Why does everyone want people to write a whole paper for them? This is for help, not cheats.
Answer:
False. HIV is called a retrovirus because it works in a back-to-front way. Unlike other viruses, retroviruses store their genetic information using RNA instead of DNA, meaning they need to 'make' DNA when they enter a human cell in order to make new copies of themselves.
Explanation:
Answer:
c and d.
Explanation:
a. the total amount of matter and energy increased.
b. the total amount of matter and energy remained the same.
c. matter and energy were lost each time they changed forms.
d. matter and energy were lost each time they changed locations,
As organisms feed within an ecosystem, energy flows from one trophic level to the other while matter is converted from one form to another.
However, less and less energy becomes available to support life as energy moves through the ecosystem from producers to consumers as a result of energy loss to the ecosystem. In addition, matters are also lost during conversion from one form to another.
Hence, matter and energy are lost each time they changed forms and locations.
Option c and d are correct.
Answer: The answer is A
During mitosis (nuclear division), the chromosomes condense, the nuclear envelope of most cells breaks down, the cytoskeleton reorganizes to form the mitotic spindle, and the chromosomes move to opposite poles. Chromosome segregation is then usually followed by cell division (cytokinesis).
