A. The sun, because there has been theory’s of the sun being able to heat earth from there being a lot of iron in the middle of earth.
Answer:
Vaccinations
Explanation:
For example, if a disease has an R0 of 18, a person who has the disease will transmit it to an average of 18 other people. That replication will continue if no one has been vaccinated against the disease or is already immune to it in their community. So if you have (for example) a vaccination then you're less likely to get it, resulting in a lower R0
Answer:
false
Explanation:
Phytoplankton are from the water and not found on land.
Spindle fibres are important for assembling the chromosomes at the centre of the cell. Without this the chromosomes would not align and the stages cannot procede. Therefore the cell would not divide
