A compound microscope has an application in colleges and schools. It exhibits two lenses, the ocular lens, and the objective lens. The compound microscope generally possesses more than one magnification power, varying from 40 times up to 400 or even 1000 times the original size of the specimen.
It is also used to observe tissue samples, micro-organisms, blood, microscopic cells, and some of the bigger details inside the cells. A transmission electron microscope exhibits the similar basic guidelines as the light microscope, however, the microscope rather than using light, it utilizes electrons.
These microscopes utilize electrons as a source of light. Due to the formation of low wavelength, it is feasible to obtain a resolution better than with a light microscope.
Answer:
Molecular evidence.
Explanation:
Different species of bacteria may look similar structurally/morphologically and can only be told apart through molecular sequencing of biomolecules such as DNA or proteins. This genetic sequencing will compare the sequences of the two species and the differences can be perceived and biologists can tell how far apart the species are.
Answer:
Darwinism is a theory of biological evolution developed by the English naturalist Charles Darwin (1809–1882) and others, stating that all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce.
Explanation:
The correct option is this: TWO DRAGONFLY SPECIES REGULARLY MATE BUT THEIR GAMETES ARE INCOMPATIBLE.
In biology, there are different types of reproductive barriers, one of these is prezygotic barrier. A prezygotic barrier is a kind of mechanism that prevent reproduction from occurring by blocking fertilization. In this case, the concerned species will be mating together, but their gametes will not be compatible and thus, zygote will not be formed.
A postzygotic barrier on the other hand is said to occur when the reproduction process is blocked after the formation of zygote or after fertilization has taken place. A good example of this is an hybrid mule that is sterile and can not reproduce.
the correct answer would be they receive the same amount from the ocean as they release to the atmosphere
hoped this helped have a great day :)
