Selectively permeable (or semi permeable) means where for example a membrane can choose what material can pass through while others cannot. They control the in and out of materials.
This is because the membrane has tiny spaces, where only smaller molecules can pass through, other larger ones cannot.
<h2><u>Answer:</u></h2>
Genetic designing gives crops that are more affordable to develop. One of the most serious issues that the world may look soon is a sustenance supply lack because of the expanding exponential development of the populace.
Genetic designing gives crops that are progressively generous, bigger and more affordable to develop that might be the response to mounting future issues. The capacity to control plants in the lab makes modifying their development design an a lot quicker change than numerous long periods of characteristic choice in the homestead and field.
the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.
Many bacteria help us: living in our gut digesting and helping absorption of our food, fixing nitrogen and decomposing organic materials in soil. Similarly, not all viruses are bad—we now know there are also beneficial viruses present in our gut, skin and blood that can kill undesirable bacteria and more dangerous viruses.
C. The nucleus does not exit within a prokaryotic cell
Answer: A diet rich in calcium and vitamin D supplements.
Some examples off calcium rich foods include Cheese; Yogurt; Sardines and Canned Salmon; Beans and Lentils; Almonds; Whey Protein; Some Leafy Green.
