Answer:
the factors that a cell considers when deciding whether or not to move forward through the cell cycle. These include both external cues (like molecular signals) and internal cues (like DNA damage).
Explanation:
Olá!!! Bom vamos lá!
O nucleotídeo é constituído de um açúcar,um grupo fosfato e uma base nitrogenada. Nesse caso estamos falando de subunidade então podemos dizer que estamos falando do RNA ou DNA, logo, teremos a desoxirribose como açúcar.
Depois teremos um grupo fosfato e assim as bases nitrogenadas ( Guanina, Timina/Uracila, Citosina, Adenina) Sendo que C combina com G e A combina com T/U , vamos usar a base T quando for DNA, e quando for RNA vamos usar U. Por isso a resposta correta é a letra B!
Espero ter ajudado em algo!
1. Calcium carbonate minerals are the building blocks for the skeletons and shells of mini marine organisms. It is important to ocean creatures because they make their shells out of this material. Examples of animal products that are primarily of calcium carbonate include seashells, egg shells, pearls, and notably coral
Answer:
1.Ions
2. Neurotransmitter
Explanation:
The neurons transmit the signals in the form of the electrical form and the chemical form.
The electrical signals are generated in the neurons as a result of the flow of ions or electrically charged species to maintain the equilibrium.
The signal from one neuron to another neuron takes place in the form of the chemical signal that is the chemical stored in the terminal of the axon called neurotransmitters.
Thus, ions and neurotransmitters are correct.
