Stomata open in the daytime, when there is an abundance of heat energy from the sun that causes evaporation of water, causing the guard cells to become flaccid, allowing the stomata to open.
B.All cells that currently exist have originated from pre-existing cells.
C.Cells are the most basic structural and functional unit of life.
D.All cells possess DNA enclosed within a nucleus.
Answer:
C
Explanation:
The three main parts of a nucleotide are a phosphate group, a five-carbon sugar (deoxyribose in DNA or ribose in RNA), and a nitrogenous base.
Phosphate Group: This is one of the essential parts of a nucleotide. The phosphate group consists of a phosphorus atom bonded to four oxygen atoms.
It provides a negatively charged backbone in the DNA or RNA molecule, contributing to its overall structure and stability.
Five-Carbon Sugar: The second vital component is a five-carbon sugar molecule. In DNA, this sugar is deoxyribose, while in RNA, it is ribose. The sugar forms the central part of the nucleotide structure and serves as a link between the phosphate group and the nitrogenous base.
Nitrogenous Base: The third crucial part is the nitrogenous base. There are four nitrogenous bases in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G). In RNA, uracil (U) replaces thymine.
The nitrogenous base is responsible for the genetic code and base pairing in DNA (A pairs with T, and C pairs with G).
Therefore, all three components—phosphate group, five-carbon sugar, and nitrogenous base—are integral to the structure and function of nucleotides. None of them can be considered "not one of the main three parts" of a nucleotide.
For such a more question on nucleotide
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B. All the cells of the body have the same DNA, but use different parts of it.
C. All the cells of the body are exactly the same as the original zygote cell.
D. All the cells of the body have pieces of the original cell’s organelles
Answer:
B
Explanation:
Different cells use different parts of the DNA strand to perform their functions
Answer: B
Explanation: How does a complex organism such as a human develop from a single cell—a fertilized egg—into the vast array of cell types such as nerve cells, muscle cells, and epithelial cells that characterize the adult? Throughout development and adulthood, the process of cellular differentiation leads cells to assume their final morphology and physiology. Differentiation is the process by which unspecialized cells become specialized to carry out distinct functions. All the cells of the body have the same DNA, but use different parts of it.
Explanation:
It is either a cell or an atom but I am not sure, sorry
Answer:
A cell is the smallest unit of a living function.
Explanation:
Whether the living thing is made up of one cell or many it is called an organism. Cells are like the building blocks of an organism.
B) asexual reproduction
C) budding
D) identical alleles within genes
A different combination of allele within their genes.
the correct answer is a