The brain loses 5-10 percent of its weight between the ages 20 & 90.
Answer:
1) Both are surrounded by a cell membrane.
2) Both contain cytoplasm.
3) Only eukaryotic cells have a nucleus.
4) Only eukaryotic cells have membrane-bound organelles.
5) Both tend to be microscopic in size.
6) Only eukaryotes are either multicellular or unicellular.
7) Only prokaryotes are only single-celled.
Answer:
a trait that gives an organism a reproductive advantage in the current environment
Explanation:
An adaptation is a trait that provides an advantage to the individual in which it is present by making the individual more adaptable to its environment and as the result, the individual survive to reproductive age and able to produce more offspring than less adapted individual of its population.
So the trait gives an individual or organism a reproductive advantage in the current environmental situation. The trait or allele that helps in adaptation comes due to mutation or variation from meiosis or gamete fusion.
Proteins, Ribonucleic acid is another kind of organic molecule that also acts as a catalyst for chemical reactions. Asides acting a catalyst for chemical reactions, proteins have a wide variety of functions that they perform in in living cells.
