Top answers

Compare and contrast the cell structure of animal, plant and bacterial cells

Animal cell:organelles: nucleus, ribosomes, mitochondria, cytoplasm and cell membrane size: Most are 5 μm – 100 μmPlant cell: organelles: nucleus, ribosomes, mitochondria, cytoplasm ,cell membrane, chloropla...
ZU
Answered by Zahra U. • Biology tutor
3335 Views

How do species change over time?

Species change over time by a process called natural selection. This is commonly associated with Darwin, as he wrote about it in his book "On the origin of species". Evolution (the change of a spec...
EG
Answered by Ellora G. • Biology tutor
4089 Views

Describe the process of Eutrophication.

Eutrophication occurs when mineral ions from the soil such as nitrates are leached (washed away by the rain) and they run into rivers, lakes and ponds. This increase in nutrients into the water causes an inc...
EP
Answered by Emma P. • Biology tutor
10626 Views

What are the differences between diffusion and active transport?

The key difference between these two processes is that diffusion is the movement of particles from a region of high concentration to a region of low concentration, whereas in active transport the molecules m...
CH
Answered by Charlotte H. • Biology tutor
2971 Views

What are three organelles found in a plant cell not found in prokaryotic cells?

Nucleus - In eukaryotes the nucleus contains most of the DNA and also directs chemical processes of the cell. Prokaryotes do not have nuclei.Mitochondria - Most eukaryotic cells have mitochondria which are t...
MD
Answered by Myles D. • Biology tutor
4519 Views