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Serhud [2]
3 years ago
10

Why is calcium (Ca) in group 2, period 4 on the periodic table?

Biology
1 answer:
Brums [2.3K]3 years ago
5 0

Answer:

Calcium is a silvery-white, soft metal that tarnishes rapidly in air and reacts with water. Calcium metal is used as a reducing agent in preparing other metals such as thorium and uranium. It is also used as an alloying agent for aluminium, beryllium, copper, lead and magnesium alloys. Calcium is essential to all living things, particularly for the growth of healthy teeth and bones. Calcium phosphate is the main component of bone. The average human contains about 1 kilogram of calcium.

Explanation:

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The peripheral nervous system is involved in _____.
drek231 [11]

The peripheral nervous system is involved in both <u>voluntary and involuntary actions.</u>

Explanation:

The peripheral nervous system (PNS) is the neural system that resides outside the central nervous system (CNS). This contains nerves which in turn connect with the organs of the body like the sensory organs, glands, blood vessels, muscles etc with the central nervous system (CNS).

The PNS is divided into somatic and autonomic nervous systems.

The somatic nervous system contains sensory and motor nerve fibers which send sensory information and controls motor functions respectively. The voluntary movements of skin, skeletal muscles, bones, and joints are controlled by somatic PNS.

The autonomic nervous system composed of sympathetic, parasympathetic and enteric nervous systems controls the involuntary actions of smooth muscles of the internal visceral organs.  

8 0
3 years ago
At the beginning of cellular respiration, energy is stored in the bonds of blank molecules.
PtichkaEL [24]

<em>At the beginning of cellular respiration, energy is stored in the bonds of</em> glucose <em>molecules. </em>

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3 0
3 years ago
What is it about the life-cycle that makes cane toad populations successful?
Svetllana [295]

Cane Toads are very strong and adaptable, they are also poisonous throughout its life cycle, which is why they only have a few predators and have a life span of 10-15 years. Cane toads have poison glands, and the tadpoles are extremely toxic to most animals if consumed. They are productive breeders, they only need a small pool of water of almost any nature. The female cane toads can lay 8,000 to 35,000 eggs at a time and may produce two clutches in one year. The eggs will hatch within 24-72 hours and the tadpole stage may last from three to twenty weeks. Cane toads in the tropics grow really quick and may be sexually mature only within one year. Cane toads have been introduced to many regions of the Pacific and the Caribbean islands as a method of agricultural pest control because of their ravenous appetite, however, they are now considered pests and are dangerous to humans and animals, both wild and domesticated especially to dogs.

7 0
3 years ago
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Which of the following statements is most clearly inductively derived? (eText Concept 1.3)
Svetlanka [38]

Answer:

The correct answer is option - A.

Explanation:

The inductive reasoning is an approach or method that is based on the supplying evidence for proving the conclusion as true. Or in their words, inductive reasoning is an approach in which specific statements to a generalized conclusion.

The statement of option "a" provides a piece of evidence and on the base of evidence derived a conclusion.

Thus, the correct answer is option - A.

5 0
3 years ago
***
statuscvo [17]

Biological procession ?

6 0
2 years ago
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