Why is carbon so abundant in living things when oxygen is the most abundant element on Earth? Carbon atoms can bond with one another to make chains and cyclic structures whereas oxygen atoms cannot form chains or cyclic structures.
Carbon atoms are found in compounds that are solids at room temperature whereas oxygen atoms are found in compounds that form gases
Carbon atoms have lower mass than oxygen atoms, which keeps the masses of living things within desirable limits.
Carbon atoms are more stable than oxygen atoms, which allows living things to have more stable compositions.

Answers

Answer 1

Answer: Carbon is so abundant in living things even though oxygen is the most abundant element on Earth because carbon atoms can bond with one another to make chains and cyclic structures whereas oxygen atoms cannot form chains or cyclic structures.
The correct answer is the first option.

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A dry soil sample has a volume of 500 mL. After 400 mL of water are added to the soil, the soil becomes saturated with150 mL of surface water left on top. What is the porosity of the soil?O 30%O 38%O 50%O 63%
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The function f(t) = 4t2 - 8t + 6 shows the height from the ground f(t), in meters, of a roller coaster car at different times t. Write f(t) in the vertex form a(x - h)2 + k, where a, h, and k are integers, and interpret the vertex of f(t). A. f(t) = 4(t - 1)2 + 3; the minimum height of the roller coaster is 3 meters from the ground B. f(t) = 4(t - 1)2 + 3; the minimum height of the roller coaster is 1 meter from the ground C. f(t) = 4(t - 1)2 + 2; the minimum height of the roller coaster is 2 meters from the ground D. f(t) = 4(t - 1)2 + 2; the minimum height of the roller coaster is 1 meter from the ground
Without the rough ER, cells would ?
Oxygen is released as a waste product by plants during the process of

Organisms made up of one or more cells with complex internal structure are called

Answers

The answer is Eukaryotes.

During a discussion about ecosystems, a student says, "plants eat sunlight, and animals eat other organisms." which response to the students comment is most accurate

Answers

The student says ' plants eat sunlight, and animals eat plant'. This statement is not accurate. The plants do not eat sunlight. The plants are known to use the energy from the sunlight to make their own food. The sunlight helps in carrying out the metabolic processes in the plants, which result in the formation of the sugar molecules, these sugar molecules act as the food for others.

Hence, it can be said that the plant make their food using sunlight and the animals eat plants as a food source,

In meiosis II what happens during anaphase?

Answers

Answer:

Pulling apart or separation of sister chromatids

Explanation:

Meiosis is a type of cell division that results in four daughter cells with each having half number of chromosomes as the parent cell. It is the cell division that leads to formation of gametes to enable sexual reproduction. Division occurs twice during meiosis because before the two halves of a duplicated chromosome called sister chromatids separate, it still needs to separate homologous chromosome, which is a similar but non-identical pair of chromosome received from both parents. Hence, meiosis occurs in a two step division process i.e. Meiosis I and Meiosis II.

Meiosis II is the mitotic division of each of the haploid cells produced in meiosis I. Note that, homologous chromosomes separate in anaphase I of meiosis I, and further undergoes cytokinesis (division of cytoplasm) to produce two haploid (reduced number of chromosomes) daughter cells.

During anaphase of meiosis II, the individual chromosomes (sister chromatids) separate at the centromeres (point of attachment between two sister chromatids). The separated chromosomes are pulled apart towards each pole of the cell by the spindle fibres.

Meiosis II the chromosomes are pulled to the center of the cell and line up randomly at the equato
Anaphase II the centromere of each chromosome splits -the sister chromatids separate and move to opposite poles

In the heart, the mixing of oxygen-rich and oxygen-poor blood is prevented by the . • septum. .
• pericardium. .

Answers

In the heart, the mixing of oxygen-rich and oxygen-poor blood is prevented by the muscular wall known as Septum.

What is the function of the heart?

The function of the heart is understood by the fact that it efficiently pumps blood throughout the body. This pumping of blood to the entire body delivers the supply of oxygen, hormones, and various other nutrients to each and every cell of the body for its metabolic processes.

The right and left sides of the heart are separated by a muscular wall which is known as a septum. It prevents blood without oxygen from mixing with the blood that has oxygen. The heart also has valves that separate the chambers and connect to major blood vessels.

Therefore, in the heart, the mixing of oxygen-rich and oxygen-poor blood is prevented by the muscular wall known as Septum.

To learn more about the physiology of the heart, refer to the link:

brainly.com/question/28068485

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Bright-field microscopes are used for most microscopic work. True or false?

Answers

Answer:

The correct answer will be option-true

Explanation:

A bright-field microscope is an optical instrument widely used by students and researchers all over the world.

The bright-field microscope is a compound light microscope which uses the light to see the samples. In the microscope the samples appear darker in color on the bright or light-coloured background. This enables the viewer to clearly see the sample in the microscope.

Thus, true is the correct answer.

true, Bright-field microscopes are used for most microscopic work.

What do two different neutral isotopes of the same element have in common?

Answers

The answer to this question is that two different neutral isotopes ofthe same element will have the same atomic number. This is due to themhaving the same number of protons, and it is these protons whichdetermine the atomic number. However, these istotopes will havedifferent masses due to a difference in the amount of neutrons.

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