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Mekhanik [1.2K]
3 years ago
7

WILL AWARD BRAINLIEST PLEASE HELP IMPORTANT HELP IS NEEDED PLEASE PLEASE QUICK!!!

Biology
1 answer:
mixer [17]3 years ago
5 0

Answer:

while walking through a dragon layer the dragon layer what is there a line of birth of dragon parents being the only available at the moment green and

Explanation:

hope it helps to

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Match the time frame listed on the left with the characteristic listed on the right.
grigory [225]

1.Tyrannosaurus Rex Lived in the Mesozoic Era

2.The largest mass extinction happened in the Paleozoic Era

3.Life exploded for the first time in the Precambrian Era

4.The Chicxulub crater in the Cenozoic Era

5 0
3 years ago
Read 2 more answers
Energy enters a food chain as heat energy and leaves it as light energy.
hjlf

Answer:

The statement that says "Energy enters a food chain as heat energy and leaves it as light energy" is false.

Explanation:

The energy that enters the food chains, first of all, is light energy from the sun. This energy is assimilated by plants to convert it into chemical energy, through  photosynthesis.

When energy flows from producers, plants, to consumers and decomposers, a great amount of <u>energy is lost, in the form of </u><u>heat energy</u>, due to the metabolism of living beings. Additionally, the second law of thermodynamics states that when energy passes from one form to another it leads to disorder in the system, which would also explain the loss of energy.

The true statement is "Energy enters a food chain as <u>light energy</u> and leaves it as <u>heath energy"</u>.

8 0
2 years ago
Which letter or pair of letters would represent the genes of a hybrid? Ss ss s S
Vadim26 [7]
Ss would represent the hybrid.  Pure genes are PP hybrid would would be Pp 
5 0
3 years ago
Did the oldest rocks have little or no fossils
zhuklara [117]
The older the rocks were the more like they were to have fossils.
5 0
3 years ago
The proper function of the cardiovascular system relies on blood following the correct pathway through the heart. Valves within
Nadya [2.5K]

Answer:

The Mitral/Bicuspid Valve

Explanation:

The heart is composed of 4 chambers: left and right atria, and left and right ventricles. The “right heart” (right atrium and ventricle) receives deoxygenated blood from the systemic circulation through the Vena Cava, and impels this blood towards the lungs through the Pulmonary Arteries where it will be oxygenated. The “left heart” (left atrium and left ventricle) receives oxygenated blood from the pulmonary circulation through the Pulmonary veins and impels this blood towards the systemic circulation through the Aorta artery.

The systemic and pulmonary circuits work in series, and maintaining the unidirectional course of the blood flow is very important. This can be done by the presence of fibrous valves that are present between the atrium and the ventricles, and in between the ventricles and the Pulmonary/Aorta artery.

The location of these structures are as follows:

Systemic circulation ⇒ Right Atrium → [Tricuspid Valve] → Right Ventricle → [Pulmonary Valve] → Pulmonary Artery ⇒ Pulmonary circulation

Pulmonary circulation ⇒ Left Atrium → [Mitral/Bicuspid Valve] → Left Ventricle → [Aortic Valve] → Aorta ⇒ Systemic circulation

3 0
3 years ago
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