S7 Q2 M5 L5.2 Summative Assessment

Master ecological relationships: mutualism, parasitism, competition & more! Grade 7 science.

Ticks carry bacteria that cause Lyme disease. Ticks do not get Lyme disease, but they can transfer the bacteria to humans, who can get the disease. Which of the following statements best describes the relationships among the bacteria, the ticks, and the humans? The relationship between the bacteria and the ticks is competition, and the relationship between the ticks and the humans is parasitism. The relationship between the bacteria and the ticks is competition, and the relationship between the ticks and the humans is predation. The relationship between the bacteria and the ticks is commensalism, and the relationship between the ticks and the humans is predation. The relationship between the bacteria and the ticks is commensalism, and the relationship between the ticks and the humans is parasitism. The interaction between a flower and the hummingbird that feeds on its nectar is an example of Mutualism because the flower provides the bird with food and the bird pollinates the flower Predation because the insect feeds on the flower Parasitism because the insect lives off the flower’s nectar Commensalism because the bird does not harm the flower and the flower does not benefit from the bird Which of the following correctly describes the relationship between an orchid and a tree? The orchid and the tree both benefits from the relationship. the orchid is harmed while the tree is benefitted. the orchid is benefitted while the tree is harmed. The orchid is benefitted while the tree is unaffected. Which of the following describes parasitism? fern plant growing on a trunk of a tree barnacles sticking on the shell of an oyster an insect larva staying on the leaves of a plant an orchid living on a trunk of mahogany tree The ecological relationship between a hawk and a rabbit is the same type of relationship as that between _. a bee and a flowering plant. a tick and a deer. a mouse and a chipmunk. a frog and an insect. A clownfish uses a sea anemone as a safe place to live. While living there, the clownfish lures in food for the anemone. This is an example of what type of relationship? parasitism commensalism mutualism amensalism Many lichens are composed of fungi and algae. The fungi get sugars from the algae, and the algae get water, minerals, and proteins from the fungi. Which of the following terms best describes the relationship between the organisms in the lichens? commensalism competition parasitism mutualism Which of the following ecological relationships is demonstrated by a python crushing a piglet and swallowing it whole? mutualism parasitism competition predation Two birds seeking the same food is an example of _. competition predation parasitism cooperation The nuthatches and brown creepers, forage on the same trees for insects in the forest of North America. Brown creepers feed on insects found near the bottom of the tree trunk, while nuthatches feed on insects in the top part of the tree. The difference in foraging behavior most likely affects the nuthatches and brown creepers by - reducing competition between the birds for resources allowing the birds to avoid many types of predators preventing the birds from interbreeding with each other establishing dominance between the birds for nesting sites