitudinal gradients in diversity is FALSE? View Available Hint(s) Hint 1. opened hint Although scientists do not know the exact mechanisms underlying the geographic pattern of species diversity, more than 25 different mechanisms have been proposed. Which of the following statements about hypotheses proposed to explain latitudinal gradients in diversity is FALSE? The Pacific Ocean confounds the hypothesis relating species diversity to latitudinal gradients, as it has higher levels of...
Under the biological species concept, which of the following statements is/are true? a) Gene flow can occur between species. b) Species are independent evolutionary lineages. c) Isolating mechanisms prevent gene flow between species. d) Geographic isolation and differences in the timing of mating are two mechanisms that allow populations to genetically diverge. e) Donkeys and horses are not species.
1.Which of the following statements about species-accumulation curves is TRUE? Only gamma diversity can be estimated using species-accumulation curves Species-accumulation curves are a technique to estimate alpha diversity of a relatively homogenous site Species richness will be estimated correctly using species-accumulation curves even if there are only a few samples The order in which samples are processed will not affect the precise shape of species-accumulation curve 2. Which of the following statements about beta diversity is TRUE? Beta diversity does...
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