in a symbiotic relationship
a) both organisms always benefit
b) both organisms are harmed
c) both organisms never benefit
d) at least one organism always benefits
e) neither organisms is affected
d
1:c. 2:d. 3:a. 4:a
To determine the correct answer, let's first understand what a symbiotic relationship is. In a symbiotic relationship, two different species interact and rely on each other in some way. There are three main types of symbiotic relationships: mutualism, commensalism, and parasitism.
In mutualism, both organisms benefit from the relationship. For example, bees benefit from the nectar they collect from flowers, while the flowers benefit from the bees pollinating them.
In commensalism, one organism benefits while the other is unaffected. An example could be when birds build nests in trees. The birds benefit from the shelter and support provided by the tree, while the tree is not harmed nor benefited.
In parasitism, one organism benefits while the other is harmed. A classic example is a tick feeding on a host animal. The tick benefits by obtaining nutrients from the host's blood, while the host is harmed and may suffer from diseases transmitted by the tick.
Based on the explanation above, the correct answer would be (d) at least one organism always benefits. This is because there are different types of symbiotic relationships, and in some cases, both organisms benefit, while in others, one benefits while the other may be harmed or unaffected.
Correct answer: d) at least one organism always benefits
In a symbiotic relationship, at least one organism always benefits. It is possible for both organisms to benefit, but it is also possible for one organism to benefit while the other is unaffected or even harmed.