But 'strawberry is not a vegetable' sounds very awkward in English - you could say 'A strawberry is not a vegetable' but the Portuguese is lacking the indefinite article 'um', it seems to be speaking in a more general sense, in which case 'strawberries' is more natural in English, even though it's not a literal word-for-word translation. Hope that's helpful :)
You could say either "morangos nao sao um vegetal" or "o morango nao é um vegetal". (Sorry for the lack of graphic accent. <- very important in Portuguese!)
"Morangos não são vegetais" would be correct, not with "um vegetal" in the end! Adjectives must be said and written in plural when the noun is plural too, just like verbs.
I think the major issue here is that Duolingo, being a program, lacks the capacity to solve problems related to not word-to-word translations. I guess in cases like these it is fundamental to look to the comment section and just be open minded. No one expects you to master a language just by studying on Duolingo, you still need face to face practice ;)
I hope you're kidding, but just as a matter of clarification ;-) strawberries are vegetables, like any other fruit.
The botanical and culinary meanings of fruit/vegetable are very different. It is true that having seeds biologically makes you a fruit. In fact, pumpkins are a berry, botanically speaking. There doesn't seem to be a strict definition of vegetable though, other than edible plants.
This argument is a perfect example of how people fail to take into account different perspectives.
In the kitchen strawberries are used as a fruit, and therefore they are a fruit.
To a botanist strawberries are A peculiar type of fruit, called an aggragate accessory fruit. Most fruits are the ovaries of the plant. Strawberries in contrast are derived not from the plant's ovaries but from the receptacle that holds the ovaries, in other words, from the cone of the flower. That is why the seeds are on the outside, instead of on the inside. In the case of the strawberry, the ovary is actually surrounding the seeds themselves. (Therefore, they are not a berry, except in the kitchen, where they are used as a berry, and therefore are a berry.)
Wars have been fought over equally insignificant debates. The US courts once even got involved in the issue of whether a tomato is a fruit or a vegetable. (Of course, to the chef, they are a veggie, but to the botanist they are a fruit, just like eggplant and peppers.) I find it a bit comical to observe the passion in this debate, but at the same time a bit disturbing.
I think you need to ask them directly through "report an error". They are less likely to search the discussion section for errors. =]
Be careful with this one, strawberries are little compared to watermelon, we would much rather put it as plural. Strawberries are not a vegetable. If one would not be a vegetable, then wouldn't all of the strawberries not be a vegetable?
I think what's most interesting about strawberries is that they grow seeds externally and not internally like most other fruits. And the real question should be...are they really "berries"?
I have cosen vegetable and not vegetables because there vas no choice in offered words and then it tells me I was wrong. An error in the app
You would have to use the verb in the plural, agreeing with the subject: Os morangos não são um vegetal.
is there a certain difference between vegetal and legume? or is this a brasileiro thing?