Answer:
5. All magnesium atoms have the same number of neutrons
Explanation:
Magnesium (Mg) is a chemical element. Its atomic number (Z) is 12 (number of protons in the nucleus of the Mg atom).
The Magnesium has three stable isotopes: 24Mg, 25Mg and 26Mg. All these isoforms have 12 protons in their atoms (same atomic number), however they vary in the mass number of the atom (M).
The mass number of the atom (M) is equal to the sum of protons and neutrons in the nucleus.
Based on this information we can know how many neutrons each isotope has
24 Mg = 12 protones + 12 neutrons
25Mg = 12 protones + 13 neutrons
26Mg = 12 protones + 14 neutrons
In this way we conclude that <u>not all magnesium atoms have the same number of neutrons</u>
The answer to your question is the nucleolus. This is because the nucleolus acts like the brain of the cell. :)
The membrane is composed of phospholipid bilayer arranged back to back.
The plasma membrains selectively with cholesterol molecules and proteins
Answer:
interphase
Explanation:
The cell cycle is divided into two main phases: interphase and mitotic phase (mitosis or meiosis).
Interphase is phase characterized by the the cell growth and DNA copy (replication). During this phase, the cell prepares for division, (mitotic phase).
Interphase has three phases:
G1 or Gap 1 - the cell grows in size and duplicates organelles
S1-replication of DNA
G2 or Gap 2 phase- the cell adds volume to the cytoplasmand repicates more organelles.
Answer:
Those that are able to acquire their food and shelter needs in order to survive and reproduce.
Explanation:
