Using the information from picture 1, if otters were placed into an energy pyramid, which of the following statements best describes how the otter would be positioned on an energy pyramid?
a. Otters would be towards the top of an energy pyramid at the higher trophic levels where
the most amount of available energy is found.
b. Otters would be towards the top of an energy
Picture 1
pyramid at the higher trophic levels where
the least amount of available energy is found
Otters would be towards the bottom starting
point of an energy pyramid where the higher
trophic levels would be and the most amount
of available energy is found.
d. Otters would be at the bottom of an energy
pyramid at the lower trophic levels, as a
producer, where the most amount of
available energy is found.
C с
Phytoplankton
Kelp

americans began to notice growing differences between the northern and southern sections of the country. there were more people living in cities in the north, which made it more urban. more people lived on farms in the south, which made it more rural. while many people were farmers in the northern states, there were now other ways to make a living, such as working in mechanical cotton gins factories manufacturing cloth, tools and other goods. people in the north supported high tariffs on goods imported from europe because the extra cost encouraged people to “buy american” instead. in the southern states, planters did not like tariffs because they sold most of their production to europe and bought their tools from there as well. southerners believed the protective tariff was something that only northern factory owners keep their profits high. so the southern politicians came up with an idea. they would opt out. they would simply ignore the protective tariff. it was ‘null and void’ in south carolina. the state would not collect the taxes on goods imported into south carolina, no matter what the president said they had to do. this decision led to the nullification crisis.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.