Breakwaters protect an anchorage from the effects of weather and longshore drift, while jetties protect against erosion, by keeping the waves from sweeping the sand away. Difference, they both protect against different things.
Hello,
It usually takes place in the other countries not in the USA.
Hope this helps
Answer:
there are changes in the climate which result in the enviorment changing
i think that the first picture (the one with snow) happened first because it shows the most "natural" of them all, with snow in the beguning and melted into picture number 2 (the gray pic). it shows climate changing resulting in the mountain snow to melt faster and developing into something similar but different.
hope this helps:)
The genetic variation of organisms has three sources they are mutation, gene flow and sexual reproduction.
Explanation:
Genetic variation are caused by mutation , random mating, random fertilization and recombination between homologous chromosomes during meiosis.
It is a variation in alleles and genes, among the populations. There is a genetic variation within the family of closely- related individuals. If it is a neighborhood there are many families and there is also genetic variation among that group.
An exact genetic copy of the parent organism is produced in asexual reproduction. It only introduces the genetic variation into the population if a random mutation in the organism's DNA is passed on to the offspring.
In Emphysema, one form of chronic obstructive pulmonary disease (COPD), alveolar walls breakdown, alveoli fuse creating more open spaces, and the lungs lose their elasticity. The result is "trapped air" which becomes difficult to expel upon expiration, thus an expiratory condition.
