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yaroslaw [1]
3 years ago
5

Where is a proton located in the atom?

Biology
1 answer:
Marina CMI [18]3 years ago
4 0

a proton located in the atom is the nucleus

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The primary growth of a plant adds __________, and secondary growth adds __________. View Available Hint(s) The primary growth o
kari74 [83]

Answer:

1. Height

2. Girth

Explanation:

The woody plants grow in two manners: the primary growth and secondary growth.

The primary growth is considered the type of growth which increases the height of the plant which involves the apical meristem present at the tip of the shoot.

When the height increases up to its maximum length, then secondary growth begins which add tissues to the side that is it increases the girth by adding bark, secondary xylem and phloem.

Thus, Height and Girth is correct.

6 0
3 years ago
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What is the difference between a scientific theory and an opinion?
sweet-ann [11.9K]

Answer:

scientific theory means an idea or proposal of a concept where as an opinion is a thing where u chose something

Explanation:

hope it helped I mate

7 0
3 years ago
A pharmacist has two vitamin-supplement powders. The first powder is 10% vitamin B1 and 30% vitamin B2. The second is 15% vitami
Basile [38]

Answer:

560 mg of powder 1 and 160 mg of powder 2

Explanation:

Let "X" denotes weight of powder 1 added to the new mixture and  "Y" denotes weight of powder 2 added to the new mixture

Total weight of vitamin B1 in the mixture is equal to 80 mg

Total weight of vitamin B2 in the mixture is equal to 200 mg

Equation 1

0.1 X + 0.15 Y= 80

Equation 2

0.3 X + 0.2 Y= 200

Let us simplify the above two equations, we will get

10 X + 15 Y = 8000\\3X + 2Y = 2000

2 (10 X + 15 Y = 8000), 20X + 30 Y = 1600015(3X + 2Y = 2000), 45X +30Y = 30000\\25 X = 14000\\X = 560

Substituting value of X in equation 2 we get

0.3 * 560 + 0.2 Y = 200\\0.2 Y = 200 - 168\\Y = 160

7 0
3 years ago
When a child is born with down syndrome when did the mutation occur
bazaltina [42]

Answer:

Down syndrome occurs when the nondisjunction occurs with Chromosome 21. Meiosis is a special type of cell division used to produce our sperm and egg cells.

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3 years ago
"in humans, the ability to roll the tongue is a dominant trait; the inability to roll the tongue is a recessive trait."if two in
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There is a 0 percent chance 
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