Which one of the following is the correct statement about the respective animal(s)?

1. Donkey and horse should be considered one single species because they can successfully mate and produce an offspring.
2. Donkey and horse are two different genuses.
3. Mule is a separate species.
4. Mule is neither a donkey nor a horse

Which of the following is the lowest category among the levels of classification ?

1. Class
2. Family
3. Order
4. Genus

Which of the following organisms is chlorophyllous ?

1. Penicillium
2. Euglena
3. Paramecium
4. Toadstool

Cycads and Conifers are two types of-:

1. Gymnosperms
2. Pteridophytes
3. Angiosperms
4. Bryophytes