The mass of an atom is contained primarily in its nucleus. The correct answer in regards to the given question is option "B". The nucleus is actually a dense compact region that is mostly made up of protons and neutrons and it takes the central position of an atom.
Ernest Rutherford discovered the nucleus of an atom in the
year 1911.The maximum weight of an atom is present in the nucleus and the
remaining small amount of weight is taken up by the electrons surrounding the
nucleus.
<span>How many different types of offspring (genotypes) are possible as a result of this cross, according to the punnett square? The correct answer is 3.
With three alleles we have a higher number of possible combinations in creating a genotype. Notes: As you can count, there are 6 different genotypes & 4 different phenotypes for blood type.</span>
Hey ur answer should be D
I hope this helps besides I waas really good at Biology
Similarities:
Both involve ion movement. Both use ion channels to move ions across the cell membrane, in or out of the cell.
Differences:
Passive Transport (or Diffusion) moves ions from high concentration to low, using no metabolic energy. Active Transport moves ions from low concentration to high, using metabolic energy in the form of ATP. Active Transport uses an ion pump (or Sodium/Potassium pump) to move 3 sodium ions out of the cell and 2 potassium ions in to the cell through the energy of 1 ATP molecule.
In active transport particles move against a concentration gradient and therefore require energy which must be supplied by the cell. Carrier proteins that are found in the cell membrane of cells use energy to transport molecules or ions across the membrane, against the concentration gradient.
Passive transport is a naturally-occurring phenomenon and does not require the cell to exert any of its energy to accomplish the movement. In passive transport, substances move from an area of higher concentration to an area of lower concentration.
Similarities: Mitosis and meiosis both involve cell replication. They both involve prophase, metaphase, anaphase, and telophase.
Differences: Meiosis creates gametes while mitosis creates somatic cells. Mitosis creates two daughter cells, while meiosis creates four sperm cells in men and one egg cell and three polar bodies in women. Mitosis involves one round of cell division, while meiosis involves two. Mitosis creates cells that have the same number of chromosomes as the original cell, while meiosis creates cells that have half the number of chromosomes as the original cell.
Hope that helped you.
P.S. There are more similarities and differences, challenge yourself and see if you can find them! Good luck.
