Eukaryotic cells and bacterlal cells differ substantially in size. Describe five cell structures that differ in function and/or presence for eukaryotes that differ from bacteria because of this size difference. Explain how these structures are adaptations to the size difference for eukaryotes. NOTES: A diference can be the absence of presence of a trat or a structural difference in the same trait. The difference must also be due to function. For insance, the ribosemes and chromosomes between bscteria and eukaryotes are different sizes but have the exact came function - so DO NOT USE Capitalization: Unless writing the domains (Bacteria and Eukaryal bactera and eukaryotes should be lowercase. Only one structure should be capitaised because it is a proper noun (Golgi) all other structures should be lower case Prokaryote is a cell type, not an organism. Do not refer to bacteria as prokaryotes

Answer:

A. carbon dioxide and water

In nature, not all individuals in a biological population has the same reproductive success. Additionally, the reproductive succes of an individual may be related to a heritable trait. Disruptive (natural) selection is operating when indivuals with extreme values for an heritable trait have a greater reproductive succes that the ones with intermediate values for the same trait.

Answer:  Producers are responsible for providing energy to the rest of the ecosystem.

Explanation: Producers, such as plants or algae, are capable of capturing energy from the sun (through photosynthesis) or other sources and converting it into organic matter. This organic matter serves as a source of food and energy for other organisms in the ecosystem, including herbivores, carnivores, and decomposers. Therefore, if the producer population becomes unstable or declines significantly, there will be a reduced energy input into the ecosystem, which can have cascading effects on the entire food web. The stability of the producer population is vital for sustaining the energy flow and supporting the diverse species that rely on them directly or indirectly for survival.

Answer:

There is overall agreement that volcanic sulphate aerosols in the stratosphere can reduce solar radiation reaching the earth's surface for years, thereby reducing surface temperatures, affecting global circulation patterns and generally the global climate system.

Answer:

Explanation:

sus

Answer:

Microvilli located at the apical surface of epithelial cells are responsible for increasing the absorptive surface area of the cell and increasing the efficiency of nutrient absorption. They are also involved in secretion of substances, as well as in recognition of antigens and other molecules. Microvilli are supported by the actin cytoskeleton, which is composed of a network of actin filaments that provides structure and stability to the microvilli.

The food that gets its color from a change in pH is canned peaches. When peaches are canned, they are typically treated with an acidic solution to prevent bacterial growth and preserve their flavor and texture. The correct option is C.

The acidic solution causes a change in pH, which affects the color of the peaches. In an acidic environment, the pigments responsible for the yellow-orange color of the peaches break down and become more water-soluble, leading to a paler color. This effect is reversible, and the color of the peaches can be restored by neutralizing the acidity with a base such as baking soda.

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To investigate the influence of low soil water availability on photosynthesis, Klaus Winter and Joseph Holtum (2014) subjected a potted Clusia pratensis plant to low soil water availability.

Photosynthesis is a process by which green plants and some other organisms use sunlight to synthesize foods with the help of carbon dioxide and water. The Clusia pratensis is a tree species that is native to tropical regions of South America. It is an important source of food and water for animals in these regions. In a study conducted by Klaus Winter and Joseph Holtum (2014), they subjected a potted Clusia pratensis plant to low soil water availability to investigate the influence of low soil water availability on photosynthesis.

Photosynthesis is a process that requires water, carbon dioxide, and sunlight to produce glucose. The glucose is then converted into energy that is used by the plant. In low soil water availability conditions, the plant may not have enough water to undergo photosynthesis. This can lead to a decrease in the plant's growth rate and productivity.In conclusion, low soil water availability can have a negative effect on photosynthesis and plant productivity. The study conducted by Klaus Winter and Joseph Holtum (2014) on a potted Clusia pratensis plant is a good example of this.

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A bilayer of self-arranging , tail-to-tail phospholipid molecules makes up the cell membrane (Option c).

The phospholipids make up the majority of the lipid bilayer.

Polar phosphate heads and hydrophobic non-polar fatty acid tails make up these phospholipids.

The arrangement of phospholipids in water is that their hydrophilic phosphate heads face the outward aqueous side and their hydrophobic fatty acid tails face each other inside the lipid bilayer.

In summary, phospholipid molecules that self-arrange tail-to-tail form a bilayer that makes up the cell membrane (Option c).

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5' ATATCAGTACGT 3'

AS T is complemntary to A and C is complementary to G

Answer:

C.

Explanation:

:DDD

Answer:

the definition of 'limiting factor' is...........In ecology, common limiting factor resources are environmental features that limit the growth, abundance, or distribution of an organism or a population of organisms in an ecosystem. ... The limiting factor also causes competition between individuals of a species population. For example, space is a limiting factor.

Explanation:

Was that what you were asking?

The answer is True. The area between the two cells is known as the synaptic cleft.

There is a distinct separation between the presynaptic and the postsynaptic membrane.

The difference tells us about there must be some intermediary signaling mechanism between the presynaptic neuron and the postsynaptic neuron.

The presynaptic neuron is the cell that sends information whereas the postsynaptic neuron is the cell that receives information

The synaptic cleft is the small space separating the presynaptic membrane and postsynaptic membrane and the synaptic vesicle is an organelle that houses chemical neurotransmitters.

Neurotransmitters are chemicals that are released by neurons and bind to receptor sites, which are synthesized in the neuron, and packaged into vesicles.

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these events involve release of the hormone gastrin.

Gastrin is produced by the G-cells located in the stomach lining and duodenum (the first part of the small intestine).

When food enters the stomach, gastrin is released into the bloodstream and stimulates the production of hydrochloric acid and pepsinogen by the parietal cells and chief cells in the stomach lining, respectively.

This increase in stomach acid and digestive enzymes helps to break down food and prepare it for absorption in the small intestine. Gastrin also promotes the contraction of the smooth muscles in the stomach, which helps to mix and churn the food, further aiding in digestion.

In addition to its role in stimulating stomach acid and digestive enzyme production, gastrin also has several other functions in the digestive system. It promotes the growth and repair of the stomach lining, regulates the movement of food through the digestive tract, and stimulates the release of bile from the gallbladder.

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By analyzing their genetic material, scientists can uncover information about their physical traits, susceptibility to diseases, and interbreeding with other hominin species.

The Neanderthal genome has been sequenced, allowing scientists to compare it with the genomes of modern humans and other hominin species. This genetic comparison provides information about specific genetic variants that were present in Neanderthals and their potential implications for adaptation.

By studying the genetic variations, researchers can gain insights into Neanderthal adaptations related to physical characteristics. For example, analysis of their genome has revealed adaptations related to cold weather environments, such as genes involved in thermoregulation and the production of keratin for hair and skin.

Genetic evidence also sheds light on Neanderthals' susceptibility to diseases. Comparisons with modern human genomes have shown that Neanderthals had genetic variants associated with immune-related functions. This suggests that they were exposed to different pathogens and had their own immune adaptations.

Furthermore, the genetic evidence from the Neanderthal genome provides insights into interbreeding events between Neanderthals and early humans. The presence of Neanderthal DNA in the genomes of modern non-African populations indicates that interbreeding occurred and has left a genetic legacy in modern humans.

In summary, the analysis of the Neanderthal genome helps paleoanthropologists understand their adaptations by providing information about their physical traits, susceptibility to diseases, and interbreeding with other hominin species. The genetic evidence reveals insights into their adaptations to different environments, immune functions, and their genetic contributions to the modern human gene pool.

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The correct pathway along which images received by the retina of the eye will travel into the brain is option E, which is: "Optic nerve, optic chiasma, optic tracts, thalamus, optic radiation, occipital lobe."

When light enters the eye, it is focused by the lens onto the retina, where it activates specialized cells called photoreceptors. These photoreceptors convert the light energy into electrical signals, which are then transmitted to the brain via the optic nerve. The optic nerve carries these signals from the eye to the optic chiasma, which is a cross-shaped structure where some fibers from each eye cross over to the opposite side of the brain.

From the optic chiasma, the signals are carried by the optic tracts to the thalamus, which acts as a relay station for sensory information. The thalamus then sends the visual signals to the primary visual cortex, located in the occipital lobe, via a bundle of optic nerve fibers called the optic radiation. Here, the visual information is processed and interpreted, allowing us to see and make sense of the world around us.

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Answer:

Step 1: Pollination

In general, male gametes are contained in pollen, which is carried by wind, water, or wildlife (both insects and animals) to reach female gametes. The pollen is deposited on a plant's stigma, which is part of the pistil (the elongated part of a flower extending from the ovary). This process is called pollination.

Step 2: Germination

Within a few minutes, pollen tubes begin growing, or germinating, toward the egg cell. These tubes will provide a path for the sperm carried in the pollen to reach the egg.

Step 3: Penetration of the Ovule

The pollen tubes penetrate the ovule, which contains the female gametes.

Step 4: Fertilization

Sperm travel down the pollen tubes and fertilize an egg. Most angiosperms undergo double fertilization, where both an egg and the polar nuclei in the embryonic sac are fertilized.

Explanation:

^^^^^^^^

Answer:

Variation can be defined as any difference between the individuals in a species or groups of organisms of any species. mutation is the ultimate source of genetic variation, but mechanisms such as sexual reproduction and gene flow contribute to it as well

Explanation:

Answer:

The phylum brachiopoda

Explanation:

In a duplicated chromosome, there are two identical copies of the DNA molecule attached to each other at a region called the centromere.

Each of these copies is referred to as a sister chromatid. Therefore, in a duplicated chromosome, there are two sister chromatids. During cell division, the sister chromatids separate and move to opposite ends of the cell, becoming individual chromosomes in the daughter cells. This ensures that each daughter cell receives a complete set of chromosomes.

So, to answer your question, there are two chromatids in a duplicated chromosome. It is important to note that the number of chromatids can vary depending on the stage of the cell cycle and the type of cell being considered. However, in a duplicated chromosome, there are always two identical sister chromatids.

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Answer:

the answer is D.

Explanation:

The heritable variation is defined as the variance of the breeding values among individuals.

Sexual reproduction describes heritable variation.

Life on Earth is being shaped in large part through genetic selection. According to traditional genetic theory, a trait's response to selection is the result of the trait's additive genetic variance and the strength of the selection process.

The innate ability of a population to adapt to selection is reflected in the additive genetic variance. However, the social structure of life is ignored by the typical additive genetic variance.

A broad definition of heritable variation is, however, lacking in models that take indirect genetic effects into account. Here, I offer a broad definition of the heritable variation that affects a population's capacity to adapt to selection.

Therefore, Sexual reproduction describes heritable variation.

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Answer:

dog and parrot

Explanation:

Because they are warm blooded animals there for they are able to generate internal heat letting them maintain a constant temp no matter the temperature  in their surroundings

Answer:

Parrot and Dog

Hope this helps!

Explanation:

1. Initiation factor 3 (IF3) interferes with the binding of formylmethionyl tRNAs to the small ribosomal subunit.
2. Anticodons recognize UAC, UAU, and UGC as the Shine-Dalgarno sequence codons.
3. The 40S subunit finds the translation start site using the energy of GTP hydrolysis.
4. Elongation factor Tu (EF-Tu) delivers the aminoacyl-tRNA to the "A site" in E. coli.
5. Methionine (Met) is the first amino acid in eukaryotic translation.

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Answer:

muscularis mucosa

Explanation:

The thin layer of smooth muscle is called the muscularis mucosa.

Answer:

NADPH formation.

The net effect of these steps is to convert light energy into chemical energy in the form of ATP and NADPH. The ATP and NADPH from the light-dependent reactions are used to make sugars in the next stage of photosynthesis, the Calvin cycle.

Condensation of chromatin occurs during the prophase stage. In meiotic cell division, the mother cell divides twice after one round of replication.

As eukaryotic cells enter mitosis or meiosis, chromosomes condense and become visible under light microscopy. During interphase (G1 + S + G2), chromosomes are fully or partially decondensed into chromatin (DNA wound around histone proteins) (nucleosomes).

During prophase, the nucleus's complex of DNA and proteins, known as chromatin, condenses. The chromatin coils and compacts, resulting in the formation of visible chromosomes.

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Answer:

Epitheial tissue

Explanation: