Answer: The main function of mitochondria is to produce energy for the cell. Cells use a special molecule for energy called ATP.
Explanation: The most prominent roles of mitochondria are to produce the energy currency of the cell, ATP (i.e., phosphorylation of ADP), through respiration, and to regulate cellular metabolism. The central set of reactions involved in ATP production are collectively known as the citric acid cycle, or the Krebs cycle.
The correct answer is: B) species selection.
Species selection is defined as an evolutionary process in which selection acts on an entire species population (not individuals). It can occur as a consequence of the geographical range of a population, which affects the whole population.
3 is your answer. When developing an embryo, fertilization of gamete cells is stage that it goes through .
D.three tissue layers I think
Answer:
microorganism/ biological cell
Explanation:
Bacteria are a type of biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats.