Answer:
ANS - Autonomic Nervous system.
Explanation:
Autonomic nervous system (ANS) is responsible for regulating the involuntary control of smooth, heart muscles and some glands and organs.
Whereas the somatic nervous system (SNS) regulates the voluntary contraction of the skeletal muscles.
Answer: Armored fish
Explanation:
The earliest known fossil vertebrates were heavily armored fish discovered fish in rocks from the Ordovician period.
The fossils shows the path from the early aquatic life to the vertebrates, vertebrates to mammals.
The fossils shows that it is vertebrate and are the oldest known fossil ever known. The fossils of the animals and plants helps to known the behavior of the past time and based on that research and study is done.
The cooling of earth’s surface and the heating of earths core
Answer:
2, that’s what the 2 means.
Explanation:
Answer:
Nitrate
Nitrate is the form of nitrogen most used by plants for growth and development. Nitrate is the form that can most easily be lost to groundwater. Ammonium taken in by plants is used directly in proteins. This form is not lost as easily from the soil.
Explanation:
