The answer is <span>A. presence of cell membranes.
A classification of living things can be based on many different characteristics but a presence of cell membranes is not one of them. <u>ALL living things have cell membranes.</u> So, <u>there could be no classification</u> of organisms with cell membranes and organisms without cell membranes.
On the other hands, based on mode of nutrition, organisms can be classified of autotrophs and heterotrophs. Based on presence of nucleus, organisms can be prokaryotes (without a nucleus) and eukaryotes (with the nucleus). Number of cells is base for classification of living things on unicellular and multicellular.</span>
A lichen is composed of two distinct organisms living together that behave like a single organism. true false
<span>True</span>
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
Answer: 2. The phenotype would be 100 percent pink.
3. All flowers would have Red and White phenotype. in other words, both colors would appear on the flower with little to no mixing of the colors.
Explanation: