The type of microscope described above is the <span>phase contrast microscope. This microscope can produce high contrast images useful when observing transparent objects like living cells, microorganisms or tissue samples.
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Answer:
Zooplankton -tiny aquatic habitat organisms- gets their energy from phytoplankton consumption.
Explanation:
Zooplankton, or animal plankton, is characterized by being heterophosphoric organisms, obtaining its energy by consuming organic matter.
The main food source of zooplankton is phytoplankton, although they can also feed on organic waste, from the same zooplankton or even bacteria.
Zooplankton is composed of a very small fauna that includes single-cell organisms -such as protozoa and protists- fingerlings, larval forms of mollusks, crustaceans and aquatic arthropods.
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Answer: Mutation can affect an organism by resulting to a change in the number and structure of chromosomes (chromosomal mutation). A typical example of this type of mutation is Down's syndrome where the individual contains 47 instead of 46 chromosomes.
Mutation can also result to a change in the nucleotide sequence of the DNA molecule in a particular region of a chromosome(Gene mutation) an example of genetic mutation is sickle cell anemia
Explanation:
Answer:
pests can evolve defenses against pesticides over time
Explanation:
Pesticides are chemicals employed to kill pests generally. With continuous and indiscriminate use of pesticides, they become less effective because pests population often evolve a defense mechanism against them.
<em>With each usage, more and more pest population survive. Those that survive gradually multiply and pass the survival gene to their offspring eventually giving rise to a population that is genetically insusceptible to the effects of the pesticide. This is generally referred to as evolution by natural selection.</em>
Answer:
a. National park
Explanation:
Soil,water and air are the basic natural resources for aquatic and wildlife inhabitants and even vegetative populations.Soil and water conservation is very essential to life on earth for sustainable development.National parks are the best tool to protect wildlife and plants in that region.The soil and water conservation program is funded by the parks.Soil And water sales tax has been approved conservatory departments.
