-CONEXUS-

Science 7 B:Symbiosis
1-C-commonsalism
2-D-parasitism
3-A-mutualism
4-A-one helped in both cases

I just took the quick check and got them all correct! Good Luck!

Congratulations on getting all the answers correct! It seems like you are working on a science topic related to symbiosis. Symbiosis refers to the close relationship between two different species living together and interacting in some way.

In the given options, the correct answers are:

1-C: Commensalism
Commensalism is a type of symbiotic relationship where one organism benefits, while the other is not harmed or benefited. It's like a one-sided benefit.

2-D: Parasitism
Parasitism is a type of symbiotic relationship where one organism called the parasite benefits at the expense of the other organism called the host. The host is harmed in this relationship.

3-A: Mutualism
Mutualism is a type of symbiotic relationship where both organisms involved benefit from each other. It's a mutually beneficial relationship.

4-A: One helped in both cases
This seems to be a specific option related to the situation or context of the question. Without further information, it's difficult to give a precise explanation. However, based on the given options, the best answer for this option would be Mutualism (Option A) since both organisms benefit from each other.

It's great to see that you aced the quick check! If you have any more questions or need further explanation, feel free to ask. Good luck with your studies!