Which are features of Copernicus's model of the solar system? Select the three correct answers.
A.Earth is fixed to a crystalline sphere.
B.All planets orbit the Sun at the same speed.
C.The planets move in perfect circles.
D.The Sun is at the center.
E.The outer planets move in epicycles.
F.The stars are fixed to an outer sphere.​

Answer:

Photosynthesis and metabolism are among the most complex areas in biology so given the nature of this forum I've kept the answers simple and brief.

Carbon is of central importance to all biological systems due to its special bonding properties allowing it to form various bonds with other atoms and produce a wonderfully complex range of molecules used by life.

In photosynthesis inorganic carbon in carbon dioxide gas is fixed to hydrogen to produce sugar, an organic molecule. In this case the carbon gains electrons so it is 'reduced' and this process requires energy in the form of light. Once in sugar form, the process can be reversed and the carbon can be oxidised back into carbon dioxide during cellular respiration, releasing energy.

So in photosynthesis, the carbon from carbon dioxide is reduced to form a sugar molecule. When transitioning to respiration, the carbon in the sugar is oxidised to form carbon dioxide again in the reverse reaction to photosynthesis.

The carbon is transferred between molecules through various intermediate steps during these processes, involving enzymes (biological catalysts) to assist in cleaving specific bonds at each stage. During cellular respiration (an energy release reaction) as the carbon is successively oxidised electrons are liberated that are used as part of the energy release. These electrons are captured or 'carried' by special organic molecules called NAD and FAD (reducing them) which in turn can then be oxidised to produce the universal energy currency of life: ATP molecules. ATP is a small bio molecule containing a high energy phosphorous bond that can be broken to release energy to do cellular work. It is used by all life that we know of and is the ultimate product of cellular respiration.

The carbon atom in a CO₂ molecule in the air can become a part of the

cellulose molecule in a plant by the carbon dioxide molecule reacting with the  water during photosynthesis to form Glucose.

     plants which are such as the roots and stems and help in the formation of cellulose.

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Answer:

length of base(l) = 14m

slant height (s)=25m

we know,

slant height(s)=√(l/2)^2 + h^2

or, 25= √(14/2)^2+ h^2

or, 25 = √49+h^2

or, 25^2 = 49+h^2

or, 625 = 49 + h^2

or, 625-49=h^2

or, √576 =h

h=24

Therefore vertical height (h)= 24m

Again,

Volume of square pyramid (v) = 1/3 L^2h

or, v =( 1/3) 14^2×24

or, v= 4704 / 3

Therefore, V= 1568 cubic meter.

Answer:

Since 2001, the amount of electricity generated by Minnesota's independent power producers has increased dramatically. The majority of the electricity generated in Minnesota is generated by utilities; however, the amount provided by independent power producers has increased significantly over the last two decades.

Answer:

Allele frequencies

Explanation:

The only component that is transmitted from generation to generation is the genetic material (genes), the fact that an individual leaves more descendants implies that their genetic variants (alleles) will be more represented in the next generation. The frequencies of the different alleles will change from one generation to another, and this change will be irreversible when the set of genes in the population is considered, since it is highly unlikely that a previous configuration will be returned in all gene variants. Hence, from a population point of view, evolution is ultimately a cumulative and irreversible change in the proportions of different gene variants in populations. The agents that change the allele (or gene) frequencies of populations, that is, factors of evolution, are mutation, genetic drift, migration, and natural selection. Mutation is a factor that increases genetic diversity. Natural selection is the process by which the gene frequencies involved with certain traits vary from generation to generation, since some variants of the trait have a greater capacity than others to survive and produce offspring. The mutation rate of a gene or DNA sequence is the frequency at which new mutations occur in that gene or sequence in each generation. In each generation there is a gene raffle during the transmission of gametes from parents to children which is known as genetic drift. In the absence of gene flow, gene drift will also lead to local differences in allele frequencies.

Answer:

In physics, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time.

Explanation:

Answer:

The model is right.

Explanation:

The model made by the students about transform plate boundary is right because in the transform plate boundary, the tectonic plates moves horizontally by rubbing each other. As the tectonic plates rub against each other, huge stresses are created that can cause breaking the portions of the rock that results in earthquakes in that region. The area or regions where these breaking of rocks occur is known as faults. San Andreas Fault in California is the example of transform plate boundary.

Answer:

The chances that this couple will inherit this disease is 100%

Explanation:

Knowing that her husband has normal hemoglobin (SS) while she does not (ss), we can make a punnett square for this. After doing so, you can see that all squares end up with Ss. So, even though they carry this disease, it will not affect them.

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Sources: N/A

Answer:

Trees, crickets, bacteria, and deer are biotic. The rest are abiotic.

Explanation:

Biotic factors are living organisms, while abiotic factors are non living. Hope it helps :)

Answer:

In chemical digestion, enzymes break down food into the small molecules the body can use. It is important to break down macromolecules into smaller fragments that are of suitable size for absorption across cell membranes./ monomers/when you eat you take in molecules/When atoms join together to form molecules, they are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons between the atoms/ of bond: ionic bonds, covalent bonds, or metallic bonds./Proteins.

Lipids.  

Carbohydrates.  

Nucleic Acid

Answer:

D

Explanation:

Im pretty sure tell me if im right

Homeostasis is a regulating process of the body in response to external environments, digestive system provides glucose for cellular respiration.

Organ systems in our body are regulated with each other and these interactions maintain homeostasis.

The respiratory system interacts with the circulatory system for gaseous exchange and the excretory system depends on the circulatory system for blood filtration, and the nervous system regulates the system through the brain.

Homeostasis is necessary because the external environment can change anytime, and the digestive system maintains food conditions according to the body's needs.

Therefore digestive system maintains homeostasis by providing glucose for cellular respiration.

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When there is no pattern to a population's growth, it is known as stable. The correct option is B.

The rise in the number of people on Earth is referred to as population growth. The majority of human history saw a relatively steady population size. Energy, food, water, and medical care, however, became more accessible and dependable as a result of innovation and industrialisation.

The predicted population expansion is due in part to factors like an increase in young, unmarried mothers, high fertility rates for specific ethnic groups, and a lack of access to contraception and sexual education.

When age-specific fertility and mortality rates are constant over a long period of time, there is a stable population growth.

Contrarily, an irregular population increase is one in which there is no structure and the population size behaves chaotically.

Thus, the correct option is B.

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Answer:

The three main rock types are igneous, metamorphic, and sedimentary. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation. Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.

Explanation:

Answer:

Black-footed Ferrets are weasel-like in body shape and form but are heavier than ... They are therefore limited to the same open habitat used by prairie dogs: ... (several thousand acres of closely spaced colonies) can support and sustain a ... to 60 hectares of prairie dog colony is needed to support one Black-footed Ferret, ...

Explanation:

Answer:

ver explicacion

Explanation:

La fotosíntesis es el proceso mediante el cual las plantas verdes fabrican su propio alimento en presencia de luz solar, clorofila, dióxido de carbono y agua.

La intensidad de la luz afecta la tasa de fotosíntesis, cuanto mayor es la intensidad de la luz, mayor es la tasa de fotosíntesis y viceversa. Cuando hay una mayor intensidad de luz, hay más luz disponible para impulsar las reacciones de la fotosíntesis.

Answer: i believe it's C or D

Explanation:

Your Answer is C) species diversity

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Answer:

Sure what is it?

Explanation:

Answer:

wheres the upload?

Explanation:

Answer:

that would be an acid, its sulfuric acid

Answer:

C. Acid

Explanation:

Explanation:

Vascular tissues are absent.

-Sex organs are multicellular and jacketed.

-Archegonium is flask shaped with tubular neck and a swollen venter. ...

-Sexual reproduction is of oogamous type. .

-The sporophyte of sporogonium is parasitic over the gametopphyte.

Answer:

Plants occur in damp and shaded areas.

The plant body is thallus like, i.e. prostrate or erect. It is attached to the substratum by rhizoids, which are unicellular or multicellular. They have a root-like, stem-like and leaf-like structure and lack true vegetative structure.

Answer: B. Floating in the cytoplasm

Explanation: Prokaryotic cells do not have a nucleus or any membrane bound organelles. Therefore the DNA just floats.

Answer:

A gene codes for a particular protein that is involved in the expression of a trait.

Explanation:

I hope this information is correct and helps you!

Answer:

D.  Traveling to the heart

Explanation:

The arteries carry oxygen and nutrients away from your heart, to your body's tissues. The veins take deoxygenated blood from the tissues and back to the heart.

Answer:

energy passing through the water, causing it to move in a circular motion. When a wave encounters a surface object, the object appears to lurch forward and upward with the wave, but then falls down and back in an orbital rotation as the wave continues by, ending up in the same position as before the wave came by.

Explanation:

Answer:

Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. The gravitational pull of the sun and moon on the earth also causes waves.

Answer:

wood is not attracted to her magnet