Answer:
Beavers and their dams play an important role in nature. Because of the dramatic effects their dams have on surrounding ecosystems, these mammals are considered a keystone species. By constructing dams they create wetlands -- lush environments which attract fish, ducks, frogs and other creatures.
Explanation:
<u>Human activity</u>. The sixth mass extinction of of organisms caused by human actions potentially could go as far back as the late Pleistocene era (over 12,000 years ago.)
This best illustrates that the experience of pain is influenced by top-down processing.
Top-down processing is a level of a perceptual system which is based on how the brain utilizes information that has already been conveyed into the brain by one or more of the sensory systems (vision, touch, or hearing). Top-down processing begins with thoughts which move down to lower-level of the perceptual system such as the senses. With top-down processing, an individual’s experience of pain may be increased when he is aware that others are experiencing pain.
The correct answer is A. Pelvis
Explanation:
The ossa coxae, more commonly known as the hip or pelvic bone is one of the main bones in the pelvis which is joined to the sacrum and coccyx. Besides this, the ossa coxae connect the legs or posterior limbs to the spine and therefore it is an important bone for vertebrates placed at both sides of the pelvis. On the other hand, the sacrum is a triangular small bone that is placed int eh middle of the ossa coxae connectin the last vertebras. This along with the ossa coxae and coccyx form the pelvis (set of bones between the spine and limbs). Thus, according to this, the ossa coxae and the sacrum make up the pelvis.
Answer:
Chemical energy is energy stored in the bonds of chemical compounds, like atoms and molecules. This energy is released when a chemical reaction takes place. Usually, once chemical energy has been released from a substance, that substance is transformed into a completely new substance.
Explanation: