Which two organelles are responsible for providing the plant cell with energy?

Answer: b.  Fossil fuels are a valuable energy source for the biosphere.

Explanation:

The living organisms are dependent upon the earth crust for their food and resource needs. The earth crust is mined for a variety of inorganic and organic reserves like minerals, fossil fuels like petroleum, gasoline, natural gas and coal. The fossil fuels are non-renewable resources which are produced after million's of years the complete degradation and decomposition of the organic matter of dead animals and plants. This act as source of energy by the living organisms in biosphere.            

Yes, two alleles can contribute to multiple phenotypes through multiple allele inheritance and dominance hierarchies, allowing for a variety of phenotypic expressions beyond the simple dominant-recessive relationships originally described by Mendel.

It is possible for two alleles to contribute to multiple phenotypes if there are dominance hierarchies among multiple alleles at a single gene locus. This is known as multiple allele inheritance.

When discussing multiple alleles in a population, it is important to note that while an individual organism can only have two alleles for a gene (one from each parent), a population may have many alleles for a single gene. Some alleles might be dominant, others recessive, and some may even show incomplete dominance or co-dominance.

In the case of a gene with four different alleles, these can interact in various ways to produce a spectrum of phenotypes. For example, in rabbits, the coat color is determined by multiple alleles of the c gene. The wild-type allele is dominant to all other alleles, chinchilla is incompletely dominant over the Himalayan and albino alleles, and so forth. Therefore, the phenotype of progeny resulting from crosses between any pair of the four mutants will depend on the dominance hierarchy of these alleles.

To answer the original question, two alleles can influence more than two phenotypes if there are multiple alleles at the population level and varying dominance relationships among those alleles.

The hypothalamus is the key part of the brain that controls the autonomic nervous system, managing involuntary functions and maintaining homeostasis.

The autonomic nervous system (ANS) manages involuntary functions such as heart rate, blood flow, and digestion. The hypothalamus is the primary structure in the brain that coordinates these functions. The hypothalamus integrates sensory information and cognitive processes to manage the ANS. It sends signals via the medial forebrain bundle and the dorsal longitudinal fasciculus to brain stem and spinal components of the ANS. This integration allows for the control of the lungs, heart, smooth muscle, and glandular functions without our conscious input. It is crucial for maintaining homeostasis in the body through its regulation of the sympathetic and parasympathetic nervous systems, which have often opposing effects to balance the body's internal environment.

Answer:

Phytoplankton

Explanation:

Formed by unicellular eukaryote microalgae, phytoplankton is defined as the portion of planktonic organisms capable of photosynthesis, constituting the basis of the food chain in aquatic ecosystems. For this reason, we can say that in an ocean ecosystem, phytoplankton production is necessary to start a food chain.

Phytoplankton are composed of individuals from different taxonomic groups that have some common characteristics: they all have individualized nucleus and complex organelles in their cytoplasm, as well as photosynthetic pigments (chlorophyll a, b, carotenoids). These organisms, predominantly autotrophic, can also ingest particles, being characterized in some cases as myxotrophic.

The reduction of pyruvate forms a molecule called LACTATE.  When human muscle cells doesn’t consist enough oxygen to convert organic molecules into ATP through cellular respiration, then it is called LACTIC ACID FERMENTATION. Instead of entering the mitochondria and being converted to acetyl CoA, pyruvate is reduced an electron is given, which is also a product of glycolysis. 

The organelles which are abundant in liver cells are endoplasmic reticulum helps liver to detoxify potentially toxic substances.

The endoplasmic reticulum (ER) is an intracellular organelle made up of a network of continuous membranes. The ER is highly active in protein modification, lipid metabolism, and xenobiotic detoxification in the liver.

Maintaining these complex processes necessitates meticulous control over the ER lumen environment as well as the ER volume.The endoplasmic reticulum can be smooth or rough, and its function is normally to produce proteins that allow the rest of the cell to function.

Ribosomes, which are small, round organelles that make proteins, are found in the rough endoplasmic reticulum. When those proteins are produced incorrectly, they can remain within the endoplasmic reticulum.

To find more on endoplasmic reticulum, refer here:

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Vascular plants are divided into seedless vascular plants and seed plants. Seed plants are further classified into gymnosperms (no flowers produced) and angiosperms (flowers and seeds produced). Examples include pines and fruit trees respectively.

Vascular plants are predominantly divided into two core groups: seedless vascular plants and seed plants. The seedless vascular group includes species such as ferns and club mosses. The seed plants are further classified into gymnosperms and angiosperms. Gymnosperms are plants that produce seeds but do not produce flowers, while angiosperms are plants that produce both flowers and seeds. Notable gymnosperms include pines and spruces, whereas examples of angiosperms include fruit trees and flowering plants.

Vascular plants are divided into two main groups: seedless vascular plants, which include ferns and club mosses, and seed plants. Seed plants are further divided into gymnosperms, which are seed plants that do not produce flowers, and angiosperms, which are seed plants that do produce flowers.

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Define (articulate the problem, objectives, resources, project, etc):

-Quality Circles

-Flow charts

Measure (collection of data, establish base lines for improvement):

-Pareto Charts

-Check Sheets

Analyse (identify, validate):

-Cause-and-effect diagrams

Improve (test and implement solutions):

-Brainstorming 

Control (monitoring improvements and ensure continuing success):

-Control Charts for new Process

A tulip plant wilts when it is not watered because it loses turgor pressure and cannot properly perform photosynthesis. Watering restores turgor pressure and enables photosynthesis.

Turgor pressure is the force within the cell that pushes the plasma membrane against the cell wall, and it is chiefly maintained by water. So, when a plant doesn't get enough water, it loses this pressure and starts to wilt.

Moreover, water is crucial for the plant's ability to perform photosynthesis. This process, which involves converting sunlight into chemical energy, requires water. When a tulip plant doesn't have enough water, it will stop photosynthesizing for extended periods until it has adequate water to resume doing so. Thus, watering the wilted plant restores both turgor pressure and its ability to photosynthesize.

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In 1940, Matthew and Marion Stirling found a series of stone carvings and monuments at the La Venta site in Mexico. This site is significant in history because it was a major location of the Olmec civilization.

In 1940, husband and wife archaeologist team, Matthew and Marion Stirling, discovered a series of stone carvings and monuments at the La Venta site in Mexico. The La Venta site is notable for being one of the primary locations of the Olmec civilization, one of Mesoamerica's earliest and most influential cultures. The Stirling's findings at La Venta included upright stone monuments or 'stelae', altars, and large stone heads, which have since become iconic representations of the Olmec civilization.

In 1940, Matthew and Marion Stirling found artifacts at the site of Machu Picchu, a fifteenth-century Incan site located in Peru.

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Answer: The correct answer is -

Gradualism.

Gradualism can be described as an evolutionary theory according to which evolution of organisms/species proceeds continuously at a slow and steady rate that is without any sudden formation of new biological features or sudden formation of new species from one generation to the next generation. The approach in which Charles Darwin proposed the emergence of new species (over many generations) from already existing species is attributed to gradualism.

In other words, species evolving at slow and constant rate is known as gradualism.

From this information, John and Sue have a 25% probability (1 in 4) of having a child with the disease (aa), a 50% probability (2 in 4) of having a child who is a carrier (Aa), and a 25% probability (1 in 4) of having a child who is neither affected nor a carrier (AA). This is figured through a Punnett Square analysis of two heterozygous carriers (Aa x Aa).

In this, we are dealing with a pedigree that represents an autosomal recessive disease. Let's first understand the symbols used in a pedigree:

In order to assign the appropriate symbols to each individual, we need to identify their genotypes. Since the disease is autosomal recessive, it means that the disease allele is represented by 'a', and the normal allele is represented by 'A'. Therefore:

Given the information:

With this knowledge, we can deduce the following genotypes: