Quais adaptações evolutivas o grupo das Angiospermas possui em relação aos outros grupos de plantas? Como essas adaptações contribuíram para o sucesso reprodutivo desses seres vivos no ambiente terrestre?


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If you place a feather on the surface of a bowl of water, the feather remains suspended on the surface due to the B) surface tension of the water.

What is surface tension?

Surface tension is the property of the surface of a liquid that enables it to resist an external force, for example, a weight in contact with the surface. The molecules at the surface of a liquid experience a net inward force due to the unbalanced intermolecular forces at the surface.

Surface tension, measured in newtons per meter (or dynes per cm), is the force perpendicular to a line on the surface that acts on the opposite side of the line.

The feather stays on the surface of the water because of the high surface tension. Since the feather's density is less than the water's, the feather cannot sink. Because the feather does not penetrate the surface of the water, it rests on it. This is the reason why the feather remains suspended on the surface of the water.

Thus, the answer is B) Surface tension of the water.

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Answer:

Electrons are much smaller in mass

Explanation:

Although similar in mass, protons are positively charged, while neutrons have no charge. Therefore, the number of neutrons in an atom contributes significantly to its mass, but not to its charge. Electrons are much smaller in mass than protons, weighing only 9.11 × 10−28 grams, or about 1/1800 of an atomic mass unit.

Answer:

An actual computer virus is a malicious software, often known as malware, that can harm a computer and its users.

Virus hoaxes are false or misleading information about viruses that circulate through various communication channels.

They can be more dangerous than actual viruses due to their ability to spread quickly, cause panic, and undermine effective public health measures.

Virus hoaxes are deceptive messages or claims that often exaggerate the severity or impact of a particular virus. They can be spread through social media, email chains, or word of mouth. These hoaxes may include misinformation about symptoms, transmission methods, or false remedies, leading people to take ineffective or even harmful actions.

What makes virus hoaxes particularly dangerous is their potential to create panic and misinformation at a rapid pace. The viral nature of social media and other communication platforms allows these hoaxes to reach a wide audience within a short period. As a result, people may make decisions based on false information, such as avoiding necessary medical treatment, taking unnecessary precautions, or spreading fear and misinformation to others.

Moreover, virus hoaxes can undermine public health efforts by diverting attention and resources from legitimate preventive measures. They can erode trust in healthcare authorities and disrupt the dissemination of accurate information, making it harder for individuals to make informed decisions and follow recommended guidelines.

This can have severe consequences, especially during outbreaks or pandemics, where timely and accurate information is crucial for public safety. Therefore, it is essential to verify the credibility of information and rely on trusted sources to mitigate the risks associated with virus hoaxes.

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Answer:

D. Electrical - electromagnetic and thermal​

Explanation:

Energy is the capacity to do work, and it exists in various forms. Some of its forms are: nuclear energy, solar energy, electrical energy, mechanical energy, sound energy, light energy, heat/ thermal energy etc. These forms can be transformed from one to another. Example is the conversion of electrical energy into light energy and heat energy by an electrical Tungsten-bulb.

A space heater is an electrical device used for generation of majorly heat energy, thus it is powered by electrical energy. Therefore it transforms electrical energy into electromagnetic and thermal.

In this case, Fe2+ is acting as a co-repressor. Your answer is option (b) co-repressor.

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Answer:1243

Explanation:

Answer:

4123

Explanation:

I'm working on the same except mine says level two

The top 20 prescription pharmaceuticals plants sold in the U.s. now are among the 40% of drugs found behind the pharmacy's counter inside the Western hemisphere that are made from plants that have been used by humans for ages.

Since the discovery of these pharmaceuticals slowed down, guy molecules have not made up the difference. The majority of medicines created in the previous century were from naturally occurring compounds (natural processes) found in sources like plants, bacteria, and fungi.

As the little folks work on manufacturing and plant-based pharmaceuticals, Big Pharma watches from a distance. Big Pharma favors traditional plants over living plants for manufacturing.

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Explanation:

protein - provides structural support for cells

nucleic acid - speed up reaction

carbohydrate- provides short term energy

lipid - speed up reaction

A branch of biology known as "Plant Biology and Plant Biotechnology" combines the science of plant life with the use of cutting-edge methods.

It is the analysis of chemical reactions that take place inside and around living things. Biochemical processes provide the complexity of life by regulating the flow of information through biochemical communication and the transfer of chemical energy throughout metabolism.

The essential concepts of plant biology, including photosynthetic, primary and secondary respiration, the role of auxins, plant dna, and plant biotechnology, are covered in the book.                                                        To know more about Plant Biochemistry visit:

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Secondary active transport is a type of cell transport that involves the movement of molecules across a cell membrane using energy from a primary active transport process. Unlike direct active transport, which uses energy directly from ATP, secondary active transport uses the energy from the movement of ions across a gradient.

Secondary active transport is classified into two types, cotransport and countertransport. In cotransport, also known as symport, two or more molecules are transported in the same direction across a membrane. For example, the sodium-potassium pump uses the energy from the movement of sodium ions to pump potassium ions in the same direction.

Counter transport, also known as antiport, involves the movement of molecules in opposite directions across a membrane. For example, the glucose-sodium cotransporter in the small intestine uses the energy from the movement of sodium ions to transport glucose into the cell.

Secondary active transport is important for a variety of cellular processes, including the absorption of nutrients, the regulation of ion concentrations, and the maintenance of osmotic balance. It also plays a crucial role in the functioning of nerve cells, where it is used to transport neurotransmitters across the synapse.

In conclusion, secondary active transport is a type of cell transport that involves the movement of molecules across a cell membrane using energy from a primary active transport process. It is classified into two types, cotransport and countertransport. Secondary active transport is important for various cellular processes, including nutrient absorption, ion concentrations, and osmotic balance. It also plays a crucial role in the functioning of nerve cells, where it is used to transport neurotransmitters across the synapse.

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The medium-sized African and Asian antelopes known as gazelles have done just that.

Even while it's unlikely that any of the roughly 19 species of gazelles could outrun a cheetah in a race, some of them have gotten very proficient at persuading the strong cat not to attempt and take them down.

Even though they tend to be quiet and peaceful, gazelles are skilled communicators. Gazelles have a variety of ways to communicate using only their bodies, from dodging a chase to attracting a partner.

Stotting is among the more intriguing instances of gazelle body language. Stotting, sometimes known as pronking, is the act of gazelles repeatedly leaping into the air while holding their backs arched and all four legs erect.

Therefore, The medium-sized African and Asian antelopes known as gazelles have done just that.

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Answer:

Explanation:

Explanation:

measure 60° and construct a circle,draw arcs around it and join them

C. Natural disaster is a density-independent factor affecting population growth. Density-independent factors are those that affect the population irrespective of the population size or density.

Natural disasters such as floods, hurricanes, earthquakes, and wildfires can reduce population sizes regardless of how many individuals were present in the population before the disaster occurred. The other factors listed - competition, disease, and predation - are all density-dependent factors, which means that they become more significant as the population size or density increases.

Competition is an example of a density-dependent factor, as it increases as the population size increases. As more individuals compete for limited resources such as food, water, and shelter, the rate of population growth slows down.

Disease is another density-dependent factor, as it spreads more easily in crowded populations where individuals are in close contact with one another.

On the other hand, natural disasters such as floods, hurricanes, and wildfires are examples of density-independent factors. These events can affect a population regardless of its size, and they can cause significant decreases in population size.

Predation can be both a density-dependent and density-independent factor. In some cases, predation can increase as the population size increases, making it a density-dependent factor. However, predators can also reduce the population size through random hunting or selective hunting of weaker individuals, making it a density-independent factor.

Understanding the factors that affect population growth is important for predicting and managing population sizes in both natural and human-made ecosystems.

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Answer:

A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses

Explanation:

here is!!

Answer:

The action or process of mutating.

The cell organelles that Ricky is likely to associate with the parts of the egg would be plasma membrane, cytoplasm, and nucleus respectively.

Cell organelles refer to the component parts of a cell with specific functions.

From the image, the fried egg of Ricky looks like the structure of a typical animal cell.

The outermost part of an animal cell that delimits the entire structure is the plasma membrane.

The inner portion of the cell consisting of the liquid and other components is referred to as the cytoplasm.

Within the cytoplasm, a spherical, more or less centralized organelle controls the activities of the cell. It is known as the nucleus.

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The fried egg reminds the general appearance of a eukaryotic cell. The structures that can be recognized are the nucleus, the cytoplasm, and the cell membrane.

Among the organelles, we can mention

It is not rare to compare an egg with a cell since its general appearance reminds us of the cell's general structure.

In the attached files you will find an image compareing both structures.

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The atoms with the largest atomic radius are:

(a) Ba

(b) S

(c) Cu

(d) H-

(e) Na

(a) Ba has a larger atomic radius than Mg because Ba has more electron shells than Mg, even though they are in the same period.

(b) S has a larger atomic radius than S2- because S2- has gained two electrons, which increases the effective nuclear charge and decreases the atomic radius.

(c) Cu has a larger atomic radius than Cu+2 because Cu+2 has lost an electron, which decreases the shielding effect of the electrons and increases the effective nuclear charge, pulling the remaining electrons closer to the nucleus.

(d) H- has a larger atomic radius than He because H- has one more electron than He, and the additional electron adds another energy level to the atom, increasing its size.

(e) Na has a larger atomic radius than Cl because Na is a metal and Cl is a non-metal, and metals tend to have larger atomic radii than non-metals.

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The price and availability of chemical fertilizers are indeed strongly influenced by the price of oil. The correct answer is A) .

Chemical fertilizers are typically produced from petroleum or natural gas, which are hydrocarbon-based resources. The production of fertilizers involves energy-intensive processes, such as extraction, refining, and manufacturing. As a result, the price of oil on the world market has a significant impact on the cost of producing chemical fertilizers. Fluctuations in oil prices can directly affect the cost of raw materials and energy required for fertilizer production. When oil prices are high, the cost of manufacturing fertilizers increases, leading to higher prices for farmers and consumers. Conversely, lower oil prices can result in reduced fertilizer costs. Therefore the correct answer is A).

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could u give brainly plz

5. respiration

8. transport

9 metabolism

10. ingestion

down

1. homeostasis

2.digestion

3.organism

4. excretion

6. nutrition

7. biology

Answer:

The water will move out of the cell

Explanation:

This is due to osmosis. We can infer that there is some solute outside that is making the water outside into 75%. As from rules of osmosis, higher concentrations of water will move to lower concentrations of water.  So, since the cell has a higher water percentage, water will move from the cell to the outside environment to maintain homeostasis.

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Answer:

sequence of nucleotides in DNA or RNA

Answer:

Gamma rays are used in medicine (radiotherapy), industry (sterilization and disinfection) and the nuclear industry. Remember it is very important to shield against gamma rays since they can cause diseases to skin or blood, eye disorders and even cancers.

Explanation:

Answer:

Explanation:

WHAT ON EARTH IS THE QUESTION

Answer:

The answer is 50%

Explanation:

   f  F

F  fF . FF

F fF . FF

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fungi are more likely than bacteria to contaminate bandages because they are aerobic and can tolerate low-moisture conditions. The correct answer is (A) (Aerobics can tolerate low-moisture conditions).

Eukaryotic organisms make up the microorganisms known as fungi, which include yeasts, molds, and mushrooms. These organic entities are arranged under realm parasites. Kingdom fungi organisms are everywhere and have a cell wall. They fall under the category of living organisms known as heterotrophs.

Single-celled or extremely complex multicellular fungi exist. They can be found in almost any habitat, but the majority of them live on land, mostly in soil or plant matter, rather than in fresh or salt water.

Any of the approximately 144,000 known species of organisms in the kingdom of Fungi, which includes yeasts, rusts, smuts, mildews, molds, and mushrooms, is a fungus (plural fungi). There are also many organisms that look like fungi, like slime molds and oomycetes (water molds), which are not in the kingdom of fungi but are still commonly referred to as fungi.

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Answer: The oxygen is combined with hydrogen to form water

Explanation:

When oxygen is metabolized within the mitochondria, it is used in a process called oxidative phosphorylation to produce energy in the form of ATP.

This process involves the transfer of electrons from molecules like glucose to oxygen, which ultimately results in the creation of a proton gradient that is used to power the ATP synthase enzyme. As a result, the oxygen molecules are converted into water molecules, which are then released as waste products.

Additionally, some of the oxygen molecules may react with other molecules within the mitochondria, such as reactive oxygen species (ROS) that are generated during the process of oxidative phosphorylation. These ROS can cause damage to the mitochondria and other cellular structures if they are not properly neutralized by antioxidants.

Overall, the oxygen that is metabolized within the mitochondria plays a crucial role in the production of energy for the cell, but it must be carefully managed to avoid any negative effects on cellular function.

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Answer:

Advantage: Light microscopes have high magnification. Electron microscopes are helpful in viewing surface details of a specimen. Disadvantage: Light microscopes can be used only in the presence of light and have lower resolution. Electron microscopes can be used only for viewing ultra-thin specimens.

Neurons in human cortical area 3b that have relatively large receptive fields generally correspond to regions of the body surface associated with the fine sensory discrimination.

Neurons in human cortical area 3b that have relatively large receptive fields generally correspond to regions of the body surface associated with the fine sensory discrimination. Neurons in this region are sensitive to stimulus parameters such as texture, shape, and size, and they tend to exhibit a high degree of spatial acuity, which means they can distinguish between closely spaced stimuli. Afferent fibers that originate from the skin and deep tissues of the body are responsible for stimulating neurons in the 3b region. The extent and shape of these receptive fields are correlated with the size, shape, and texture of the body part being stimulated. In other words, receptive fields that cover larger areas of the body surface tend to correspond to body regions that are associated with the fine sensory discrimination.

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