Select the correct statement(s) about the transfer of food energy up the trophic levels from its source in autotrophs.
select all that apply.
an organism feeds at only one trophic level.
the length of a food chain is limited by the inefficiency of energy transfer along the chain.
few plants have adaptations to reduce feeding by herbivores.

1 - False

2 - True

3 - True

Explanation:

All plants, for example, occupy the same trophic level (producers) as all herbivorous animals (primary consumers). However, not all animals always occupy the same trophic level. This is the case of carnivores or omnivores, for example, who may be consumers of different orders. So the first statement is false.

The flow of energy in an ecosystem's food chain is always unidirectional, and at each trophic level, the less energy available to the next level. This explains the fact that chains tend not to be very large, usually with five or fewer links. Given this, the second statement is true.

Some plants have a variety of mechanisms that protect them from being eaten by herbivores, such as high levels of leaf or stem toxicity, as well as the presence of thorns. This concludes that the third statement is true.

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.

for 8 am not sure maybe yes?

for 9 if it is asking if the male is more or less it would be less

hope i even just a little : )