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Are there fun ways to learn German?

Language learning doesn’t have to be a tedious task of memorising verb tables (at least not all of the time).Duolingo: https://www.duolingo.com/One fun way of practising German is Duoling...

Answered by Nina M. • German tutor

3846 Views

When do I use "sein" in the perfect tense?

In German the perfect tense is formed with haben/sein + past participle. The majority of verbs use haben in the perfect tense (such as Ich habe gespielt – I played). Transitive verbs (ve...

Answered by Nina M. • German tutor

6231 Views

The area of a square is 49cm^2. The perimeter of the square is equal to the circumference of a circle. Work out the radius of the circle. Give your answer to 1 decimal place.

Area of a square (A_s) = Side length (L)²

L = square root A_s

L = square root 49

L = 7 cm

Perimeter (P) = 4L

Answered by William D. • Maths tutor

15763 Views

Explain how natural selection can lead to new species forming (speciation)

Within a gene pool of a population, there is genetic variation, due to mutation. This leads to phenotypic variation. Some individuals will be better adapted to the environment than others and will ther...

Answered by William D. • Biology tutor

36286 Views

What is natural selection?

Within a population of a species there is great geetic variation giving rise to variation in their phentoypes. Some phenotypes enable an organism to be better adapted to its environment than other memb...

Answered by Sabrina A. • Biology tutor

4320 Views