DNA is considered the building blocks of life.
The correct answer is D. Pioneer species
Explanation:
In biology, the term "pioneer species" refer to the first species that colonize new environments or environments in which there is no biodiversity for example lands that have been affected by fire, lava, etc. These species are in most cases plants or small organism that are resistant and able to adapt to the harsh conditions of new land. Additionally, this concept differs from keystone and foundation species because these two concepts describe species that have an important role in the ecosystem rather than those that first live on new land. Therefore, the first species to live on new land are the pioneer species.
Answer:
Around only 2.5% of water on Earth is suitable for drinking but around 1% is easily accessible as most of it is frozen in ice caps and glaciers.
so approximately 67.5% of water on earth is non-fresh
Explanation:
Answer:
carbohydrates
Explanation:
Molecules made up of sugars. Cells use carbohydrates as a source of energy and for energy storage.
Answer:
The correct answer is E. Consensus sequences
Explanation:
A consensus sequence are considered in nucleic acid and protein which is recognized by specific protein like RNA polymerase. In nucleic acid, these sequences are short nucleotide stretch which are conserved across different organism and reflects most common bases at each position in a segment alignment.
Example of a consensus sequence is promoter sequence. In bacteria, the promoter region contains two regions of consensus sequence characterized by -10 and -35 sequence. RNA polymerase recognizes this consensus sequence and binds to the promoter region. Therefore the correct answer is E.
