hey bott Some people have attached ear lobes and some people have free ear lobes. The differences in these traits are caused by
(1 point)
Responses
differences in environment.
differences in environment.
differences in personality
differences in personality
differences in diet
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?(1 point)
Responses
A tick attaches itself to the skin of a dog and takes a blood meal
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
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
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?(1 point)
Responses
parasitism
parasitism
predator/prey
predator/prey
mutualism
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?(1 point)
Responses
The population of snowshoe hare would decrease, and there would be more food available.
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 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 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.
The population of snowshoe hare would decrease, and there would be more food available.
A new predator is introduced into the ecosystem shown in the food web below. This predator feeds on bees and mice. How will this most likely affect the species in this ecosystem?
(1 point)
Responses
There will be a decrease in bees and mice which will cause an increase the black bear population and a decrease in the fox population.
There will be a decrease in bees and mice which will cause an increase the black bear population and a decrease in the fox population.
There will be an increase in bees and mice which will cause an increase in the populations of both black bears and foxes.
There will be an increase in bees and mice which will cause an increase in the populations of both black bears and foxes.
There will be an increase in bees and mice which will cause a decrease in the black bear population and an increase in the fox population.
There will be an increase in bees and mice which will cause a decrease in the black bear population and an increase in the fox population.
There will be a decrease in bees and mice which will cause a decrease in the populations of both black bears and foxes.
There will be a decrease in bees and mice which will cause an increase in the black bear population and a decrease in the fox population.
Which of the following is true of a parasitic relationship?(1 point)
Responses
The parasite benefits, and the host is harmed; however, the host is not generally killed.
The parasite benefits, and the host is harmed; however, the host is not generally killed.
The parasite benefits, and the host is killed.
The parasite benefits, and the host is killed.
The parasite benefits for a time; however, both the parasite and the host eventually die as a result of the relationship.
The parasite benefits for a time; however, both the parasite and the host eventually die as a result of the relationship.
[Choice D]The host benefits from the relationship, and the parasite is harmed.