Answer:
All viruses are obligate parasites; that is, they lack metabolic machinery of their own to generate energy or to synthesize proteins, so they depend on host cells to carry out these vital functions.
Answer: we classify organisms to group living beings who share the same characteristics or who have common attributes
Explanation: So, since the late '60s and based on the proposal of the researcher Robert Whittaker, most biologists group living beings into 5 large groups called Kingdoms, based mainly on three characteristics:
* type of cell,
* number of cells in each organism and
* the way of obtaining energy.
As a result, we could have 5 kingdoms; and these kingdoms are:
Monera, represented by the microorganisms of prokaryotic type known colloquially as "bacteria"
-Fungi, represented by mushrooms
-Plantae, the kingdom of the plants
-Animalia, the kingdom of the animals, and
-Protist, a very diverse group of organisms of eukaryotic type.
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I hope it is useful. regards. Maria
Answer:
D. Autotrophs
Explanation:
Because the sun's energy is used in plants (Autotrophs) for photosynthesis.
Answer:
DNA technology and gene cloning are essential to the pharmaceutical industry and medicine. DNA technology is being used to help diagnose genetic diseases, such as sickle-cell disease and Huntington's disease.
With the capabilities the Space Shuttle provides, scientist now have the means for deploying these observatories from the Shuttle's cargo bay directly into orbit. NASA's Hubble Space Telescope, the first of the great observatories, was deployed from the Space Shuttle Discovery into Earth orbit in April 1990.