Why does Twain think "man occupies a far lower place than the rooster"? Which animal blushes due to shame?

An __is one of earth 's major. land ecosystems with it s own characteristics animaials animal ,plants,soil ,and climate

Mr. lockwood, your new tenant, sir. i do myself the honour of calling as soon as possible after my arrival, to express the hope that i have not inconvenienced you by my perseverance in soliciting the occupation of thrushcross grange: i heard yesterday you had had some thoughts - ' what does the term tenant mean in this passage? a) colleague b) friend c) neighbor d) renter

Idon't understand the question. can you translate and give me few examples?