What group of plants would flowering plants belong to?
A. Bryophytes
B. Seedless vascular plants
C. Gymnosperms
D. Angiosperms

Answer:

True!

Explanation:

Sometimes an entire ocean closes as tectonic plates converge, causing blocks of thick continental crust to collide. A collision mountain range forms as the crust is compressed, crumpled, and thickened even more. The effect is like a swimmer putting a beach ball under his or her belly—the swimmer will rise up considerably out of the water. A convergent boundary (also known as a destructive boundary) is an area on Earth where two or more lithospheric plates collide. One plate eventually slides beneath the other, a process known as subduction.

Answer:

A,B,AB blood types are possible

The bound ribosomes that are present on its surface give it a rough appearance. Protein synthesis and storage occur in rough ER. On the other side, a smooth ER aids in the retention of proteins.

How are proteins structured?

Amino acids, which are divided into several categories, make up proteins. Certain sequences of these essential amino acids exist, and the DNA regulates their configurations. As our bodies are unable to produce these necessary amino acids on their own, we need to consume a lot of protein-rich foods on a daily basis to maintain a steady rate of metabolism.

What amino acids make up a protein?

the amino acids. The monomer that constitute protein are amino acids. A protein is composed of one or so more polypeptides, which are individual linear amino acids chains. (We'll learn more about the origin of this name a little farther down the page.) Proteins can contain a variety of amino acids that are 20202020 in type.

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Answer:

humidity

Explanation:

Answer:

The greatest advantage of CR is its rapid and efficient expansion of cell cultures from patient tissue samples. This allows researchers to screen tumors for sensitivity to anticancer drugs or immunotherapies quickly enough for the information to be of clinical use.

Explanation:

Answer:

Basically, the peppered moths had to adapt due to the color of their surroundings changing. This was influenced by an abiotic factor because the trees changed color due to the soot and ash produced during the industrial revolution. This would change the color of the moths because if they were lighter living in a habitat with dark surroundings or vise versa, they would be more likely to be eaten/killed by predators and wouldn't be able to survive and reproduce to keep the species alive.

Explanation:

The genetic engineering differ from selective breeding is only genetic engineering can result in an organism with traits from two widely different species.

Selective breeding uses natural biological means to alter genetics--example is using a pollen from one strain to fertilize another strain and so "cross" the gene pools.

Genetic engineering artificially goes into the chromosomes to edit them--an unnatural process. Example--a cold water fish gene is put into a crop so that it won't freeze in the winter. This would not naturally occur.

Molecular biology and genetic engineering are at the basis of biotechnologies, in particular those based on recombinant DNA and genetic transformations.

It consists of introducing a gene into a DNA ring (plasmid). This plasmid is then transferred to bacteria. For example, if a human gene is introduced into a bacterium, it will produce the corresponding human protein, which is then isolated from bacteria, purified and ultimately used as a substitute drug.

Therefore, The genetic engineering differ from selective breeding is only genetic engineering can result in an organism with traits from two widely different species.

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Of these terms, the one which is a contributing mechanism in the natural selection is mutation, since this is an alteration of a specific fragment of DNA that can produce an organism to have in advantage or in disvantage with regard to other species.

The explanation that best explains this phenomenon is: the roots grow towards the force of gravity and the stem goes away

The parts of a plant can be divided into shoot and roots. The root of the plant is the part that grows below the ground surface in order to anchor the plant.

When a seed germinates, the root part of that seed grows towards gravity i.e exhibits geotropism while the shoot part grows away from gravity i.e. upwards.

Hence, if a seed is planted upside down, it will still grow into an erect mature plant because the root will grow downwards towards gravity (positive geotropism) while the stem grows upward away from gravity (negative geotropism).

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Answer:

Explanation:

Erosion i think if its wrong im so sorry!:)

Without the functions and benefits provided by soil, human life would not be conceivable. By anchoring roots and storing nutrients, it creates an environment for plants (including food crops and timber wood). Thus, option D is correct.

While soil erosion brought on by human activities has poured chemicals and toxins into water sources, this is not the case with natural soil erosion.

A 1950s study found that natural soil erosion contributes vital nutrients that support the flourishing of aquatic species. To flourish in. Our water is filtered and cleaned, and it also aids in preventing natural disasters like flooding.

Food production decreases, water supplies dry up, and communities are pushed to relocate to more hospitable areas as a result of land degradation and the expansion of deserts in some areas.

Therefore, erosion has a positive effect on soil depletion.

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Answer:

Las hormonas activan vías de señalización celular, con lo cual regulando el crecimiento, metabolismo y reproducción del organismo

Explanation:

Las hormonas son moléculas mensajeras que circulan a través del torrente sanguíneo para llevar a cabo diferentes funciones. Estas moléculas se unen a receptores específicos presentes en la superficie de las células con la finalidad de controlar diferentes aspectos de su funcionamiento. Las hormonas son principalmente producidas por glándulas endocrinas pero también pueden ser secretadas por células intersticiales y epiteliales.

Las hormonas se dividen cinco clases principales:  

a- pequeños neurotransmisores implicados en el funcionamiento del sistema nervioso (gonadotropina, somatostatina)

b- derivados de aminoácidos que también tienen funciones neuromotoras (dopamina, catecolamina)

c- proteínicas asociadas a funciones metabólicas y del desarrollo (insulina)

d- hormonas esteroideas derivadas de colesterol (estrógenos) que regulan el desarrollo de las características reproductivas y metabólicas e inmunológicas

e- hormonas derivadas de vitaminas liposolubles A y D (retinoides) vinculados a mecanismos que previenen el envejecimiento celular

After a major event at 120 generations, an allele was lost from the population. In terms of diversity, this left the population with less genetic diversity.

An allele is a variant form of a gene that appears as a result of mutation. An allele is one of the possible alternative forms of a gene that can be present at a given locus (position) on a chromosome. A gene locus refers to a specific location on a chromosome where a particular gene is found.

Genetic diversity refers to the variety of genes and alleles that exist within a population. When a population has high genetic diversity, it implies that it has a wide range of genetic variability, making it easier for the population to adapt to environmental changes. It can also protect the population from disease or predation, increase its chances of survival and persistence, and give it greater resilience against genetic drift, inbreeding, and other factors that can reduce genetic diversity.

Therefore, losing an allele from a population results in a decrease in genetic diversity, which is a disadvantage for the population.

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Answer:

I guess phenotypes are not affected by mutations since mutations affect the gene structure of organisms while phenotypic characteristics are acquired through ones life time therefore no relationship between the two

Answer:

Photosynthesis is:

Water + Carbon dioxide —sunlight—> Oxygen + Glucose
Cellular Respiration is: Oxygen + Glucose ——> Water + Carbon dioxide

Explanation:

The main differences between hypothesis and theory are based on the amount of scientific evidence and the ability to make predictions about a given outcome.

A scientific theory is a well-sustained body of empirical evidence that allows us to make predictions associated with new observations of the real world.

Conversely, a hypothesis is a given explanation that must be tested in order to be confirmed (or rejected) by using the steps of the scientific method.

In conclusion, The main differences between hypothesis and theory are based on the amount of scientific evidence and the ability to make predictions about a given outcome.

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Confusion is the inability to think as clearly or quickly as you normally do. You may feel disoriented and have difficulty paying attention, remembering, and making decisions. The major areas of the brain have one or more specific functions.

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The first law of energy can be applied in food processing whereby foods are converted from one form to another.

Food processing is the process by which food is converted from its natural state obtained from plants to a more edible and palatable state for consumption by humans.

The first law of energy states that energy cannot be created nor destroyed but can be converted to other forms.

Therefore, the first law of energy can be applied in food processing whereby foods are converted from one form to another.

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Answer:

Sensory transduction is the process of converting that sensory signal to an electrical signal in the sensory neuron. The process of reception is dependent on the stimuli itself, the type of receptor, receptor specificity, and the receptive field, which can vary depending on the receptor type.

Explanation:

Answer:

A. Brown (BB) x White (bb)

Explanation:

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Cytochrome a and Cytochrome b are the two components of the electron transport pathway that are associated with Complex IV. The correct option is Cytochrome b and Cytochrome a.

What is the electron transport pathway?

The electron transport chain is a set of redox reactions that convert NADH and FADH2 into ATP. This occurs in the mitochondria and is a vital element of cellular respiration. Electrons are transferred from NADH and FADH2 to a series of electron acceptors in the electron transport chain through a chain of redox reactions. Energy is produced during this process, which is used to create ATP.

What is Complex IV?

Complex IV is the fourth complex in the electron transport chain. It is also known as cytochrome c oxidase. This is the final electron acceptor in the mitochondrial electron transport chain, which helps to reduce oxygen to water. The reduction of oxygen to water is a fundamental part of oxidative phosphorylation, which occurs as a result of the electron transport chain.

Electron transport chain:

The electron transport chain (ETC) is a series of reactions that occur in the inner mitochondrial membrane. The components of ETC in order from NADH to O2 are: NADH-CoQ oxidoreductase (Complex I), Coenzyme Q (CoQ), Succinate-CoQ oxidoreductase (Complex II), Cytochrome bc1 (Complex III), Cytochrome c, Cytochrome c oxidase (Complex IV), and O2.

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Answer:

Catepillars

Explanation:

The given statement 'If an individual suffered damage to the brainstem, they would likely experience difficulty controlling their breathing, blood pressure, and eye movements' is true because the brainstem is a crucial part of the central nervous system and plays a vital role in maintaining essential life functions.

The brainstem can be divided into three main parts: the midbrain, pons, and medulla oblongata. Each part has specific functions related to the regulation and control of various bodily processes.

1. Midbrain: The midbrain is responsible for controlling eye movements and relaying auditory and visual information to other parts of the brain.

2. Pons: The pons is involved in the regulation of basic life-sustaining functions, such as breathing and sleep-wake cycles. It also helps relay information between different parts of the brain.

3. Medulla oblongata: The medulla oblongata controls essential autonomic functions, such as heart rate, blood pressure, and respiration.

When the brainstem is damaged, it can disrupt the normal functioning of these critical processes. This could lead to difficulties in controlling breathing, as the respiratory centers in the pons and medulla would be affected. Similarly, damage to the medulla could result in problems regulating blood pressure, as it is responsible for controlling the cardiovascular system.

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Of the following options, the nucleation of microtubule asters (E) does NOT occur during Prophase

During Prophase, microtubule asters nucleate to form a radial array of microtubules. In this array, the centrosomes form the two poles of the mitotic spindle while the microtubules overlap each other in the middle. Microtubule asters are critical for the formation of spindle fibers during cell division.

The process in which chromosomes condense and nuclear envelope breaks down to prepare for mitosis is known as Prophase. In prophase, many events occur in preparation for the mitosis, such as the separation of centrosomes, the beginning of mitotic spindle assembly, and the capture of chromosomes by kinetochore microtubules. However, the nucleation of microtubule asters does NOT occur during Prophase. Hence, the correct answer is Option E.

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Answer:

A

Explanation:

Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas. Each year, five and a half billion tons of carbon is released by burning fossil fuels.

The frequency of the heterozygotes in the given population is 2pq which is O.32, where p represents the dominant allele for a trait and q represents the recessive allele for that trait.

The heterozygotes may be defined as the presence of two different alleles at a particular gene locus.

In the given population, the frequency of the q allele = 0.2.

Then, according to Hardy-Weinberg genetic equilibrium, the frequency of the p allele = 1 - 0.2 = 0.8.

∴ The frequency of heterozygotes, 2pq = 2×0.8×0.2 = 0.32.

Therefore, the frequency of the heterozygotes in the given population is 2pq which is O.32.

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There are several reasons that might best explain the decline of American lobster populations. Some of the potential reasons include overfishing, climate change, habitat degradation.

It is likely that a combination of these factors, rather than a single one, is leading to the decline of American lobster populations in southern New England.

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Answer:

Start with evaporation. Place a full cup of water in front of a sunny window. Use a marker to make a line at the beginning water level.

After evaporation we have condensation. When the water vapor reaches the sky it cools to form clouds.

Finally, a precipitation experiment. Again, fill a cup almost full with water.

Explanation:

Matter is conserved because atoms are conserved in physical and chemical processes. As complex as the water cycle is, water molecules are conserved and endlessly recycled in nature. Conservation of mass is a physical law that s never broken.

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