Answer:
Explanation:
biology of your talking about life evolution but all if your talking about mankind evolution and technology
Answer:
b. a semi-permeable double layer of phospholipids that have hydrophilic heads and hydrophobic tails
Explanation:
B is correct as the cell membrane is selectively semi-permeable. It is selectively semi-permeable because this quality allows it to control what can and can't enter the cell, and how it does so.
The cell membrane also has a phospholipid bi-layer comprised of a double layer of phospholipids which have hydrophilic head and hydrophobic tails. This is because the heads are made of phosphate and are polar and are therefore attracted to water (hydrophilic), while the tails are made of lipids (i.e. fats, oils) which do not mix with water and are therefore hydrophobic.
The properties of each phospholipid is also why they form the double layer structure, the hydrophilic heads naturally face outwards into the water and protect the hydrophobic tails on the inside.
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I believe the answer to this question is cellular respiration
Limited installation sites best describes a drawback in the scientists' plan because tidal energy is not present everywhere.
<h3>
Describes a drawback in the scientists' plan?</h3>
The big disadvantage of tidal power is that there are limited installation sites for it. It is expensive as well as the turbines can adversely impact the surrounding ecosystem.
So we can conclude that limited installation sites best describes a drawback in the scientists' plan because tidal energy is not present everywhere.
Learn more about energy here: brainly.com/question/13881533
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The urinary system is the main excretory system of the body after the gastrointestinal tract (large intestine) and lungs, In these questions it is necessary to prioritize the urinary tract.
The right answer is D. Bladder
The bladder belongs to the urinary excretory system.
The bladder receives the urine produced by the kidneys via the ureter and has the function of storing it before its elimination during urination through the urethra. The muscles surrounding the bladder help to prevent urine reflux to the ureter.
The right answer is C. Kidneys
The main purpose of the renal excretory system is to eliminate nitrogenous wastes while maintaining homeostasis, all through the formation of urine.
The kidney has a secretory function (filtration of blood in the glomeruli) and excretory from the pyelon (triangle based on the renal hilum) origin of the ureter. We speak of pyelo-ureteral junction. Each kidney contains about 1 million nephron.
