Answer:
Each year, the tree forms new cells, arranged in concentric circles called annual rings or annual growth rings. These annual rings show the amount of wood produced during one growing season. ... They form the summerwood (latewood) which appears as a darker ring on the tree cross section.
I think that the Low-head hydropower involves small dams on minor rivers.
Low head hydropower plants are those that operate with a water level difference of 30 feet or less. The systems that generate electricity involve diverting water from a river that is delivered to a power house containing a turbine, generator or other equipment that convert mechanical energy to electrical energy.
Answer:
In the given case, the two scientists are working on a barley plant, independently determined a short plant mutation, and thus, created homozygous recessive lines of short plants. The measurements of the normal tall plants' height in comparison to the mutant short plants were performed carefully, which showed that the two mutant lines were having similar height.
In order to test whether these two mutant lines are carrying mutation of similar genes or of the distinct genes, complementation test is performed. In the test, it was found that the tall nature is dominant over the short. The complementation test takes place when the two strains of the organism exhibiting different homozygous recessive mutations generate the same phenotype, which is mutant and is also generating the wild type offspring when mated or crossed because of recessive mutation.
Complementation will take place only when there is a mutation in different genes. In the given case because of the wild type offspring, a complementation test will take place showing mutation of distinct genes. When the two strains are identical, there will be no generation of wild-type offspring because of which complementation test will not take place.
It sends an electrical impulse to make your heart beat. The job of a pacemaker is to artificially take over the role of your sinus node if it isn't working properly. Electrical impulses are sent by the pacemaker to stimulate your heart to contract and produce a heartbeat
<span>It is definitely logging</span>