Answer:
D) infectious proteins with no associated nucleic acid.
Explanation:
Alexander Fleming discovered the penicillin in 1928. He noticed that some bacteria he had left in a petri dish had been killed by naturally occurring penicillium mould.The penicillin began the era of antibiotics, has been recognized as one of the greatest advances in therapeutic medicine. The research required to determine if the penicillium extract was safe and killed bacteria was done at Oxford University.P<span>rogram of animal experiments and clinical trials was carried.</span>
Answer:
Most crabs usually stroll on the beach by walking sideways. But crabs can also walk forward, backward and diagonally. Because crabs have stiff, jointed legs, they move faster and easier walking sideways. ... A crab walking sideways pulls itself along with one set of legs and pushes with the other.
The answer to this question is Vitreous Body. The Vitreous
Body is a jelly form substance that fills the space on the eyeball of humans.
The vitreous body also helps transmit light in the retina and this also
functions to help maintain the shape of the eyeballs and make it stay in place.
Answer:
Chinese they have got high birthrate than death rate
