The role of nitrogen- fixing bacteria in the nitrogen cycle.
Answer:
The key principles of Mendelian inheritance are summed up by Mendel's three laws: the Law of Independent Assortment, Law of Dominance, and Law of Segregation
Explanation:
__________
Ventilation maintains a steep concentration gradient, blood at the exchange surface usually has lower O2 and higher CO2 content than the air (of for fish, the water) at the exchange surface. This is what allows for diffusion of O2 into the blood and CO2 out of the blood. Multicellular organisms have a greater number of cells so will have a higher energy demand than single cellular organisms, this demand can only be met by allowing the cells to respire, a ventilation system brings oxygen molecules which are a raw product of respiration into the hemoglobin of the blood to be transported to tissues. As surface area : volume ratio is very low so if there was no ventilation system and the organism instead relied on exchange of materials through the exposed skin it would be very difficult to met the high energy demand as less O2 and CO2 would be able to be exchanged.
Answer:
Option A is the most appropriate answer.
Explanation:
The arrangement has plants being drenched in a water container to discharge Oxygen gas that is freed and gathered in a tube placed previously. The volume of gas gathered can be utilized to find out the rate of photosynthesis and whenever coupled by methods for pH observing gadget, an expansion in pH which shows soluble alkaline means that more oxygen yield. Along these lines, this method can be utilized to then again check CO2 levels. The gas syringe is utilized to permit the oxygen gas bubbles to be gathered at the known for evacuation and estimation purposes.
This photosynthometer is combined with a hydrogen carbonate indicator evaluating CO2 levels. At neutral levels in comparing with different cases, the shading is orange and there is a progressive change to yellow shading is CO2 focus is high. At low focus, the shading turns out to be a lot darker (purplish).
Thus, the correct answer is option A.
Answer:
There will be a larger sea urchin population and less kelp. Having less kelp will result in habitat loss for other organisms.
Explanation:
The sea otters preyed on the sea urchin, and the sea urchin preyed on the kelp. When the sea otter population whipped, there was no other organism to prey on the sea urchin. This leads to a larger population of sea urchins, and now since this happened, there will be less kelp because the population of sea urchins has increased, and that's what they feed on. With less kelp, there will not be a habitat for other organisms.
