In a family with two brothers, one brother's thumbs are straight while the
other's thumbs are bent. the most likely reason for this difference is that the
brothers:

typically, most spiders possess eight eyes. however, others have as many as 12, and some don't have any. these eyes are for detecting light from dark, deciphering shapes and for gathering their prey.

condensation. good luck!

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.