There are six different organisms in the picture above. Organize them into two or more groups AND defend your groups by providing details about why you put them into the chosen groups. YOU MUST HAVE AT LEAST FOUR COMPLETE SENTENCES. (10 points for classifying) (10 points for explanation in complete sentences) *PLEASE HELP ME OR MY DAD WILL HIT ME :(

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step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for