In the poem, the following figurative languages are used:
Blue as blood - simile
Protection like acid - simile
I wear him like a cloak - simile
The first one talks about the tattoo on the father's wrist. This idealizes that the tattoos are part of the father's body and distracting like a vein (veins appear bluish from the outside)
The second one is an abutment; protection is compared to acid, which is a substance that destroys, not protects. This implies that the efforts of the father in protecting the child feel like it is eating away (like acid).
The third one describes feelings of the speaker under the father's protection; The speaker sweats under the weight of being wrapped around instead of getting comfortable and relieved.
Hope this answer helps.
Mammals (Mammalia) are a class of vertebrate homeothermic amniotes (of "warm blood") that possess milk-producing mammary glands with which they feed the young. Most are viviparous (with the notable exception of the monotrematas: platypus and echidnas). A clear example of a mammal is man and his best friend, the dog.
This should not be included in the notes, because it is scientifically approved that mammals have the capacity to produce milk and give this food to their young, which is vital for humans or dogs as in the example
When Heathcliff's guardian, Mr. Earnshaw, dies, his son inherits the estate. When his happens, Heathcliff loses the favor he's had at the estate. He is no longer seen as an equal and instead he is treated as a lesser being because Hindey is enacting his jealousy from his childhood. Because of this, when Heathcliff takes over Wuthering Heights, he wishes to enact the same thing on Hareton. He wants him to feel the same pain that Heathcliff felt as a young man when Hindley treated him wrongly.