Answer:
(three) crossing over, mutations caused during crossing over, and independent assortment.
Explanation:
Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase I.
Answer:Were all worthless in this world!!!!!
Explanation:This should be obvious, we only live and then die.
A contractile vacuole works just the same as the name suggests, in that it expands and contracts. The point of the contractile vacuole is to pump water out of the cell through a process called osmoregulation, the regulation of osmotic pressure. It occurs in freshwater protists, but mainly in the kingdom Protista as a whole.
Answer:
Major disadvantage to organic farming are discussed below.
Explanation:
The major Disadvantages of Organic farming:
- Organic food is more costly because growers do not receive as much out of their property as traditional farmers get.
- Making charges are more expensive because growers require more extra labor.
- Retailing and shipping are not effective because organic food is grown in smaller quantities.
I don't know if this helps or not but you would want to know the age of the rock (absolute dating) and from there you will be able to know the age of the fossil and what caused it to die.