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oksano4ka [1.4K]
3 years ago
8

Explain what energy is and what one source of it is

Biology
2 answers:
Leokris [45]3 years ago
8 0

Answer: Energy is the ability and capacity to do work or act upon something. Electrical energy is the movement of electrons that is used to power something to do a action. One source of energy if you are talking about the body is your lungs taking in oxygen, the oxygen is distributed amongst your body into your blood cells to provide energy. In an electrical viewpoint, a source would be a lightning bolt, this is created when positive protons are attracted to the negative particles on the ground, which leads it to shoot down rapidly making a shift of energy and making a loud sound and also bright light as they collide to make a burst of power.

user100 [1]3 years ago
4 0
Energy is the capacity of a physical system to perform work. Energy exists in several forms such as heat , kinetic or mechanical energy, light, potential energy , electrical, or other forms. Energy is the ability to do work. Energy sources could be classified as Renewable and Non-renewable.
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How does blood pressure change during heavy exercise?
murzikaleks [220]

Answer:

The blood pressure is increased to pump more blood to distribute more oxygen to the muscles

Explanation:

When we do activities that demand heavy exercise like running, our body needs more oxygen to carry out property the exercise.  Oxygen is transported to muscles by the circulatory system (principally blood), our heart starts to pump faster the blood ( increase the blood pressure)  to distribute the oxygen between muscles, consequently, we start to breathe faster to increase the oxygen intake.  

6 0
2 years ago
Which of the following is true of all animals?
Sergio039 [100]

Explanation:

they are multicellular

7 0
2 years ago
students commonly confuse Saccharomyces cerevisiae and staphylococcus aureus when viewed on a microscope slide how could you mic
n200080 [17]

Answer: Staphylococcus aureus is a gram positive bacteria which is round shaped bacterium that is usually found in the body. They are located in the respiratory track of the body.

Saccharomyces cerevisiae is a yeast species which is used in the brewing, wine making and baking long time ago.

When both of the species were observed under microscope then Saccharomyces cerevisiae will be larger than Staphylococcus aureus.



3 0
3 years ago
Help please will give brainliest due soon
kykrilka [37]

Answer: Hi there, I'm so sorry no one answer your question here is what I got

The nervous system makes you thirsty. The integumentary system makes you sweat.

The hypothalamus is part of the nervous system and controls vegetative functions, such as hunger, thirst and body temperature. When you run a race, your body starts to lose fluids due to sweat. At that moment the nervous system (through the hypothalamus) trying to maintain homeostasis in your body signals that you are thirsty.

As already mentioned above, when you participate in a race you start to sweat. This is a reaction of the integumentary system, through the skin, releasing fluids to regulate your body temperature.

Explanation:

3 0
3 years ago
A student observed cells from an onion root tip in a microscope. The diagram shows her observation. What was happening in the ce
d1i1m1o1n [39]

Answer:

Cell Division!

Explanation:

What is being witnessed is mitosis. That includes your general interphase, anaphase, telophase, metaphase, cytokinesis, etc. These are all part of cell division.

8 0
3 years ago
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