HLT 306V WEEK 4 TOPIC 4 ASSIGNMENT 1
2026 COURSE WORK PAPER QUESTIONS AND
SOLUTIONS GRADED A+
◉ Within a community, species interactions have no effect on
species survival. Answer: False
◉ Corals and their algal symbionts form large colonies in shallow
waters. These then form large reefs that attract fish and other
marine life. These reefs serve as habitat and nursery areas for fish
and other species. Corals would be considered. Answer: keystone
species.
◉ Directional selection. Answer: Right skew
◉ Stabilizing selection. Answer: Bell-shape
◉ Disruptive selection. Answer: 2 apexes
◉ Overlap. Answer: Area where competition is greatest
◉ Right skew into overlap. Answer: range of resources an organism
uses
, ◉ gap. Answer: this shows a reduction in niche breadth after
competition
◉ inside bell. Answer: This is the shift in resource use after natural
selection has taken place
◉ Taxonomists classify all life into three domains according to their
cell structure: Bacteria, Archaea, and Eukarya. Based on the images
shown below the Eukarya domain, label its four Kingdoms within
the Eukarya.. Answer: Bacteria: Eubacteria
Archaea - Archaebacteria
Eukarya - Protists, Plants, Fungi, Animals
◉ The total set of environmental factors that determine a species
distribution within a specific habitat is referred to as its ______ ______..
Answer: ecological niche
◉ Species composition in communities often changes over time.
Place the stages of primary succession in order from earliest (left) to
latest (right).. Answer: 1 - exposed rocks
2 - lichen mosses
3 - grasses, herbs, shrubs, tree seedlings
4 - Aspen, black spruce, jack pine
2026 COURSE WORK PAPER QUESTIONS AND
SOLUTIONS GRADED A+
◉ Within a community, species interactions have no effect on
species survival. Answer: False
◉ Corals and their algal symbionts form large colonies in shallow
waters. These then form large reefs that attract fish and other
marine life. These reefs serve as habitat and nursery areas for fish
and other species. Corals would be considered. Answer: keystone
species.
◉ Directional selection. Answer: Right skew
◉ Stabilizing selection. Answer: Bell-shape
◉ Disruptive selection. Answer: 2 apexes
◉ Overlap. Answer: Area where competition is greatest
◉ Right skew into overlap. Answer: range of resources an organism
uses
, ◉ gap. Answer: this shows a reduction in niche breadth after
competition
◉ inside bell. Answer: This is the shift in resource use after natural
selection has taken place
◉ Taxonomists classify all life into three domains according to their
cell structure: Bacteria, Archaea, and Eukarya. Based on the images
shown below the Eukarya domain, label its four Kingdoms within
the Eukarya.. Answer: Bacteria: Eubacteria
Archaea - Archaebacteria
Eukarya - Protists, Plants, Fungi, Animals
◉ The total set of environmental factors that determine a species
distribution within a specific habitat is referred to as its ______ ______..
Answer: ecological niche
◉ Species composition in communities often changes over time.
Place the stages of primary succession in order from earliest (left) to
latest (right).. Answer: 1 - exposed rocks
2 - lichen mosses
3 - grasses, herbs, shrubs, tree seedlings
4 - Aspen, black spruce, jack pine
