Answer:
the primary function of the plasma membrane is to protect the cell form its surroundings. composed of a phospholipid bilayer with embeded with proteins the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
Explanation:
Explanation:
One person that worked with Darwin was Alfred Wallace. Darwin believed that species were able to change over time, and that they shared the same genetics due to their common ancestors. Alfred believed the theory of the of natural selection, and that when a humans die their spirit is gone after death. Things that relate to Darwin's theory is, Limeleus, it's a classification system from kingdom to species. There's also three theories of geological changes which were catastrophism (natural disaster) idea that catastrphism happen in the past and will continue. Gradualism ( everything must change), and last is Uniformitariansm ( idea that what happened in the past, will happen again in the future). It's prevailing theory of geological change.
Answer: FEVER, PALLOR, DYSPNEA AND PETECHIAE
Explanation: Anaemia is the decrease in the quantity and quality of blood cells in circulation in the body.
There are different types of anaemia,one of them being aplastic anaemia.
Aplastic anaemia is a type of anaemia characterised by reduction in the production of enough new blood cells by the body (bone marrow).
When this occurs,the individual becomes easily tired and prone to infection as a result of weakened immune system.
Aplastic Anaemia can be caused by radiation or chemotherapy,it can also be caused by autoimmune reaction when your body starts attacking it's stem cells in the bone marrow.
"Net force" simply means the sum of all forces. The "unless acted upon by a net force" version is more correct. For example, as you stand or sit still, the earth pushes you up with a force equal and opposite to the force with which gravity pulls you down. The net force, or total force, is zero, so you do not move.