The correct answer is B) decreases; more difficult.
Unicellular organisms such as <em>Amoeba</em>, <em>Paramecium</em> depend on diffusion to move substances into and out of the cell. The surface area of unicellular organisms is large compared to its volume. Therefore, nutrients and other substances can easily cross the membrane and around their body.
As a cell's volume grows, its surface area/volume ratio <u>decreases</u>, making it <u>more difficult</u><u> </u>to acquire enough nutrients via diffusion.
<h2>Answer:</h2>
When Gregor Mendel crossed purple flowered pee with a white flower pea plant and all the F1 offsprings were purple due to a reason that;
- The purple color of flowers is dominant over the white color of flowers.
- The purple flower plant of the pea in the cross was also the homozygous dominant that is why all the offsprings were purple.
The answer is; B
The carbon cycle exists in the atmosphere mainly as carbon dioxide. The levels of carbon dioxide change can change dramatically over years. The movement in and out of carbon in the atmosphere is fast and influences by factors such as combustion and photosynthesis. The former increases carbon in the atmosphere whole the latter decreases it.
Answer:At medium temperatures, between 50 and 68 degrees Fahrenheit, or 10 and 20 degrees Celsius, the photosynthetic enzymes work at their optimum levels, so photosynthesis rates gauge high. Depending on the particular plant in question, set the greenhouse thermostat to a temperature within this range for best results.
Explanation: