DOL - 2/5 - Competition

In mutualism, both species ​ (a)   , whereas in competition both species are ​ (b)   . Competition often leads to the evolution of new ​ (c)   .

• benefit
• harmed
• traits
• colors

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NGSS.MS-LS2-2

NGSS.MS-LS4-4

In an ecosystem, members of the lizards are observed eating members of the insect population.  In this same ecosystem, birds are also observed using insects as a food source.  The relationship between lizards and birds would best be described as –

• predator
•  competitive
• parasitic
• mutualistic

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NGSS.MS-LS2-2

The ecological niches of three bird species are shown in the diagram to the right. What is the advantage of each bird species having a different niche?

• Predators are less likely to feed on birds in a variety of locations.

• More abiotic resources are available for each bird.

• As more birds feed higher in the tree, available energy increases.

• There is less competition for food.

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NGSS.MS-LS2-1

Certain gastropods, like snails, produce hard shells for protection. After the gastropods die, these shells are left behind when the soft tissue is decomposed. Hermit crabs are able to use the empty shells as shelter and protection for themselves. The relationship between gastropods and hermit crabs is best described as –

• Parasitism

• Mutualism

• Predation

• Commensalism

A bird builds a nest in a tree without affecting the tree

• Mutualism

• Commenalistic

• Parasitio

• Predatory

A spider gains nutrition by devouring a cricket

• Mutualism

• Commenalistic

• Parasitic

• Predatory

According to the graph, which statement describes the relationship between the mites and the honeybees?

• The mites are parasites of the honeybees.

• The mites and honeybees both benefit from living together.

• The honeybees are unaffected while the mites benefit from the relationship.

• The honeybees have an advantage over the mites when competing for the same resources.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4