"We are made of stardust" refers toa. the dust of dead skin cells we shed every day.
b. the rotating cloud of stardust that formed the planets.
c. the gases in the stars that formed the gases in the atmosphere.
d. the rotating cloud of stardust that formed LUCA and all the organisms that evolved later.

Answers

Answer 1

Answer: We are all made of stardust. almost every element on Earth was formed at the heart of a star. It is c

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A heterogeneous mixture is a
Except reproductive cells, all other cells of the body are _____ cells.
After a sperm cell and an egg cell unite, _____ has occurred. asexual reproduction fertilization conjugation pollination
The largest amount of groundwater is used for _______.a. drinking b. washing c. irrigation d. industry
The Robinson projection map is considered very useful because _____.all of the continents are the same size it shows land masses in three dimensions most distances, sizes, and shapes are accurate features near edges are most accurate

Explain how cellular respiration is the opposite reaction to photosynthesis.

Answers

Answer:

this is because during photosynthesis oxygen is released and in cellular respiration oxygen is taken in or inhalation takes place

hope it helps

Answer:

Cellular Respiration and Photosynthesis are almost opposite processes because photosynthesis removes carbon dioxide from the atmosphere while cellular respiration puts back carbon dioxide. Cellular respiration uses oxygen and has it's waste product of carbon dioxide (CO2).

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For glycolysis to produce ATP when no oxygen is present, it is necessary for cells to convert _____ to _____.A. ATP to NAD+
B. ATP to ADP
C. NADH to ATP
D. NADH to NAD+

Answers

The answer is D. NADH to NAD+

When no oxygen is present, anaerobic respiration occurs.It is the only way to produce ATP in this condition.NAD+ is necessary because it is converted into NADH and at the same time ADP is converted to ATP in the reaction of pyruvate synthesis from glucose.Therefore, NADH must be converted to NAD+ in order to have NAD+ always present in the cell.

In the light dependent photosynthetic reactions, light energy is converted into _________ energy, which is stored in molecules like ATP. Then, in the light independent photosynthetic reactions, this energy is used to convert CO2 into ________.A) chemical; sugars
B) sugar; chemical energy
C) chemical; H2O
D) electrical; H2O

Answers

In the light dependent photosynthetic reactions, light energy is converted into chemical energy, which is stored in molecules like ATP. Then, in the

light independent photosynthetic reactions, this energy is used to convert CO2 into sugar.

The answer is letter A) chemical; sugars

Frozen water has less density than liquid water. How does this property of water affect life on earth?

Answers

I think that Ice is denser than water to regulates the life of an organism living in the ice that would capable of them in living there. There are called Thermophiles that lives in by the sulfuric vents at the bottom of the oceans and if ice would be at the bottom, they would survive their.

Answer:

Water has various properties as frozen ice is less dense as 0.9340 g/cm cube compared to density of water at room temperature is 997 kg/m cube.

Explanation:

The dissolving effect of water is fundamental to life from son earth and it's due to this property of water that makes it more mobile and more elastic. As wherever water goes it carries with it the dissolved salts, nutrients and other chemicals that support life.

If water is at room temperature it can be used with other substances as to from compounds and give the desired results upon reacting with the various elements. As most liquids contract when they are cooled to ice forms that we have seen in glaciers the ice caps and polar landmasses have life frozen in freshwaters.

Ice can carry along with it various types of gases and rare earth that can be remained preserved inside the earth for years. Even earth core consists of liquid water which is itself a sign that life on earth is a result of the changing forms of water sphere on earth.

Inflammation, your skin, and macrophages are all part of the body's ___ immune system response to a pathogen. allergic general practiced specific

Answers

Inflammation, your skin, and macrophages are all part of the body's general immune system response to a pathogen.
General or non-specific immune response include the cells and mechanisms for defending the host from infection, but those mechanisms are not long-lasting. It includes anatomical barriers (like skin or mucose membranes),recruitment of immune cells to sites of infection, removal of pathogens by white blood cells (like macrophages)…

Answer:

general

Explanation:

just did the test on usatestprep

What happens when there is an error with the cell cycle?

Answers

During the cell cycle there are three check points to make sure there is no errors. But if there is still an error after the cell cycle the cell would grow abnormally and will become cancer.

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Except for identical twins, all the other human beings are genetically distinct from each other. Why is this true?