The variation of life forms in an environment.

operated by largely automatic equipment. To use machines to do tasks instead of people.

action of collecting.

biological community of interacting organisms and their physical environment.

denoting instrument or device used to ascertain size of something. To calculate size, weight or temperature of.

Of the natural world of plants and animals.

painting or drawing. To imagine someone or something in an image.

including all elements or aspects. comprehensive school.

act or process bringing change. Exchanges of one set of clothes for another. To exchange one kind of money for another.

half-pillar or half-pier attached to wall to support arch. To have a good reaction to e.g. medical treatment.

having or showing strong desire and determination to succeed.

Typical or normal; usual; ordinary. number expressing the central or typical value in a set of data. To add numbers then divide by the number of items.

Someone who assumes leadership of a movement or activity; sheep that leads the herd often wearing a bell.

calculation or estimate of future events. Predictions of some future things e.g. the weather. To predict some future thing, e.g. the weather.

planned or conceived in detail for specific purpose. To plan in a particular way to fulfill a purpose.