30-50%
30% in the winter
50% in the summer
Answer Options:
a. Cells are the basic units of structure and function in living things.
b. New cells are produced from existing cells.
c. All cells enclose their DNA within a nucleus.
d. All living things are made up of cells.
Answer:
a. Cells are the basic units of structure and function in living things.
b. New cells are produced from existing cells.
d. All living things are made up of cells.
Explanation:
Cell theory states that cell living organisms are composed of at least one cell, which are the basic unit of life.
Cells are always produced from other living cells, and cannot spontaneously generate.
However, not all cells enclose their DNA within a nucleus, prokaryotic organisms (bacteria) do not possess a nucleus but still have DNA
A. The city receives direct sunlight all over the year since it is in tropical zone (less than 30 degrees in latitude). The solar intensity will not cause a significant difference in temperature since the solar intensity itself does not vary significantly.
<span>d. The decrease in ozone will increase solar intensity and the amount of ultra-violet rays. It may lead to a higher chance of sunburn. People may also have skin cancer because of ultra-violet.
I dont really know b and c neither.</span>
Answer:
77.5 years
Explanation:
Preliminary data indicates that life expectancy at birth in the United States had reached a record high in 2003.
