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4 years ago

Is the sperm cell apart of the DNA,Organelles,or molecular building blocks ?

1 answer:

7 0

Cell that makes up all of the body tissues and organs, except gametes ... fusion an egg and sperm cell.... DNA, organelles and molecular building blocks.

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Palmas is closer to the equator than Neuquén. Which location has a warmer air temperature and why? *

DIA [1.3K]

Explanation:

Palmas is closer to the equator than Neuquén. Which location has a warmer air temperature and why? Neuquén, because more energy is transferred from the sun directly to the air. Neuquén, because more energy is transferred from the sun directly to the surface, and then from the surface to the air. I hope this helps

4 0

3 years ago

Read 2 more answers

How are the amounts of carbon dioxide and oxygen inhaled by lungs different from the amounts exhaled? How do cellular respiratio

irga5000 [103]

Answer:

1. Gas exchange takes place by diffusion in the alveoli within the lungs. As a result the composition of inhaled and exhaled air is different.

...

Inhaled and exhaled air.

Gas % in inhaled air % in exhaled air

Oxygen 21 16

Carbon dioxide 0.04 4

Nitrogen 79 79

NB These figures are approximate.

2. The amount of carbon-dioxide atoms released by respiration are exactly equal to the atoms of these materials contained in the oxygen and carbon converted. In this way respiration has conserved the mass or material and in this way followed the law of conservation of mass.

Explanation:

What is Cellular Respiration?

Cellular Respiration is the process in which the cells of living things break down the organic compound glucose with oxygen to produce carbon dioxide and water. The overall chemical equation for cellular respiration is:

C6H12O6 + 6O2 → 6CO2 + 6H2O + energy (stored in ATP)

Cellular respiration takes place in the cells of all organisms. It occurs in autotrophs such as plants as well as heterotrophs such as animals.

Q: How is cellular respiration related to breathing?

A: Breathing consists of inhaling and exhaling, and its purpose is to move gases into and out of the body. Oxygen needed for cellular respiration is brought into the body with each inhalation. Carbon dioxide and water vapor produced by cellular respiration are released from the body with each exhalation.

Energy Changes in Cellular Respiration

The reactions of cellular respiration are catabolic reactions. In catabolic reactions, bonds are broken in larger molecules and energy is released. In cellular respiration, bonds are broken in glucose, and this releases the chemical energy that was stored in the glucose bonds. Some of this energy is converted to heat. The rest of the energy is used to form many small molecules of a compound called adenosine triphosphate, or ATP. ATP molecules contain just the right amount of stored chemical energy to power biochemical reactions inside cells.

hope i helped if not feel free to let me know

5 0

3 years ago

What layer of the atmosphere contains almost 80% of the atmospheres total mass

irina [24]

Solution:

The troposphere is the atmospheric layer closest to the planet and contains the largest percentage (around 80%) of the mass of the total atmosphere.

The troposphere is the lowest major atmospheric layer, extending from the Earth's surface up to the bottom of the stratosphere. The troposphere is where all of Earth's weather occurs. It contains approximately 80% of the total mass of the atmosphere.

The troposphere is characterized by decreasing temperature with height (at an average rate of 3.5 degrees F per thousand feet, or 6.5 degrees C per kilometer). In contrast, the stratosphere has either constant or slowly increasing temperature with height.

Thus the right answer is troposphere.

7 0

3 years ago

A group of scientists is studying the fossils of three different hominids. They find that the DNA of the first hominid is more s

oksano4ka [1.4K]

"The first and second hominids were able to mate and produce offspring, but the first and third hominids could not." Although that might be the case, it might also not. "More similar" needn't be 'similar enough' (disregarding the fact that all homonid specimens involved could happen to share the same sex). 

"The first and second hominids shared the same geographic location, while the third was isolated." 

That information would be revealed by the geographic location they came from. 

"The first and second hominids most likely became extinct before the third hominid species." 

Perhaps or perhaps not. As ancestral lineages can survive for longer than descendant lineages, it needn't apply. Still, I suppose the non-existent law of averages provides some sort of justification for the use of "Most likely". 

"The first and second hominids have a more recent common ancestor than the first and third hominids." 

Assuming these are all in the same neat lineage, then the most recent common ancestor of the first and second is also the most recent common ancestor of the first and the third.

6 0

3 years ago

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Why is the son who recieves the allele for colorblindness from his mother always colorblind?

Tanya [424]

Beacuse men only have one X chromosome so beacuse colourblindness is found on the X chromosome then if the X inherited from his mother contains the allele for colourblind then he will be colourblind. women have two X chromosomes so even if they inherit one colourblind allele then if the other X contains a normal vision allele then they will be able to see normally.

6 0

4 years ago