Answer:
sea otters are the keystone species.
Explanation:
Logic and Common Sense...
The answer is <span>A. A leather tannery. A tannery produces a sludge as a byproduct that is high in various toxic elements including chromium, a heavy metal that is highly toxic. Other pollutants produced include sodium, calcium, sulfur, magnesium, phosphate, copper, tin, lead, arsenic cadmium and zinc. Tannery effluent is an extremely toxic pollutant that could cause great harm if released into the environment, and for that reason, the tannery industry needs to be highly regulated and managed. </span>
I guess evergreen.......C
Answer:(A) Paleoanthropology
Explanation:
Anthropology is discipline which studies about human beings their evolutionary development, culture and societies.
Paleoanthropology is the branch of anthropology which studies the early development of the anatomically the modern humans. This is done through reconstruction of the kinship lines which can be achieved with biological evidences like skeletal remains, footprints, fragments of bones and cultural evidences like stone tools, and artifacts formed and developed by modern humans.
According to the given situation, the chimpanzees were seen to develop weapon against the small primates called as galagos. As chimpanzees were the ancestors of modern humans thus paleoanthropology, which is the primary type of biological anthropology can be used to address the research.
B. The PNS is the voluntary response to stimuli. You get to choose what you want to do with the stimuli
