18
Explanation:
The family number 18 consists of a pool of elements that are less likely to enter into chemical reactions. They are called noble gases or inert gases.
They do not react with other elements.
These elements are:
Helium
Neon
Argon
Krypton
Xenon
Radon
- inert gases do not react because their outermost shell is completely filled.
- most elements combines in order to fill their outermost shell completely
- for noble gases, this is completely done already
- all atoms on the periodic table tends to mimic them when they go into chemical reactions.
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Noble gas brainly.com/question/1781595
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Answer:
The Importance of Folic Acid for Women – Before and During Pregnancy. Folic Acid, known as vitamin B9, is a dietary supplement directly linked to important functions of the body, including the formation of red blood cells, the synthesis and repair of RNA and DNA, and particularly important phases of fetal development.
Explanation:
1. <span> A. The algae directly feeds the large-mouth bass and wood duck. Consumers are the same thing as heterotrophs.
2. </span><span>The blue arrow points to an animal which gets all its energy from (i.e., eats) only other animals
3. </span><span>Primary consumers are the organisms which eat producers. So without the primary consumers eating the producers, the number of producers will probably increase.</span>
Answer:
A karyotype is an individual's collection of chromosomes.
Explanation:
Tadpoles have gills allowing them to breathe underwater while frogs have lungs. Tadpoles have tails and fins to help them swim while frogs have arms and legs.
