Because the fatty acid chains are saturated and unsaturated hydrocarbons, it implies that the fatty acid chains of a phospholipid is not attracted to water hence why they are turned inwards towards each other and away from aqueous medium. This implies that the interior of the membrane is HYDROPHOBIC (water-fearing/water-repelling).
Answer:
(B) Energy transfer between trophic levels is almost always less than 20% efficient.
Explanation:
The ultimate source of energy on the Earth is the Sun. The energy coming from the Sun is captured by green plants by the photosynthesis. During photosynthesis sun energy is fixed into chemical energy (carbohydrate). So, in an ecosystem energy flow is unidirectional (from sun to the green plants). The fixed chemical energy from green plants is transferred to the herbivores then to carnivores through food. When one organism eats another organisms, only 10 % of the energy present in the organism is transferred as a food for the next organism and a large amount of energy is lost as heat into the environment. Thus, energy keeps on decreasing when stored energy moves from producers to top consumers. Thus, less than 20% energy transfer limits the trophic levels in most of the ecosystem.
C recession is one of the five causes of a business cycle.
Business cycles are measured by looking at the growth rate of the gross domestic product of a country. There are five causes of a business cycle:
1. Changes in interest rates2. Changes in house prices3. Changes in consumer and business confidence 4. The local or world economy moves into a recession5. The local or world economy moves out of a recession.
These causes can also be seen as unstable fluctuations rather than stable cycles.
hope I helped!!!
<span>Pneumocystic pneumonia. This is a fungal infection that is very common in people with HIV. Before medication was available, about 3/4 of people with HIV came down with this infection.</span>
Answer:
$220
Explanation:
For Mowing:
Revenue: $1,200
Additional cost: $(100)
Transportation cost : $(50)
Net Income : $1050
For Painting:
Revenue: $1,400
Additional cost: $(80)
Transportation cost : $(50)
Net Income : $1270
Incremental Net income = $1270 - $1050
= $220
