Top answers

How has the camel [shown, with summarising information] adapted to survive the desert? Briefly explain adaptation by natural selection.

Answers can include: lomg eyelashes and closing nostrils to protect from sand in the wind, large eyebrow ridge and thick eyebrows to protect from sun, thick fur to contain heat during cold nights, sandy colo...
RH
Answered by Ruth H. • Science tutor
4382 Views

A perfect sphere of lead has radius 6 cm, and weighs 1710 grams. What is its density? Give your answer in g/cm^3. [Density = mass/volume]

To find the density, we need to divide mass by volume, and we already know the mass, so must find the volume. V = 4/3.pi.r^2, and plugging in r=6 gives V = 48.pi, about 150.8 cm^3. The mass is 1710, which we...
RH
Answered by Ruth H. • Maths tutor
4357 Views

Computer Memory consists of ROM and RAM. Please explain the difference in the two types of memory.

ROM stands for Read Only Memory and RAM stands for Random Access Memory. ROM is non-volatile which means that it stores the information on it permanently and read-only. It stores the information and instruct...
SE
Answered by Sarah E. • ICT tutor
5710 Views

Factorise and solve x^2 - 8x + 15 = 0

x^2 - 8x + 15 = 0 (x - 5) (x-3) = 0 x = 5 or x = 3
FC
Answered by Flora C. • Maths tutor
3549 Views

Explain how allopatric speciation can lead to the formation of 2 species from an ancestral species?

The ancestral species is split into two populations by a geographic barrier, which prevents gene flow. Mutations arise which causes genetic variation between the populations. There are different environmenta...
SH
Answered by Seb H. • Biology tutor
3057 Views