biology

Questions and Answers

Is an egg already hard when it is laid?

Questions and Answers

How long can you keep a boiled egg in the refrigerator?

Questions and Answers

Why is a dog not a noble animal?

Questions and Answers

What is the origin of the name ‘blind fly’?

Questions and Answers

Of which plant, which is hardy, is this a photo?

Questions and Answers

Which beetle is this?

Questions and Answers

Which beetle is this?

Questions and Answers

The hairs of the polar bear’s fur are hollow, but are these hairs also transparent?