Answer:
A generation is "all the people who are born and lived at about one time collectively" and is also defined as "the average period in which children are born and grow up, becoming adults and start having children of their own" "currently approximately thirty years"
Answer:
Long life span
Explanation:
A model organism is a non human specie that is used for study in order to understand a particular biological phenomena.
One of the qualities of a model organism is that; It should have a short life span this will make it more amenable to experimental manipulation due to short generational time. Therefor Long life span will not be a desirable characteristic.
Other desirable characteristic includes ease of growth and production of many offsprings.
Also common genetic mechanism with other organisms, they should share some degree relatedness.
Virus Structure
Viruses are very small. They are usually 17 to 400 nanometres in diameter. This is about 1000 times smaller than the diameter of a human hair. They are even 100 times smaller than most bacteria
17) Virus are . 100. times smaller than bacteria.
Active transport methods:
- symport - across one protein, two molecules are transported in the same time and direction
- antiport - across one protein, two molecules are transported in opposite directions, which one enters into protein and one leaves it.
I hope I helped :D
