Heresy! Millipedes are not insects, aaaarrrrgh. That question must be replaced. Also, Nymph should be accepted for pupa and caterpillars can become butterflys.
Indeed, all insects are hexapods. Their subphylum is called hexapoda. Millipedes have about 769 too many legs, and lack the three distinct body sections of insects (see the question about what comes between the head and abdomen).
Many insects have a life cycle of egg-larva-pupa-adult. Some of these insects are:
Coleoptera: beetles
Hymenoptera: bees, wasps, ants, sawflies
Lepidoptera: butterflies, moths
Diptera: flies
Nymphs are more synonymous with larva and are only in "simple metamorphosis" which is basically where the baby insect resembles the larger insect, only smaller. Since flies begin as maggots and go through a complete metamorphosis, pupa is reserved for this type of metamorphosis. Thus, nymph should not be accepted.
Agree. Usually moths come from cocoons, butterflies come from chrysalises. Butterflies molt into a chrysalis that hardens while moths spin an outer-structure cocoon around themselves.
If "moth" is the correct answer, a more generally correct answer that would cover both butterfly and moth is "imago," the final stage of maturation, particularly among winged insects. (Thank you Bioshock 2).
Your definition of imago is spot on but it's not unique to moths and butterflies so it's really not specific enough for this question. All adult insects can be referred to as an imago.
"Lepidopteran" in reference to the Order name for moths and butterflies (Lepidoptera) would be a better word to encompass them both :)
There are many quizzes where I am doing great and almost done with the answers, and then comes a stupid, hard and, to some extent, irrelevant question like "what crops do boll weevils eat?"
Oh dear! It seems that some of these trivia questions may be irrelevant!
On a more serious note, I think it's important for quizzes like this to have at least one "challenging" question. They should be able to distinguish between folks that really know this stuff and those who are generally knowledgeable but not in this area specifically. I usually don't get the challenge question right unless I really know that field, but I don't feel sore about it.
If you use cotton sheets, clothing, toweling, etc. that question shouldn't be irrelevant to you. if the boll weevil was not controlled, likely the price of your cotton goods would be higher. I live in a cotton-producing area and we are quite used to seeing cotton farmers check the boll weevil traps at the edges of their fields - the count lets them know whether or not they need to spray. Don't forget where your food and clothing comes from and the steps that are gone through to bring it to you.
Many insects have a life cycle of egg-larva-pupa-adult. Some of these insects are:
Coleoptera: beetles
Hymenoptera: bees, wasps, ants, sawflies
Lepidoptera: butterflies, moths
Diptera: flies
Nymphs are more synonymous with larva and are only in "simple metamorphosis" which is basically where the baby insect resembles the larger insect, only smaller. Since flies begin as maggots and go through a complete metamorphosis, pupa is reserved for this type of metamorphosis. Thus, nymph should not be accepted.
"Lepidopteran" in reference to the Order name for moths and butterflies (Lepidoptera) would be a better word to encompass them both :)
On a more serious note, I think it's important for quizzes like this to have at least one "challenging" question. They should be able to distinguish between folks that really know this stuff and those who are generally knowledgeable but not in this area specifically. I usually don't get the challenge question right unless I really know that field, but I don't feel sore about it.