The presence of a membrane bound nucleus describes the evolution of eukaryotes from prokaryotic organisms. The endosymbiotic theory describes the same, the large cells engulfed the smaller ones, and the engulfed cells were not digested but started living in mutual cooperation with the engulfing cell. Mitochondria and chloroplast are thought to be the engulfed cell
Yes, those that use external fertilization are more likely to produce large numbers of sperm and eggs.
Answer:
a. The letters Na with one dot
Explanation:
An atom can be defined as the smallest unit comprising of matter that forms all chemical elements. Thus, atoms are basically the building blocks of matters and as such determines or defines the structure of a chemical element.
Generally, atoms are typically made up of three distinct particles and these are protons, neutrons and electrons.
In Chemistry, electrons can be defined as subatomic particles that are negatively charged and as such has a magnitude of -1.
Valency can be defined as a measure of the combining power of a chemical element with other atoms to form a molecule or chemical compound.
Valence electrons can be defined as the number of electrons present in the outermost shell of an atom. Thus, valence electrons are used to determine whether an atom or group of elements found in a periodic table can bond with others.
Sodium is a chemical element that is found in group (1) of the periodic table and as such it has 1 electrons in its outermost shell. Also, the chemical symbol for Sodium is Na and it has one (1) valence electron.
A Lewis structure can be defined as a structural representation of an atom or molecule by using a dot to show the position and distribution of electron(s) around the atom or molecule.
Hence, the letters Na with one (1) dot is a correct Lewis structure diagram for Sodium (Na) because it has just one (1) valence electron in outermost shell.
For example, the Lewis structure diagram for Sodium (Na) is •Na.
Answer:
It represents religious beliefs on the nature of life. Whereas he saw religion as a tribal strategy of survival, Darwin always believed that he was God's ultimate legislator, and he then remembered that he was convinced that God was a first cause and that he was called a theist at that time.
Explanation:
It represents religious beliefs on the nature of life. Whereas he saw religion as a tribal strategy of survival, Darwin always believed that he was God's ultimate legislator, and he then remembered that he was convinced that God was a first cause and that he was called a theist at that time.
Hope this helps.
Answer:
It is the act of measuring internal resistance.
Explanation:
It should be understood that when that action is exhibited, it is towards of measuring the internal resistance.
And it should be noted that, no matter how much or little load we attach to the battery, the voltage at the source's terminals will always stay the same.
