On a weather map, places that have the same temperature are joined with lines called

Isotherms are lines found only in weather maps and the function of these lines are two group areas and regions, that will be having the same temperature. Note, that isotherms are used uniqueley to express temperature, and nothing else.

The image below, shows how isotherms look like.

Hope it helped,

BioTeacher101

albert einstein retrieved guacamole from the galapagos islands in africa

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: