Answer:
When the battery is used to start the car, The energy is converted from electrical to mechanical energy to move the car, The chemical energy in the form of gasoline converts to the mechanical energy, and each transformation leads to the production of the heat.
Answer:
B. They sweat or pant to lose heat by water evaporation.
Explanation:
The answer is Parathyroid Hormone (PTH). Steroids reduce calcium
levels in the blood. This results in activation of the parathyroid hormone that
is essential in the metabolism of calcium
in the blood. PTH induces reabsorption of
calcium from bones to restore homeostasis
Ca2+ levels in the blood hence causing
osteoporosis. Osteoporosis causes an increased risk of bone fractures.
Answer:
Explanation:
Organisms have different forms of circulatory systems. Humans have a closed circulatory system, while many mollusks and other invertebrates have an open system. In a closed circulatory system, blood is enclosed within blood vessels.
Answer:
A. Early signs of life on earth
Explanation:
The Hadean, before the Archean, is the first geologic eon of Earth. It began with the formation of the Earth about 4600 million years ago and ended 4,000 million years ago. The planet had just formed and was still very hot due to high volcanism, a partially molten surface. Some geologists labels the period before the earliest-known rocks on Earth. At the end of it much cooler surface temperature and the formation of solid rock enabled to flaurish the life.
