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Gnom [1K]
3 years ago
15

What does not deliver deoxygenated blood to the heart?

Biology
1 answer:
FrozenT [24]3 years ago
4 0

Answer:

Pulmonary veins

Explanation:

In the circulatory system, the heart is responsible for for pumping oxygenated blood throughout the body and deoxygenated blood to the heart.

Normally all veins carry deoxygenated blood. However the pulmonary vein is the only vein that carries oxygenated blood.

They carry oxygenated blood from the lungs to the heart.

However the Superior and inferior vena cava are responsible for delivering deoxygenated blood to the heart.

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A. chemical, because it's in your body
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3 years ago
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As altitude increases, air pressure __________ (increases, decreases, or stays the same). This is a(n) ________(direct, indirect
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Answer:

The correct answer is - decreases. direct.

Explanation:

Altitude is a distance measurement of distance in a vertical manner or how high something from the sea level. It helps in the height of the mountains and different places.

Air pressure and altitude are the two factors that are in direct relation as the air pressure decreases with the increase in altitude. the gases present in the higher elevations are fewer than the sea level.

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3 years ago
Genes, which are the molecular units of heredity, are composed of specific sequences of four different__________.
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Answer:

Nucleotide bases.

Explanation:

Unique sequences of bases makes up a nucleotide. These nucleotide sequencing are used by DNA as a genetic code of information that determines type of cells, proteins and the whole organismal structure.

There are four nucleotide bases, Adenine and guanine termed purines are big, cytosine and thymine called pyrimidines are small. A purine pairs with a pyrimidine, such that adenine pairs with thymine and guanine pairs with cytosine. The bases are the same but each DNA uniqueness lies in the sequence of base pairing.

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3 years ago
From the big bang theory, after cooling the debris, allowed the formation of the following
galben [10]

Debris (Hydrogen and helium) from the big bang gravitationally clumped together, and frequently these clumps got big enough to start fusion in their centers and form stars.

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The Big Bang theory explains how the cosmos expanded from a highly dense and hot starting condition. The evolution of the observable cosmos from the earliest known times up to its later large-scale shape is explained by this prevalent cosmological model. A wide range of observable phenomena, such as the quantity of light elements, the cosmic microwave background (CMB) radiation, and large-scale structure, are all thoroughly explained by the model.

Eventually, the large gaseous balls fuse hydrogen into heavier elements, which causes them to become stars. The periodic table's iron is created when stars combine light elements to create heavier ones.

The remaining elements of the periodic table are created as a result of the stars exploding, producing white dwarfs that explode, or forming neutron stars that collide and explode. The remaining hydrogen gas is now "contaminated" by this other material, and some of it forms an accretion disk in which planets form when it compresses under gravity.

To know more about stars, go to URL

brainly.com/question/10865002

4 0
1 year ago
What is the starting material in transcription?
DanielleElmas [232]

Answer:To begin with, initial transcription components include DNA, RNA polymerase core enzyme, and the σ subunit. Translation components include mRNA, small and large ribosomal subunits, initiation factors, elongation factors and tRNA.

Explanation:

4 0
2 years ago
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