Concept explainers
a.
To draw:
The general shape of age and structure diagrams characteristics of (a) expanding, (b) stable and (c) shrinking population. And also explain why an individual can predict the next several decades of growth by the current age structure of populations.
Introduction:
Age structure graph is also called as population pyramid that shows the distribution of different age groups individuals within a population. Vertical axis of graph shows the different age groups of an individual while horizontal axis shows the gender of an individual. This diagram is used to predict the age distribution and growth of future population.
b.
To determine:
The general shape of age and structure diagram characteristics of a stable population.
c.
To determine:
The general shape of age and structure diagram characteristics of shrinking population.
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Biology: Life on Earth with Physiology (11th Edition)
- Put the steps of eutrophication in order. Algae sink to the bottom. Nutrients enter a lake; algae productivity increases. Decomposition increases rapidly. Biological (Biochemical) Oxygen Demand rises. Heterotrophic species die. Dissolved oxygen plummets. Algae exceed K as light becomes limiting. estion 33 (Mandatory) (2 points)arrow_forwardA certain morphological trait is used to construct a phylogenetic tree of three species (1, 2, and 3). Match each scenario with the correct corresponding tree. Species 1: No Species 2: Yes 1 1. 2 Species 3: Yes 3 Species 1: Yes 3 2. Species 2: Yes 2 1 Species 3: No 1 3. Species 1: Yes 3 2 Species 2: No Species 3: Yes Review Stuff Question 26 (Mandatory) (4 points) Species diversity is sometimes maintained or facilitated by... (CHOOSE ALL THAT ARE CORRECT). ر 8 DII 8 A 510 E F11 3 € F12arrow_forwardUse the picture below to identify ALL the correct statements. Note: (a) is on the top; (b) is on the bottom. Lizard Bird Mammal (a) Mammal-bird clade Four-chambered heart Lizard Bird Mammal Four-chambered (b) Lizard-bird clade SO heart Four-chambered heart According to (a), birds evolved from mammals. With respect to the number of heart chambers, (a) is more parsimonious than (b). According to (b), birds and lizards more recently shared a common ancestor than mammals and birds. According to (a), birds and mammals more recently shared a common ancestor than birds and lizards. The current thinking is that (b) is more correct than (a). Question 15 (Mandatory) (2 points) F4 a F5 응 85 6 A F6 &7 DII DD A F7 F8 F9 F10 80 9 ) O F11 Ŷ E + F12 deletearrow_forward
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- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning