The correct answer is: B) As land plants became more complex, animal life did as well.
This is because land could not be colonized by other organisms such as animals until land plants became established-there was nothing for animals to feed on.
So, plants were one of the earliest organisms to leave the water and colonize land.
The structure of plasma membrane makes it selectively permeable allowing it to regulate the passage of substances into and out of the cell. Small nonpolar molecules can easily across the phospholipid bilayer of plasma membrane because it is hydrophobic. Polar molecules and ion cannot easily across the hydrophobic portion of plasma membrane because it is hydrophilic. Polar molecules and ions usually across the plasma membrane with the help of transport proteins.
<u>Answer</u>:
The food containing 200 calorie have less potential energy than the food containing 300 calorie
<u>Explanation</u>:
The potential energy content of a food material is its stored energy content which is in the form of chemical bonds. This energy can be measured through the combustion of food material inside a calorimeter. A calorimeter is an instrument which is used to measure the total calorie content of the food or other biological samples by measuring its heat content. A Calorie is unit of energy which is in form of heat.
The food material containing carbohydrates proteins and fats have energy in form of chemical bonds. On the breaking of bond inside the body, energy is released as in the case of glucose breakdown also known as glycolysis.
The energy released from glycolysis is used to synthesize high energy containing phosphoanhydride bonds. These ATP molecules are a further breakdown in the system to provide energy to the cell to perform various activities.
Similar in exponential decay 10 grams of a radioactive materials are present after a certain time period it will decayed to 5 grams now from this point the further decaying process will depend upon these 5 grams present currently
examples of natural processes showing exponential growth or decay are<span>·<span> </span></span>Population growth<span>·<span> </span></span>Bacterial growth rate<span>·<span> </span></span>Viruses growth rate<span>·<span> </span></span>Radioactive decay<span>·<span> </span></span><span>Temperature decrease</span>
<span>1. Two-year old Zack has an inherited disorder in which his body cannot break down fat. He will probably die by the time he is four. Zack is most likely suffering from:
a. phenylketonuria.
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2.
The first two weeks of a pregnancy, from conception to implantation, are known as the _____ period.
Select one:
b. germinal
3. Which of the following is TRUE of transcranial magnetic stimulation (TMS)?
a. It uses an electrical current.
4. Drive-reduction approaches to motivation are:
Select one:
c. theories suggesting that motivation stems from the desire to obtain valued external goals.
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