_compounds do not contain carbon

Answer:

During the New Moon the far side of the Moon is illuminated by the Sun, while the side that faces the Earth lies in darkness so the Moon is invisible. ... As the Moon follows its path from the Full Moon position less and less of the Earth-facing side is illuminated resulting in the “waning” phases.

Explanation:

Since the given organisms prepare their own food, hence none of the organisms mentioned are heterotrophs. Thus, the correct answer is Option D.

Heterotrophs are organisms that depend on other species (plants and animals) for food since they are unable to prepare it for themselves. They are dependent on these producers for food, either directly or indirectly.  

The rose and the pine tree, two of the choices given, are both autotrophs since plants can make their own food through photosynthesis. On the other hand, the deep-sea tubeworm is a chemoautotroph, meaning it gets its energy from inorganic substances in its surroundings.

Therefore, the correct answer is Option D.

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Answer:

The belief that one's homeland needs to be protected from immigrants is called isolationism is true. Reason American isolationists, who long in the lead, in fighting, as they see it, to stave off the tragedy of a swing in American public opinion back from the path it started to follow in 1919.

In this question, we combine blood cells with their associations which are erythrocytes, leukocytes, platelets.

Also called red or aromatic blood cells, have great flexibility, shape and form of a biconite disk, that is, they have thinner centers and thicker edges.

Are also called white blood cells as cells that act in defense of our body, working to fight allergies and infections.

Are cells that are made in the bone marrow and circulate in the bloodstream and help the blood to clot.

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the answer is A because green is the dominant trait

Answer:

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The statement in question that does not provide evidence to support that mice coat colors could have evolved through natural selection is option A.

In simple terms, Natural selection is the method by which evolution takes place. It implies that over time, traits that are beneficial to the survival of an individual will be inherited from generation to generation. option B provides possible evidence of this in that it links the coat color of mice to heritage, therefore showing that it may be passed from generation to generation.

Option C also provides evidence to support this by showing that mice with varying coat colors are not related. In natural selection, if a trait is beneficial to survival, most if not all of the population will posses that trait. If coat color is linked to natural selection, mice of distinct colors would have had to evolve separately, and therefore would not be related.

Finally, option D brings about the influence of the natural predator of mice as a driving factor and catalyst of this evolution by natural selection.

Therefore, we can confirm that of the options listed, the one that does not provide any form of evidence to promote the theory that natural selection is how mice coat colors have evolved is option A.

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It would be the pacific plate.

To the left of the North American plate and South American, is the pacific plate which shares its border with both plates.

You had chosen the African plate it appears, however it only shares a border with the South American plate, not the North American plate.

Hope that helps!

Answer:

Plant Cell

Explanation:

The cell contains chloroplasts and a cell wall, allowing durability but hindering movement and allowing photosynthesis. This is a

Plant cells and cyanobacteria (also photosynthetic) obtain the ATP required to power their usual cellular functions from Cellular respiration.

Plant cells and cyanobacteria are photosynthetic creatures that can produce their nourishment through the process of photosynthesis. They use light energy to transform carbon dioxide and water into glucose and oxygen during this process. However, to fuel their usual cellular functions, including protein synthesis, DNA replication, and cell division, cells require a steady source of energy in the form of ATP.

Cellular respiration produces the ATP necessary for plant cells and cyanobacteria. While photosynthesis generates glucose and oxygen, cellular respiration breaks down glucose molecules to release energy as ATP. This occurs in the mitochondria of plant cells and cyanobacteria. Glycolysis, the Krebs cycle, and oxidative phosphorylation are the three steps of cellular respiration. The first stage, glycolysis, involves the breakdown of glucose molecules into pyruvate, which releases a tiny quantity of ATP.

Pyruvate is transformed into acetyl-CoA in the Krebs cycle, which then enters a loop of reactions that creates additional ATP and carbon dioxide. Finally, electrons from the Krebs cycle are passed via a series of protein complexes in the third stage, oxidative phosphorylation, to form a proton gradient across the mitochondrial membrane. This gradient is then used to drive the production of ATP.

While photosynthesis also produces ATP through light reactions, this ATP is primarily used to power the photosynthesis itself, rather than the regular cellular processes of the plant cell or cyanobacterium. Therefore, the correct answer to the question is Cellular respiration.

For chromosome mobility to be facilitated, the chromosomes must compress during mitosis.

Colchicine is a substance that is used to freeze the cells during the mitotic process in order to block or inhibit the movement of the chromosomes. Additionally, the faithful replication or transmission of the genome to those daughter cells depends on this mechanism. Cells divide during the interphase, however cell condensation is discovered to be taking place during the prophase. Chromosomes are permitted to travel prior to the mitotic process, and during this time, entanglements and breaks were also seen.

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Answer:A

Explanation:

Answer:

Cualquiera sea más ligero porque será más fácil de empujar. Dando como resultado la caja para superar la línea de meta más rápido

Explanation:

Answer:

what don't you know how to do?

Answer:

True

Explanation:

Bone marrow mesenchymal stem cells have pluripotent potential and mainly into osteoblasts into the skeleton, but its unbalanced.

Answer:

True

Explanation:

Stem cells from bone marrow are pluripotent which can differentiate from signaling mechanisms.

Answer:

menstration period is when a woman's body releases tissue it no longer needs so then the girl bleeds (usually for 7 days) and then every month or so (different for all girls) the uterus lining gets thicker to prepare for a fertilized egg if the woman becomes pregnant. :)

Answer: A trait that disappeared in the F1 generation but reappeared in the F2 generation was always a RECESSIVE TRAIT.

Explanation:

The basic laws of genetics were laid down by an Australian monk in 1866, Gregor Mendel. From the results of his experiment, Mendel came to certain conclusions which are referred to as the Mendel's Laws of Heredity one of which includes the Law of Segregation of genes.

The Law of Segregation states that:

--> the hereditary characters of an organism are determined by genes

--> a gene for a character may have alternative forms ( alleles) which express the character in different ways;

--> if a diploid organism has two different alleles ( heterozygous) for a character, one allele may be dominant, dictating the expression of the character to the complete exclusion of the other ( the recessive allele).

Furthermore, Mendel's experiments can be proven by the study of a single- factor inheritance pattern. This is achieved by crossing a pure stock of white- flowered pea plants and red - flowered ones. The offspring of this cross are all red flowered pea plants. They form the F1 GENERATION.

Since only red flower colour is seen in the F1 generation, we say the the red flower form of the character is dominant. White colour, which does not show up in the F1 generation, but reappear in F2 GENERATION when F1 GENERATION is crossed, is said to be the recessive form of the character.

Therefore, this implies that the recessive traits can skip a generation to appear in future generations according to Mendel's experiments.

Answer: Yea it was Recessive.

Explanation: I got it correct on the test

In photosynthesis, light energy from the sun is converted into chemical energy and is stored.

Photosynthesis is a method that plants and other organisms use to convert light energy into chemical energy that can then be released to fuel the organism's activities via cellular respiration.

Photosynthesis is the conversion of light energy by phototrophs into chemical energy, which is then used to power cellular activities.

Sugars, which are formed from water and carbon dioxide, are used to store chemical energy.

Animals require oxygen to survive, and plants serve as nature's air filter, filtering out harmful carbon dioxide.

Thus, this way, the light energy gets converted into chemical energy.

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In order to break up food to be digested, birds utilize their crop and gizzard. The crop stores food temporarily, and digestive enzymes are added to it to aid in digestion.

The food then moves to the gizzard, which is a muscular organ that breaks down food mechanically.Birds do not have teeth to break down food like mammals do. The food is broken down in their gizzard, which contains small, hard objects such as grit or small stones. As the bird’s gizzard squeezes and grinds, the hard particles help break up the food into smaller pieces, making it easier to digest.

The digestive system of birds is well adapted to their diet, which consists mostly of seeds, grains, and insects. They are able to extract nutrients efficiently and quickly from their food, allowing them to maintain their high metabolism and energy needs.

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Miller-Urey experiment was a chemical experiment that simulated the conditions of the prebiotic Earth, by testing the chemical origen of life under the conditions of the enviroment in that time. The experiment used water, ammonia, hydrogen, and methane seled inside a sterile 5-liter glass flask to a 0,5-liter flask half-full of water being it continuous exposed to electrical sparks. Miller could show that the prebiotic condition for life in his test produced 11 of the 20 known amino acids, showing that from inorganic simple molecules was the start of origen of life in Earth.

Answer: The sky appears black at night due to the absence of sufficient light reaching our eyes from distant stars and galaxies.

Explanation:

The sky appears black during the night when there is no significant source of illumination. This phenomenon is known as the "night sky paradox." The reason behind the blackness of the night sky is primarily attributed to the vastness of the universe and the limitations of human vision.

During the day, the sky appears blue because of a process called Rayleigh scattering. The Earth's atmosphere scatters shorter blue wavelengths of light more than longer wavelengths, creating the blue color we observe.

At night, when the sun is no longer visible, our line of sight extends deeper into space. We can observe countless stars in various directions, implying that there should be light coming from all those stars. However, the night sky still appears dark overall.

The reason for this darkness is that the universe is not infinitely old. It has a finite age. Consequently, the light from the most distant stars and galaxies has not had enough time to reach us yet. As a result, the vast majority of the universe is beyond our observational reach, and we perceive the night sky as predominantly black.

In addition, there are other factors that contribute to the blackness of the night sky, such as interstellar dust, which absorbs and scatters light, and the absorption of light by gases and particles in our atmosphere.

Therefore, the sky appears black at night because the light from distant stars and galaxies has not reached us, and the absence of significant illumination sources contributes to the overall darkness.

Homeostasis keeps the organism in a dynamic equilibrium within the homeostatic range. A disruption in dynamic equilibrium is indicated by the temperature change between point C and D. Option C is correct.

Homeostasis is the organism's capacity to keep the body in constant internal equilibrium, even when the external environment is oscillating.

Homeostasis is critical to keep the correct internal functioning of the body.

Different functions -blood pressure, body temperature, respiratory rate, and blood glucose levels, among others- are kept in a restricted range around a reference point, even though external conditions may be changing.

When a sudden change occurs in the internal functioning that disturbs this equilibrium, the organism counters it back by negative or positive feedback.

In the exposed graph we can see,

The references point A, B, and C suggest that during the first 10 hours, approximately, the body was in equilibrium.

A change in the internal functioning broke the equilibrium, rising temperature to 38ºC, out of the homeostatic range.

The organism took the internal values to their original state, and at points E and F, the organism was in equilibrium again.

A disruption in dynamic equilibrium is indicated by the temperature change between point C and D.

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Answer:

B is the answer. I hope this is helpful :)

Answer:

The answer would actually be D

Explanation:

I just took the quiz

Answer:

Purple flowers

Explanation:

F is dominant over the recessive trait of t. So F is the trait that will be expressed, rather than t

Breeding between different species, although possible, is often complicated as it results in infertile or non-viable offspring. This usually occurs due to the difference in the karyotype.

The karyotype is the set of chromosomes that an organism possesses, for example, the human has 23 pairs of chromosomes (46 chromosomes).

For reproduction to be successful and give rise to healthy organisms, the parents must be of the same species (have the same number of chromosomes and these chromosomes must be homologous, i.e. have similar genes).

Therefore, unlike organisms of different species, the reproduction of 2 organisms of the same species can result in fertile offspring capable of reproduction.

An alteration in electrophoretic mobility, which refers to the movement of charged particles in an electric field, is interpreted as a change in the primary structure of the protein under study because the mobility of a protein is directly related to its charge and size.

The primary structure of a protein is determined by the sequence of amino acids, which influences the protein's charge and size. Any changes in the amino acid sequence will affect the protein's charge and size, thereby affecting its electrophoretic mobility. Therefore, a change in electrophoretic mobility can suggest a change in the primary structure of the protein. This is important because changes in the primary structure can have significant implications for the protein's function, stability, and interactions with other molecules. Overall, analyzing changes in electrophoretic mobility is a useful tool for studying protein structure and function.

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Answer:

Explanation:

i) polymer

ii) monomer

iii) polymer

Answer:

The deceleration of the plane is 0.25 m/\(s^{2}\).

Explanation:

Deceleration is the converse of acceleration.

From first law of motion, we have;

v = u + at

where: v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.

Thus,

v = 50 m/s

u = 80 m/s

t = 120 s

50 = 80 + 120a

50 - 80 = 120a

-30 = 120a

a = \(\frac{-30}{120}\)

  = -0.25

a = -0.25 m/\(s^{2}\)

The deceleration of the plane is 0.25 m/\(s^{2}\).