Top answers

If populations of species become isolated, new species are more likely to develop. Explain why. (2 marks)

The organisms are unable to exchange genes outside of the isolated population. There may be different selective pressures which the organisms must adapt to. This means the features of the species may change ...
HM
Answered by Hannah M. • Biology tutor
3277 Views

Describe the process of phagocytosis

The phagocyte comes into contact with pathogen and phagocytic receptors detect the pathogen as 'non-self'. The phagocyte then binds to pathogen and engulfs the pathogen by the process of endocytosis. This cr...
TU
Answered by Tanzima U. • Biology tutor
2944 Views

What is the role of the kidneys in osmoregulation?

Osmoregulation is the homeostatic control of the water potential of the blood. The kidneys are involved in filtering the blood and deciding which substances to reabsorb and which to excrete as waste. Tiny tu...
Answered by • Biology tutor
32231 Views

How does the process of DNA replication work?

DNA replication is the process by which DNA makes a copy of itself. This happens before cell division so that each daughter cell receives an identical copy of the DNA. In order for DNA replication to occur, ...
CH
Answered by Clare H. • Biology tutor
1576 Views

What is the structure of a biological cell membrane?

The cell membrane is arranged into a polar structure known as a "phospholipid bilayer" which is made up of many phospholipids. The phospholipid has a hydrophilic (water loving) head and two hydroph...
Answered by • Biology tutor
2714 Views