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3 years ago

What does the circulatory system do?

Biology

1 answer:

Mnenie [13.5K]3 years ago

3 0

Answer:B

Explanation:

The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.

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Is a prokaryotic transcription terminating factor.

goblinko [34]

your answer is

A - Rho factor

3 0

3 years ago

What can some bacteria do that no other known organisms can do?

Levart [38]

Decomposition - bacteria helps to decompose dead organism , it's also used in food production

4 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

4 years ago

Which organelles contain enzymes that break down old cell parts?

Lena [83]

Explanation:

A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts.

6 0

2 years ago

What organelle do you think this represents?<br> What is the analogy?

chubhunter [2.5K]

I would say that this is the cell wall because it provides strength and protection for the cell. The armor for Nights is protection for the person inside of the armor. Hope this helps!

8 0

3 years ago