The correct answer is chloroplast. If an organism has chloroplasts then it will be an autotroph because it will be able to make its own food by the means of photosynthesis. This is common for plants but there are some bacteria that can photosynthesize as well. If you don't have them you have to feed on other organisms that have energy for you.
What Will Clean a Penny Faster, Water or Vinegar
The answer is an envelope.
A virus is an infectious agent that can replicate only inside a host cell. When it is outside the cell, it consists of genetic material coated with protein capsid. Some viruses also have an envelope which covers capsid. The function of the envelope is to identify and bind some receptor sites on the host membranes. After fusing with the cell membrane, it allows to capsid and genetic material to enter the cell and infect it.
Answer:
Sickle Cell Anaemia can be considered a form of discontinuous variation because the variation falls within definite groups. You either have sickle cell malaria (HsHs) or you do not (HaHa). There is nothing in between and so one cannot draw a continuum (continuous scale) for Sickle cell Anaemia.
Explanation:
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