Which best describes the cell theory? Edg2020

Answer: Coacervates are similar to living organisms as they are capable of absorbing nutrition and also can grow under proper living conditions.

Explanation: Coacervates are regarded as the foundation of early life in Oparine Haldane theory's (abiogenesis) view. In order to manufacture organic compounds from an ocean of food, scientists think that they developed chemically.

They consist of a grouping of colloidal droplets held together by hydrophobic force.

Both live cells and non-living cells share certain commonalities with them. In a suitable physical and chemical environment, they can develop and absorb nutrients. Although they are incapable of reproduction, coacervates can maintain homeostasis just like living cells. A live organism's ability to reproduce is one of its most crucial characteristics. Therefore, we are unable to classify them as living entities.

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Answer:

D. By the making of glucose through photosynthesis

Explanation:

Photosynthesis is a chemical reaction that results in glucose. One of the reactants is CO2. So, the plants take in CO2, water, and sunlight. This produces oxygen and glucose. This is part of the carbon cycle and is the way that CO2 becomes usable for consumers.

Answer:

I KNOW I KNOW I KNOW

Explanation:

kinetic energy

The Earth's elliptical orbit does not cause the seasons.

It is important to note that the causes of the seasons are not related to astrology, but rather to the tilt of the Earth's axis and its revolution around the sun. The Earth's axis is tilted at an angle of approximately 23.5 degrees relative to its orbit around the sun.

This means that as the Earth orbits the sun, different parts of the planet receive different amounts of sunlight depending on their position relative to the sun.

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The characteristic that will determine whether the fossil organism which is an animal is a sponge or a cnidarian is: (4) multiple tissues.

Fossils are the dead and decaying remains of the plants or animals that were buried deep down on the earth millions oy years ago. The fossil can be in the form of some bone, exoskeleton, hair, petrified wood, traces of DNA, etc.

Cnidarians are the animals that belong to the phylum Cnidaria. The examples of cnidarians include corals, hydras, jellyfish, etc. These organisms have tissue level of body organization and therefore it becomes a distinguishing characteristic that differentiated them from the sponges.

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Answer:

The tRNA is used when cells build proteins because it brings amino acids to the ribosomes on mRNA. this causes the acids to bond with the ribosomes, forming a protein.

Answer:

autonomic nervous system

Explanation:

its called Photophobia

Answer:

it is c the answer is C ok thanks

The correct answer is D) rupture of the cell, releasing cytoplasmic contents.

During apoptosis, a series of programmed events occur in a cell leading to its death. These events include flipping of phosphatidylserine to the outer leaflet of the plasma membrane, DNase fragmentation of DNA, bleb formation, and formation of apoptotic bodies. However, rupture of the cell and the release of cytoplasmic contents is not a characteristic feature of apoptosis, instead, it is associated with necrosis, which is an uncontrolled death of cells. Apoptotic cells are usually engulfed by nearby cells or phagocytes without causing inflammation.

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Answer:

Codominance

Explanation:

Answer:  Codominance.

Explanation: In this condition, two forms of a trait or alleles are both present in the phenotype.

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The primary functions of whales include feeding, reproduction, communication, and migration.

Whales are primarily filter feeders or predators, depending on the species.

Filter-feeding whales, such as baleen whales, have baleen plates in their mouths that allow them to filter out small prey, such as krill or small fish, from large volumes of water.

Predatory whales, such as toothed whales, hunt and feed on various marine organisms, including fish, squid, and marine mammals.

Reproduction is another important function for whales. Most whale species have a gestation period of several months, with females giving birth to a single calf.

The calves are nursed with milk from their mothers and rely on their care for a period of time until they become independent.

Communication is vital for whales, as they rely on vocalizations to communicate with other members of their pod.

Whales produce a variety of sounds, including songs, clicks, and whistles, which serve purposes such as mating, social interactions, and navigation.

Migration is a common behavior observed in many whale species. Whales undertake long-distance migrations, often covering thousands of kilometers, to reach feeding grounds in nutrient-rich waters or to reproduce in specific breeding areas.

These migrations are driven by seasonal changes in food availability and environmental conditions.

In summary, the primary functions of whales encompass feeding, reproduction, communication, and migration, all of which are essential for their survival and successful adaptation to their marine environments.

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Answer:

The peripheral chemoreceptors for oxygen (in carotid and aortic bodies) increase their rate of discharge primarily in response to A decrease in dissolved oxygen in cerebral spinal fluid

Explanation:

When the partial pressure of oxygen changes the peripheral chemoreceptors get activated which then causes respiratory drive changes to maintain normal levels of partial pressure. These receptors sense changes in the level of arterial blood oxygen and starts reflexes which play important role in maintaining homeostasis in hypoxemia. These receptors after sensing changes in the blood oxygen in seconds at the start of hypoxia and immediately begins cardiorespiratory modifications. For example, high blood pressure and high breathing rate, play a key role in the maintenance of oxygen homeostasis. When peripheral chemoreceptors are stimulated, the heart reaction is the consequence of main and secondary reflex processes. The primary reflex stimulation's main result is to activate the medullary vagal centre, which lowers the heart rate. The consequences of secondary reflexes are mediated via the respiratory system.

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Answer:

The tricuspid valve is one of the four heart valves in the human heart, and it is located between the right atrium and the right ventricle. The valve has three leaflets or cusps that allow blood to flow from the right atrium into the right ventricle during the cardiac cycle.

The main role of the tricuspid valve is to prevent the backflow of blood from the right ventricle into the right atrium during ventricular systole. It accomplishes this by opening during ventricular diastole (when the ventricle is relaxed and filling with blood) to allow blood to flow into the ventricle, and then closing during ventricular systole (when the ventricle contracts to pump blood to the lungs) to prevent the backflow of blood.

Overall, the tricuspid valve plays a crucial role in ensuring proper blood flow through the heart and preventing the mixing of oxygenated and deoxygenated blood.

Explanation:

Numerous natural formations display the cardioid shape, which has biological relevance, which is determined by the equation r = 6 - 4cos().

The form of some animal hearts, including those of some cephalopods and sea gastropods, is one striking example. These species' cardioid-shaped hearts have developed to help them efficiently pump blood throughout their bodies. Their physiological demands are supported by the high blood flow that is maintained by the cardioid shape's narrowing apex. Additionally, certain flower species, such as several cyclamen species, have a cardioid-like arrangement of their petals. By offering an ideal landing site, its design helps to draw pollinators. The cardioid shape thus exhibits functional modifications for circulation and reproduction in biology.

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--The complete Question is, What is the biological significance of the cardioid shape in nature? Explain any patterns or phenomena observed in biological structures that resemble or approximate a cardioid shape. How does the equation for the cardioid, given as r = 6 - 4cos(θ), relate to these biological structures? Discuss any potential implications of the equation for understanding the functions or adaptations of organisms that exhibit cardioid-like structures. Provide examples of organisms or biological systems where the cardioid shape is prominent and explain how this shape benefits their survival, reproduction, or other biological processes. --

According to island biogeography theory, the highest numbers of species would be found on islands that are large and close to the mainland.

Island biogeography theory is a theory that explains the relationship between island size and distance from the mainland to the number of species found on an island. It was developed by Robert MacArthur and Edward O. Wilson in the 1960s. The theory suggests that larger islands have higher species richness than smaller islands, and islands closer to the mainland also have higher species richness than islands that are farther away.

The explanation behind the theory is that larger islands have more habitat diversity, which can support more species. Also, islands closer to the mainland are more likely to receive immigrant species from the mainland and have lower extinction rates than those that are farther away.Therefore, according to the island biogeography theory, the highest numbers of species would be found on islands that are large and close to the mainland.

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Explanation:

Generation time is the time taken for a cell population to double in numbers and thus equivalent to the average length of the cell cycle.

Answer:

the magnifying glass showed scientists that plants were made up of cells

✅ the microscope enabled scientists to discover single-celled organisms

the microscope showed that cells of plants and animals have different structures

the telescope enabled scientists to see objects they could not view before

Answer:

Physiologist: monitor heart rate; Anatomist: analyze the structures within the heart chambers

Explanation:

Genetically engineered crops produce greater yields, have a longer shelf life, are resistant to illnesses and pests, and even style better.

A genetically modified organism (GMO) is an organism in which genetic material is altered with the aid of genetic engineering technology. GMO may also sound futuristic; however, one is already surrounded by means of meals derived from GMO products, as they have been present in one's food furnish for decades.

GMO vegetation advocates declare that there is enough proof that GMOs are necessary for promotion sustainable agriculture because it can minimize agriculture's environmental footprint with the aid of decreasing the use of pesticides, saving fossil fuels, reducing CO2 emissions and conserving soil and moisture [21].

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Answer:

pinocytosis does not deliver the materials to lysosome....

Answer: The reason behind presence of rows of teeth despite being a filter feeder in whale sharks is because they are vestigial structures.

Explanation:

The vestigial structures refer to the compositions, which exhibit no ostensible activity and seems to be the leftover components from a past ancestor. Some of the examples of vestigial parts are the pelvic bone of a snake, the human appendix, and the wings of flightless birds.

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Answer:

When you strike a match, it moves through the air until it rubs against a surface. The rubbing produces the heat required to light the match. This is a transformation from mechanical energy to thermal (heat) energy.

Explanation:

The type of energy transformation takes place when a reaction produces a spark of light is transformation from mechanical energy to thermal (heat) energy.

This is called the Law of Conservation of Energy. In the case of a hydroelectric plant, for example, water flows in the river at a certain speed and falls from a certain height, turning like turbines, which transform mechanical energy into electrical energy.

In this case,  type of energy transformation takes place when a reaction produces a spark of light is transformation from mechanical energy to thermal (heat) energy.

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Habitat destruction and deforestation for coffee plantations are currently the biggest threats to the wet tropical forests of Central America.

So the biggest threat to wet tropical forests is deforestation. It is the destruction of forests for plantations and especially agriculture for feeding animals and keeping cows and resulting habitat destruction that is the biggest threat. Deforestation is a particular concern in tropical rainforests, as these forests are home to the world's biodiversity. Huge areas of diverse tropical forests are lost or degraded every year with dramatic consequences for biodiversity. Deforestation and fragmentation, overexploitation, invasive species and climate change are the main drivers of tropical forest biodiversity loss. Tropical forests are one of the most diverse habitats on Earth (Whitmore 1998). Tropical forests have suffered extraordinary changes over the past century as they have been degraded or destroyed by human activities.

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Answer:

endoplasmic reticulum

Answer:

Mitochondria

Explanation:

This looks nothing like the Golgi complex , Endoplasmic Reticulum, or the Nucleus. For whatever reason, it is not letting me post pictures, but Golgi complex and Endoplasmic Reticulum looks like loose spaghetti and the Nucleus looks like a ball. The Mitochondria has a bean shape with an inside like this.