In 2015, scientists calculated a population of crabs living on a rocky shore to be 1,290. Last week, it was measured as 1,391 individuals. Which of the following supports this conclusion?

2,681

Explanation:

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.