hey guys im not begging for help here but ive been stuck for 10 minutes and my time is running out!

Answer:

transport protein

Explanation:

A transport protein completely spans the membrane, and allows certain molecules or ions to diffuse across the membrane. Channel proteins, gated channel proteins, and carrier proteins are three types of transport proteins that are involved in facilitated diffusion.

This scenario is described in the style of Charles Darwin's theory of evolution by natural selection.

Charles Darwin's theory of evolution is the idea that species change over time through the process of natural selection. This theory was first presented in Darwin's book "On the Origin of Species" in 1859. According to the theory, species evolve through the gradual accumulation of small variations in their characteristics, which give some individuals an advantage in survival and reproduction.

Over time, these advantageous variations can become more widespread in a population as individuals with these traits pass them on to their offspring. This process is known as natural selection. The theory of evolution by natural selection provides a scientific explanation for the diversity of life on Earth, and it is widely accepted by the scientific community as one of the most well-established scientific theories. It has had a profound impact on many areas of science, including biology, genetics, and ecology, and it continues to shape our understanding of the natural world.

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Answer: The Retina

Explanation:

The retina is the innermost layer of the eye, lining the back of the eyeball. It is composed of several layers of nerve cells and other specialized cells, including the photoreceptor cells, which are responsible for sensing light.

There are two types of photoreceptor cells in the retina: rods and cones. Rods are responsible for detecting light in low-light conditions and they are more sensitive to light than cones. Cones, on the other hand, are responsible for detecting light in bright conditions and are responsible for color vision. Both rods and cones detect light by absorbing photons and triggering neural impulses that travel to the brain via the optic nerve.

In summary, the retina, the innermost layer of the eye, contains the photoreceptor cells, rods and cones, which are sensitive to light and allow us to see.

Answer: D

Explanation: D. It can bond with itself in chains and rings.

Carbon has four valence electrons in its outermost shell, making it highly reactive and able to form a variety of chemical bonds. Carbon can bond with other elements such as hydrogen, oxygen, nitrogen and sulfur, as well as with itself, to form chains and rings. This ability to bond with other elements and with itself makes carbon a very versatile element and the basis of all organic compounds. Carbon can also bond with other carbon atoms in a variety of ways, such as single, double, and triple bonds, and can form a wide range of molecular structures including chains, branched chains and ring structures.

The element carbon has a valency of four so that it can simultaneously bond with four other atoms. It can bond with itself in chains and rings. The correct option is D.

The carbon atoms have a unique property of linking together in straight chains, branched chains or rings of different sizes which helps to form a large number of organic compounds. This property is called the catenation.

The chemical linkage into chains of atoms of the same element occurring only among the atoms of an element which has a valence of at least two and forms relatively strong bonds with itself. This property is predominant in carbon atoms, also exist in 'Si' and 'S' atoms.

A carbon-carbon bond is a covalent bond among the two carbon atoms. The most general form is the single bond. Every 'C' atom is covalently bonded at the four corners of the tetrahedron to four other 'C' atoms.

Thus the correct option is D.

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The top of the root, or the area nearest to the plant, is where the region matures. The root cap is the name for the root's tip. A plant cell will start in the cell division region and go to the elongation region.

A cell will enlarge in this zone before moving on to the zone of maturity. Acid secretion is the zone of maturation's final function. Acids are secreted by plants to start mineral exchange in the soil. The thin, immature roots hairs located in the zone of maturation secrete acids, or hydrogen ions, onto soil particles. They trade places with the soil's calcium, magnesium, and iron mineral ions.

Maturation is the development of becoming. The act of maturing is referred to as maturation. For example, a mature organism is one that has fully matured and developed for any function or state. Maturity is the stage at which growth or development is complete. Maturation is the process of differentiating in biology.

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Nurses' tasks involve Evaluating, observing, and talking to the patient, Record patient history and current health details and symptoms, Prepare the patient for examination and treatment. Drug Administration and Treatment.

Registered Nurses (RNs) often wear many hats every day to treat patients. A registered nurse's primary role is to ensure that each patient receives the direct and appropriate care they need, and they do this in a variety of ways.

RNs assess and identify patient needs and implement and oversee patient care planning and treatment. We also ensure that patient care, whether in a hospital or other facility, is conducted in accordance with the employer's policies and standards.

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The nutrients digested are absorbed into the circulation via the lining of the small intestine. The nutrients are delivered to the rest of the body through the blood.

The digestive system consists of the gastrointestinal tract (also known as the GI tract or digestive tract), as well as the liver, pancreas, and gallbladder. The GI tract is a collection of hollow organs connected by a long, twisting tube that runs from the mouth to the anus.

The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The digestive system's solid organs are the liver, pancreas, and gallbladder.

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Babies get used to repeating exposure to visual influences, but their interest wanes and they look away more quickly. This decrease in the baby's responsiveness is called Speech delay.

Speech delay is a delay in a child's ability to convey something or speak. In this condition, the child is unable to convey his thoughts properly, so his words are difficult to understand. Children with speech delays are able to say words but have difficulty connecting them.

Speech delays can be caused by impaired physical growth, ear infections, or problems with the mouth or hearing. One of the causes of speech delay in children is screen time or being exposed to too long and frequent use of gadget screens.

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The ciliated epithelial cell is built around the nose, lungs, and breathing tubes.

A respiratory system is defined as one of the major systems of the body that is made up of organs that helps in the removal of carbondioxide and in take of oxygen for the use of body cells.

The organs of the respiratory system include the following:

The ciliated epithelial cells is a natural in-built defensive mechanism that helps in the removal of dirts that are trapped during breathing.

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3 negative impacts of rainforest removal:

The loss of trees and other vegetation can cause climate change, desertification, and increased greenhouse gases in the atmosphere.

A rainforest is an area of tall, mostly evergreen trees and a high amount of rainfall.

Rainforests are Earth’s oldest living ecosystems, with some surviving in their present form for at least 70 million years. They are incredibly diverse and complex, home to more than half of the world’s plant and animal species—even though they cover just 6% of Earth’s surface. This makes rainforests astoundingly dense with flora and fauna; a 10-square-kilometer (4-square-mile) patch can contain as many as 1,500 flowering plants, 750 species of trees, 400 species of birds and 150 species of butterflies.

Rainforests thrive on every continent except Antarctica. The largest rainforests on Earth surround the Amazon River in South America and the Congo River in Africa. The tropical islands of Southeast Asia and parts of Australia support dense rainforest habitats. Even the cool evergreen forests of North America’s Pacific Northwest and Northern Europe are a type of rainforest.

Rainforests’ rich biodiversity is incredibly important to our well-being and the well-being of our planet. Rainforests help regulate our climate and provide us with everyday products.

Unsustainable industrial and agricultural development, however, has severely degraded the health of the world’s rainforests. Citizens, governments, intergovernmental organizations, and conservation groups are working together to protect these invaluable but fragile ecosystems.

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Answer:

experimental data

Explanation:

Discovery science aims to find new patterns and correlations, and form hypotheses through the analysis of large-scale experimental data.

Fresh snow has a higher albedo of about 85%, while old snow has a lower albedo of about 50%. Therefore, fresh snow will reflect more of the sun's radiation than old snow.

Albedo is a measure of the reflectivity of a surface, it is the ratio of the amount of light reflected by a surface to the amount of light incident on it. High albedo surfaces like fresh snow reflect more light and heat than low albedo surfaces like old snow. Fresh snow is a good reflector of sunlight because it has a high concentration of ice crystals, which scatter light in all directions.

Old snow has a lower albedo because it becomes more compacted over time, which reduces the number of ice crystals present, and because it may be dirty or covered with dust, which absorbs more light and heat. Additionally, old snow may have a layer of meltwater on top, which also has a lower albedo than the snow.

In conclusion, fresh snow has a higher albedo than old snow, and it reflects more of the sun's radiation back into space. This is why fresh snow appears brighter and whiter than old snow.

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The process through which plants lose water through stomata is called transpiration.

Option c is correct.

Plants lose water vapour through their stomata through a process called transpiration. When the weather is extremely hot, the plant loses water vapour, which cools it down. Water from the stem and roots flows upward or is "drawn" into the leaves.

When stomata are opened to allow carbon dioxide to enter for photosynthesis, water in the mesophyll tissue of leaves can also evaporate if the air is drier outside because of things like high temperatures.

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Water expands upon freezing. It then serves as a wedge. It gradually enlarges the fissures and splits the rock. By carrying away the minute rock particles lost in the split, liquid water conducts the act of erosion when ice melts.

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