Kapitel 16 popu
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Kapitel 16 popu - Marcador
Kapitel 16 popu - Detalles
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17 preguntas
| 🇬🇧 | 🇬🇧 |
| In a forest community, the upper layer is called the ________. | Canopy. (For temperate forest: I midten - the understory, næste nederst - ground cover og nederst - forest floor). (For tropical savanna: Øverst - tree layer, midten - grass layer og nederst - soil surface). (For lake: Øverst - Photic layer, midten - aphotic layer og nederst - benthic layer). |
| Which of the following is considered a guild? - coniferous forest - top predators - mammals - insect-feeding birds | Insect-feeding birds |
| The garter snake in this diagram is an example of a(n) | Intermediate species. ( Rækken i et fødenet: Basal species, intermediate species og top predators). |
| Which description is true for most communities? All species have approximately equal abundances, All species are common, All species are rare or A few species are common and the remainder are rare? | A few species are common and the remainder are rare. |
| The relative abundance of a tree with 100 individuals in a community of 1000 would be ( a number) | 0,1 |
| Communities with low evenness will have rank-abundance curves | That are very steep. |
| When an ecologist compares the diversity of different communities by counting the number of species within each community, the measure of diversity being used is called | Species richness. The number of species in the community. (Species diversity involves two components: species richness and species evenness, which reflect how individuals are apportioned among the species (relative abundances). |
| Within a community, a group of species that carries out similar functions or exploits the same resource is called a(n) ________. | Guild / functional group |
| In a food web diagram, groups of species that derive food energy from a similar source are called ________ levels. | Trophic levels. |
| When a single or a few species are most prevalent in a community, the species are called ________. | Dominants |