Classify these examples of symbiosis by type and explain your choice: 1) inside a human’s intestine live bacteria that make vitamin k; 2) a human picks up bacteria on his or her hands. the bacteria do not cause disease but do feed on the human’s dead skin cells; 3) a tick attaches itself to a human and feeds on the human’s blood.

The right matches are:

1. is Mutualism

2. is Commensalism

3. is Parasitism

Mutualism is an interaction between two species, in which both organizations benefit from this relationship. This is called a mutual benefit interaction. However, mutualism in the strict sense is not a binding relationship between the individuals involved.

Commensalism is a type of natural and frequent or systematic biological interaction between two living beings in which the host provides some of his own food to the commensal.

Parasitism is a biological relationship between two living beings where one of the protagonists (the parasite) takes advantage of a host organism to feed, shelter or reproduce.

correct answer: false

while planning water activities, it is very important to consider the weather, because if we do not plan and are going for a surf, then it might be that the hurricane came and drown us or may carry us to long distance from where we can not come back. there are many reasons to take information about the weather when we are planning any water activities.

hence, the correct answer would be false.