Homeostasis is the body's ability to maintain constant conditions when conditions change. a. external; internal b. oxygen; temperature c. temperature; ph d. internal; external

D. internal; external

Explanation:

The word homeostasis is the condition of the body where the temperature remains constant and stable and does not change when the outside and the inside temperatures change. And can be observed such as in birds as they have features that provide insulating conditions so that the external environmental conditions don't affect the internal conditions. And is maintained by the living organism

Humans have survived and thrived in mexico city by using technology to create greater access to land. when the spanish conquered the aztec capital, tenochtitlan, in the 16th century, they built mexico city by draining the lakes and filling in the lake water to create more arable land for agriculture. this technique of land reclamation has continued to be fundamental to human civilization in mexico city. 

Answertocharian and anatolian are considered extinct