DNA Replication How DNA Makes Copies of Itself. Before a cell divides, its DNA is replicated (duplicated.) Because the two strands of a DNA molecule have complementary base pairs, the nucleotide sequence of each strand automatically supplies the information needed to produce its partner
Answer:
The Milky Way is a spiral galaxy. - B)
<u>ANSWER:</u>
'Adaptations enhance survival' is true about all adaptions.
<u>EXPLANATION:</u>
- Adaptation is a mechanism in organisms that allows them to adjust with the changes in their current environment or to adapt to their new environment.
- Darwin explained this as a concept of a natural selection process where organisms are susceptible to the variations with the environmental changes.
- These variations which are associated with greater survival and reproductive success are retained in the progeny. This phenomenon is known as Darwinian fitness.
Eliminate B and D, not all single celled organism carry out through photosynthesis , they called singled celled organism and not work with other cell, it's either A and C, single celled organism is not a complex organism. so you can eliminate letter C.
so the best answer is A, although they have multiple organs system to maintain their internal stability.
Answer:
Similarities:
Both natural selection and evolution work on genetic traits in populations rather than individuals. Both natural selection and evolution are involved in generating changes over generations. Both natural selection and evolution result in either extensions or death.
Difference:
Evolution is a gradual change in the inherited traits of a population over many generations. Natural selection is a mechanism where the members of a population best suited to their environment have the best chance of surviving to pass on their genes
