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jarptica [38.1K]
3 years ago
9

Why is heat described as "lost" energy?

Biology
1 answer:
Alisiya [41]3 years ago
8 0
In residential heating, convection is the mechanism by which heat is lost by warm air leaking to the outside when the doors are opened, or cold air leaking into the house through the cracks or openings in walls, windows, or doors. When cold air comes in contact with the heater in a room, it absorbs the heat and rises.
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The electrons for photosynthesis come from:
user100 [1]

Answer:

The energy comes from electrons produced by oxidation of biological molecules.

Explanation: In photosynthesis, the energy comes from the light of the sun.

Hope this helped! :)

6 0
3 years ago
Which of the following is the largest biome on earth?
AURORKA [14]

Answer:

taiga

Explanation:

taiga which is also known as coniferous or boreal forest . Also it is the largest terrestrial biome on the earth

4 0
3 years ago
Does anyone like 5sos or why don't we?
Fantom [35]

Answer:

Yes

Explanation:

3 0
3 years ago
Read 2 more answers
Assume that the left ventricle of a child's heart has an EDV=90mL, and ESV=60mL, and a cardiac output of 2,400 mL/min. His SV is
Sliva [168]

Answer:

SV = 30 ml/ beat.

HR = 80.

Explanation:

The formula to calculate SV is as follows:

SV = EDV- ESV.

Here EDV = 90ml (end diastolic volume), ESV = 60ml (end systolic volume) ans SV is stroke volume.

SV = 90-60

SV = 30ml/beat.

The formula to calculate HR is as follows:

HR = CO/SV

Here, HR is heart rate, CO is cardiac output = 2,400 ml/min and SV is stroke volume = 30ml/beat

HR = 2,400/30

HR = 80.

Thus, the SV is 30ml/best and HR is 80.

4 0
3 years ago
An action potential triggers the release of synaptic vesicles into the synaptic cleft by _____ channels, allowing _____ ions to
noname [10]

Answer:

1. opening Voltage gated channels

2. Calcium

Explanation:

The signals are transmitted in the neurons in the form of electrical signals and which are transformed into the chemical signals at the synaptic cleft.

The electrical signal is transformed into a chemical signal when the electrical impulse reaches the terminal of the axon and opens the calcium voltage channels. The calcium which is present in a higher amount than inside enter into the terminal and allows fusion of the synaptic vesicle carrying neurotransmitter and the neurotransmitter is released into the synapse.

The neurotransmitter then binds the receptors and initiates the electrical impulse in the postsynaptic neuron.

Thus, opening Voltage gated channels and Calcium is the correct answer.

7 0
3 years ago
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