Plant cells perform photosynthesis,which occurs in the

A) chloroplast

B) cytoplasm

C) mitochondria

D) nucleus

The creation-evolution controversy (also termed the creation vs. evolution discussion or the origins dispute) includes an ongoing, recurring cultural, political, and theological debate about the issues of the Earth, of humanity, and of other life. Within the Christian world, creationism was once widely considered to be true, but since the mid-19th-century evolution by natural choice has been verified as an empirical scientific fact.

Question:

The creationist and evolutionist are in agreement on all of the following items except:

• cell complexity

• the role of certain organelles in cell chemistry

• the ability of matter to be self organizing

• the levels of organization of complex organisms

Answer:

• the ability of matter to be self organizing

Explanation:

A creationist is a person who believes in the creation story. A creationist believes that life originated from a Creator( God) who made the heavens and the earth. A creationist believes God created human beings, fish, birds, and every other living organism on earth. This belief system is a religious belief.

An evolutionist believes in the the theory of evolution. An evolutionist believes that life develops millions of years ago due to the evolution of simple life forms present on earth.

A evolutionist believes that organisms evolves of change due to physical and behavioural characteristics that they inherited.

A creationist and an evolutionist disagree on the fact that matter is self organizing.

Answer: The correct answer is D) DNA is in a nucleus in eukaryotes.

Prokaryotes are those organisms that lack a well defined nucleus and membrane bound subcellular organelles (like endoplasmic reticulum, golgi complex, mitochondria). The genetic material lies in the cytoplasm of the cell in these organisms.

Example - Bacteria like E.coli.

On the other hand, eukaryotes are those organisms that contain a well defined nucleus that possesses the genetic material (DNA). These organisms also contain membrane bound subcellular organelles.

Example - Plants and animals.

The DNA (Deoxyribose nucleic acid) of the eukaryotes is different from that of prokaryotic DNA based on their nuclear structure, a number of a chromosome, their binding protein, and selective permeability.

Further Explanation:

The difference between prokaryotic cells and Eukaryotic cells are listed in Table 1 attached below:

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Answer Details:

Grade: High School

Subjects: Biology

Topic: Structure of DNA

Keywords:

Eukaryotes, prokaryotes, chromosome, protein, cytoskeleton, membrane, histone, permeability, nucleus, condense, DNA, tetramers

Answer: Phagocytosis and pinocyotosis.

Explanation:

Endocytosis is a cellular process in which the substance are bought into the cell. It can be food, dissolved particles, damaged cell, et cetera.

It consists of pinocytosis and phagocytosis. The material that has to be ingested inside the cell is surrounded by the area of the cell membrane, which turns into a vesicle that contains the ingested material.

The Pinocytosis can be defined as cell drinking and phagocytosis can be defined as cell eating.

Final answer:

In a DNA molecule, purines are bonded with pyrimidines. Adenine (A) bonds with Thymine (T), and Guanine (G) bonds with Cytosine (C).

Explanation:

In a DNA molecule, purines are bonded with pyrimidines. This means that Adenine (A), a purine, will always bond with Thymine (T), a pyrimidine. Similarly, Guanine (G), another purine, will always bond with Cytosine (C), a pyrimidine. The base pairs (A-T and G-C) are held together by hydrogen bonding, creating the double-stranded helical structure of DNA.

The reason is because using a longer chromosome pair would help the learner to see the pattern in the spread out

Vines growing up a wall is an example of thigmotropism.

What is thigmotropism?

Why other options are incorrect?

Hence, vines shows movement it is an example of thigmotropism.

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fossil,nuclear,geothermal

The correct order of arrangement of energy resources from highest to lowest usage world wide is fossil fuels, nuclear energy and geothermal energy.

A fossil fuel is a energy source formed by the dead remains of living organims over millions of years through the natural process. It includes the coal, petroleum and the natural gas which are the highly used energy resources all over the world. Nuclear energy is the energy generated during the fission or fusion of nuclear reactions which is used to generate electricity. It is one of the low carbon power methods to generate electricity. Geothermal energy is the thermal energy or the heat energy stored in the earth which is used to produce electricity.

Thus, fossil fuels forms the first energy resource to be highly used worldwide.

Answer:

Most of the people in ancient China were peasants, that is, people who work on farms, both cultivating and raising cattle.

Explanation:

Ancient China was one of the oldest civilizations in the world with continuity until today, it has its origins in the Yellow River basin, where the first Xia, Shang and Zhou dynasties arose. The existence of written documents about 3,500 years ago has allowed the development in China of a very precise historiographic tradition, which offers a continuous narration from the first dynasties to the contemporary age. The Chinese culture, according to the myth, opens with the three original emperors: Fuxi, Shennong and finally the Yellow Emperor Huang, the latter considered the true creator of the culture. However, there are no historical records that demonstrate the real existence of these personalities, which according to the oral transmission from generation to generation, would have lived about 5000 to 6000 years ago.

The traditional Chinese storytelling is based on the so-called dynastic cycle, whereby historical events are explained as the result of successive dynasties of kings and emperors who go through alternate stages of boom and bust. This model of the dynastic cycle has been criticized by many authors1 for two fundamental reasons: First, for its simplicity, since the model adopts a recurring pattern according to which the first emperors are heroic and virtuous, while the latter are weak and corrupt This vision is undoubtedly influenced by the interpretation of the reigning dynasties themselves, which found in the degradation of the preceding dynasty a legitimation of their own rise to power. Second, the dynastic model has also been criticized for presenting an artificial nationalist vision, because what in an alternative interpretation could be seen as a succession of different states and civilizations in the same territory, appears as a mere alternation of government regimes in the unperturbed framework of a single national entity.

Answer: The correct answer is- Endocytosis.

Endocytosis can be described as a process in which cell engulfs large molecules from the environment by fusing them with its cell membrane (plasma membrane).

Cell membrane is a selectively permeable, hydrophobic membrane. Large polar molecules ( such as proteins and hormones) can not pass through it by means of simple diffusion.

Cell performs endocytosis for taking in such large molecules.

In this process, plasma membrane first forms a pocket around the target molecule ( such as protein) through invagination and once it completely surrounds the molecule, it is pinched off in the cytoplasm in a form of food vacuole ( phagosome in case of solid particles).

Thus, Endocytosis is the right answer.

Answer: The correct answer for the fill in the blank is- C) Neurotransmitters.

Neurotransmitters are the chemical messengers in the body that help in the transmission of signals from one neuron to another neuron across a gap called synapse ( such as neuromuscular junction).

These chemicals are released from synaptic vesicles that are present in the nerve endings and also from some glands (like adrenal gland and pituitary).

Example of neurotransmitters- Dopamine, acetylcholine, serotonin.

Aquifers are underground layers of rocks which contain water and serve as important sources of freshwater. They are located below the water table and in the saturated zone. If an aquifer becomes trapped between two impermeable layer (for example, one below and one above that overlies the aquifer), the pressure act on the aquifer and it can become a confined aquifer.

A confined aquifer is found between two impermeable layers.

Answer:

Option (B)

Explanation:

When the initially occurring aquatic organisms such as the blue-green algae started to use the solar energy in order to convert the water molecules and carbon dioxide and converting them into organic compounds as well as the molecular oxygen (O₂). This is known as the photosynthesis process that produced a significant amount of oxygen in the atmosphere. These oxygen molecules, as absorbs the UV radiations emitted from the sun, it breaks the oxygen molecules and forms a single atom of oxygen. These atoms then again is added to the molecular oxygen and forms the ozone (O₃) molecule.

This is how the ozone layer has formed about 2 billion years ago.

Thus, the ozone layer did not form during the Cenozoic era.

Hence, the correct answer is option (B).

This plant response by specialized cells is called gravitropism.

Gravitropism is the growth of a plant’s organ in response to gravity. In the root cap of plants, there are specialized cells known as statocytes that contains granules known as statoliths which stimulate the production of auxin; a hormone that is important for controlling plant growth. Plants have the ability to sense gravity with the aid of these specialized cells and plant roots grow downward into the soil while stems grow in the opposite direction.

Answer: Pollutant

Explanation:

Any undesired particle that is present in the environment is known as pollutant. These can be particulate matter or harmful gases that is present in the atmosphere.

These gases can be carbon dioxide( more than normal), carbon monoxide, sulfur dioxide, et cetera. Pollutants can be pollen grains, dirt and smoke which pollutes the environment.

Hence, undesired particles are known as pollutants.

The conclusion about the effectiveness of preventive surgeries can be drawn by gathering the data from the people who experience the surgery. The data would need the observations of the patients that had the surgery.

Preventive surgeries are those surgeries in which the tissues or organs or glands are removed from the body, even if they show no signs of cancer.

Preventive surgeries are done to prevent the development of cancer in the future. These surgeries are done on people who have a high risk of developing cancer.

Thus, data gathered from those who have undergone preventive surgery can be used to derive conclusions about their efficacy. The observations made by the surgical patients would be necessary for the data.

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Option A-

notable structure = fused rings

The correct answer is A

The scientist can determine that this nucleic acid is a DNA molecule, because it contains Thymine, which does not occure in the RNA molecule. The RNA molecule contains Adenine, Guanine and Cytosine just like the DNA, but unlike the DNA it contains Uracil, not Thymine.

Secondly, the scientist can say with certainty that this DNA molecule is surrounded by a nucleus based on the structure of the nucleic acid described. Only eukaryotic cells have ladder structure. The prokaryotic cells have circular DNA and do not have any organelles, like the nucleus. Therefore, from the ladder structure of the DNA the scientist can see that the cell has a nucleus.

The circulatory system is composed of blood vessels that take blood apart from and towards the heart. Arteries move blood aside from the heart and veins bring blood back to the heart. The circulatory system offers oxygen, nutrients, and hormones to cells, and eliminates decay products, like carbon dioxide.