Some people have attached ear lobes and some people have free ear lobes. The differences in these traits are caused by
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differences in environment.
differences in personality.
differences in diet.
differences in genes.
differences in genes.
Relationships between organisms may be beneficial or detrimental. Which of the following examples shows a relationship in which both organisms benefit?
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A tick attaches itself to the skin of a dog and takes a blood meal.
A female black widow spider Latrodectus mactans mates with a male spider; then, she consumes him.
An African wasp Certolsolen arabicus pollinates a fig tree Ficus sycomorus as it eats the tree's nectar.
A species of hyena known as the aardwolf consumes termites for nourishment.
An African wasp Certolsolen arabicus pollinates a fig tree Ficus sycomorus as it eats the tree's nectar.
Many animals, including the brittle star and snapping shrimp, make their homes inside sea sponges. Here, the animals not only find safe shelter, but also have a constant flow of well-oxygenated water, and may even eat the substance produced by the sponges. The sponges are not affected in any way by the presence of these animals.Which type of relationship does this represent?
parasitism
predator/prey
mutualism
commensalism
Commensalism.
The Canadian lynx is a large wild cat that lives in the cold regions of Canada. The snowshoe hare is the main prey species that is hunted by the Canadian lynx. The snowshoe hare eats grass, fern, and leaves.If the population of Canadian lynx were to completely disappear, what would most likely happen to the food supply of the snowshoe hare?
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The population of snowshoe hare would decrease, and there would be more food available.
The snowshoe hare would stop eating grass, so there would be less food available.
The snowshoe hare would start eating each other, so the food supply would not be affected.
The population of snowshoe hare would outgrow the food supply, so there would be less food available.