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2 years ago

Which of the following is NOT an example of a physical change?

Biology

1 answer:

Natasha2012 [34]2 years ago

6 0

Answer:

Solution : Combustion of Liquefied Petroleum Gas (LPG) is a chemical change. Because it is an irreversible reaction and new products, carbon dioxide and water vapour are formed and lot of heat is also produced during the reaction.

You might be interested in

Expand the squared binomial. (x – 3)^2

stellarik [79]

(x-3)² = (x-3)(x-3)
= x² - 3x - 3x + 9
= x² - 6x + 9

4 0

3 years ago

Signs and symptoms that a woman should report immediately to her health care p rovider include:________.

solong [7]

The question is incorrect.

the correct question is Signs and symptoms that a prenant woman should report immediately to her health care provider include:________.

a. vaginal bleeding

b. rupture of membranes

c. heartburn with severe headache

d. decreased libido

e. urinary frequency

Answer:

a. vaginal bleeding

b. rupture of membranes

c. heartburn with severe headache

Explanation:

A pregnant woman should report immediately about vaginal bleeding

, rupture of membranes

, and heartburn with severe headache to her health care provider.

A) Vaginal bleeding: vaginal bleeding is uterine bleeding, which is common in the earlier stage of pregnancy but if it is continous it can be symptoms of miscarriage, so one should immediately contact her healthcare provider.

B) Rupture of membranes: If any pregnant women experience rupture of membrane, it causes steady leakage of fluid from the vagina. If the rupture is preature it can cause some complications in the baby such as premature birth, infection, and cord compression.

C) Heartburn with severe headache: if a woman experiences heartburn with severe headache during pregnancy, she should immediately contact her healthcare provider as it can be symptoms of preeclampsia (condition develops during the second half of pregnancy).

Hence, the correct options are a) vaginal bleeding

, b) rupture of membranes

, and c) heartburn with severe headache

6 0

3 years ago

What was most likely not present in the creating of amino acids

Bumek [7]

Hydrogen
I hope this helps you!

4 0

3 years ago

How are the graphs of a body chemical controlled by negative feedback and a chemical controlled by positive feedback similar

andriy [413]

There is a proper mechanism of controlling the levels of various kinds of hormones and chemicals in our body called as positive feedback and negative feedback.

In a very simple language you can understand it as whenever there is a release of a particular hormone or chemical inside the body in very huge amount then the negative feedback of the body is activated the production of that particular hormone or chemical is stopped and vice -versa for negative feedback.

Explanation:positive feedback and negative both the feedback mechanism are achieved to maintain the proper homeostasis.

Example: release of clotting factor after blood loss is a positive feedback and a hormone is released and then suddenly there is a increase in hormone b, then the amount of hormone a will decrease this is a negative feedback.

8 0

3 years ago

Identify the most recent common ancestor of the following pairs: species 19 and species1; species 28 and species 14; species 22

USPshnik [31]

Answer:

Species 28 and 14

Explanation:

Take the species that has the greater number, and the subtract it with the number of the other species. Then you would be able to see how many new species evolved between them.

7 0

3 years ago