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Describe the differences in internal morphology that can be seen between a Nautilus and Ammonite

in nautiloids septal necks are retrosiphonate (point towards the protoconch / centre OR away from the aperture)in ammonoids septal necks are mainly prosiphonate (point towards the aperture OR away from the p...
VG
Answered by Victoria G. • Geology tutor
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Describe how phagocytosis of a virus leads to the secretion of an antibody against this virus antigen.

Phagosome/vesicle fuses with lysosome;(Virus) destroyed by lysozymes/hydrolytic enzymes;Peptides/antigen (from virus) are displayed on the cell membraneHelper T cell/TH cell binds to the antigen (on the anti...
VG
Answered by Victoria G. • Biology tutor
3800 Views

Suggest and explain two ways the cell-surface membranes of the cells lining the intestine may be adapted to allow rapid transport of nutrient

Membrane has increased/large surface area for (fast) diffusion/facilitated diffusion/active transport/co-transport;Large number of protein channels/carriers (in membrane) for facilitated diffusion;Large numb...
VG
Answered by Victoria G. • Biology tutor
4457 Views

Why do men and women speak differently?

Do men and women really speak differently? If so, why? Let's take a look! Men are from Mars and women are from Venus? Gender difference theory explained: Gender difference theory is modelled on the idea that...
PC
Answered by Polly C. • English tutor
9934 Views

The United Kingdom uses First Past The Post ('FPTP') voting. Highlight some advantages and disadvantages of this system.

First Past The Post is considered a 'pluralist' voting system, in that all eligible voters have a single vote to cast, and the recipient of the highest number of votes (a 'plurality') wins outright. For exam...
RH
Answered by Rory H. • Politics tutor
4051 Views