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Kitty [74]
3 years ago
10

The most common of the psychoactive substances, used by 90% of americans, is __________.

Biology
1 answer:
Masteriza [31]3 years ago
5 0

The answer is caffeine. Caffeine is used as a stimulant to maintain alertness and reduce drowsiness. Caffeine is used to improve performance and most take it to allow them to continue working when they naturally feel tired or to stimulate the brain in the morning.  It is consumed in beverages such as tea, coffee, and soft drinks.






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Vegetarian is the best choice

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Incomplete Dominance and Codominance You are studying leaf development in a member of the mustard family. You identify several m
Mariana [72]
<h2>Incomplete dominance & Co dominance</h2>

Explanation:

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  • forked-the mutant allele is predominant to its relating wild-type allele.
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  • Mendel's outcomes were earth shattering halfway in light of the fact that they repudiated the (at that point well known) thought that guardians' attributes were for all time mixed in their posterity. At times,  the phenotype of a heterozygous living being can really be a mix between the phenotypes of its homozygous guardians.  
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4 0
3 years ago
Which model would you use to examine the relationship between nitrogen concentration and plant growth
uranmaximum [27]
Intermediate disturbance
4 0
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The
I am Lyosha [343]

Answer:

valence electrons an element has in its outer shell, the easier it is to complete.

The most electron shells an element has, the easier it is to fill its outermost shell.

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Non metals atoms bond to other elements by sharing or completing the valance electrons in other element. This is easily made when the other element lacks a small number of electrons, for example with Hydrogen it has 1 valance electron because of that it is easier to bond with other elements.

5 0
3 years ago
Which option correctly identifies the number of chromosomes in the cells at each point?
kodGreya [7K]
Option (A) identifies them correctly.


During Meosis 2 daughter cells are formed from a single cell and the chromosomes are equally divided in both the cells.

So, Cell P had 60 chromosome, after miosis 2 daughter cells of each having 30 chromosomes formed, and again after Miosis of from each of those 2 those daughter cells, 2 more daughter cells are formed with equal naumber of chtomosome which equals 15.
6 0
3 years ago
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