5. A collector of rare items is negotiating with a museum. He wants to sell a stake he claims to be one that was made to
kill Dracula in the 1400s. A stake size would have started
with around 2 g of carbon-14, and the museum tests show it
now contains around 1g.
a. How many half-lives have passed since the stake was
carved?
b. How long has passed since the stake was carved?
c. Is the stake what the salesman claim?
6. Why is carbon dating not very useful for dating the remains
of dinosaurs?

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation:

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.

the answer is 95 degrees