which of the following components of total energy expenditure is most easily altered to achieve weight management goals? multiple choice question. thermic effect of food thermogenesis energy for physical activity basal metabolism

The statement that describes what will occur  if hepatoblasts were not present in the developing liver is The portal vein would still develop but the bile duct would not develop. Option D

In the absence of hepatoblasts,  there would be no cholangiocytes to make the bile ducts, but, the development of the portal vein, a component of the vascular system, would carry on developing.

The portal vein is a large blood vessel that carries blood from the intestines and spleen to the liver.

The bile duct is a small tube that carries bile from the liver to the gallbladder and small intestine.

Both of these structures are essential for the proper functioning of the liver.

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One gram of fat contains 9 calories, so 8 grams of fat in the peanut-butter granola bar would contain 8 * 9 = 72 calories. It means that 72 calories in this bar come from fat.

A peanut-butter granola bar contains 2 grams of protein, 8 grams of fat, and 20 grams of carbohydrate. One gram of fat contains 9 calories, so the total calories from fat in the bar can be calculated by multiplying the number of grams of fat by 9. In this case, 8 grams of fat multiplied by 9 calories per gram results in 72 calories from fat in the bar. To summarize, 72 calories of the total calories in the peanut-butter granola bar come from fat.

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The DNA from the virus is injected. It tells your body to start making antibodies to protect your body from a virus that was injected into your body. Then, your body makes enough antibodies.

Answer:

i think you to would get along great. good job ,man

Explanation:

Answer:

congrats.

you lucky you have a girl oof

The fact that the hydrosphere is a closed system, means that water is not lost.

Hydrosphere is defined as the layer of the earth's atmosphere that is occupied by water, vapour or ice that is found on the surface of the planet, underground, and in the air.

The hydrosphere of the earth's atmosphere is said to be a closed system because water moves in a variety of pathways that prevents it's loss for the hydrosphere.

One of the pathways is the water cycle which helps to maintain a continuous movement of water within the earth and the atmosphere.

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The plasma membrane, also known as the cell membrane, is the membrane found in all cells that separates the cell's interior from its surroundings.

A cell wall is attached to the plasma membrane on the outside of bacterial and plant cells. Most plasma membranes are approximately 50% lipid and 50% protein by weight, with glycolipids and glycoproteins accounting for 5 to 10% of the membrane mass.

The plasma membrane shields the cell from its surroundings, facilitates cellular transport, and transmits cellular signals. The plasma membrane structure is described by the fluid mosaic model as a mosaic of phospholipids, cholesterol, proteins, and carbohydrates.

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Answer:

I thinks it’s d

Explanation:

Usually fresh water lakes have a pH range between 6.5 to 8.5, this is appropiate for many organisms life and development.

Answer:

true im pretty sure

Explanation:

Answer:

2 common ancestor: The most recent ancestral form or species from which two different species evolved.

The expression of genes in eukaryotic cells can be controlled at all of the following stages of protein synthesis except b) DNA processing

Gene expression is controlled in eukaryotic cells at epigenetic, transcriptional, post-transcriptional, translational, and post-translational levels. In particular, gene expression is regulated at two levels. First, transcription is controlled by limiting the amount of mRNA produced by a particular gene. The second level of control is through post-transcriptional events that regulate the translation of mRNA into protein. In eukaryotic cells, the first level of regulation of gene expression occurs at the epigenetic level. Epigenetic mechanisms can control access to chromosomal regions to turn genes on or off.

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Answer:

When oceanic crust converges with continental crust, the denser oceanic plate plunges beneath the continental plate. This process, called subduction, occurs at the oceanic trenches. ... The subducting plate causes melting in the mantle above the plate. The magma rises and erupts, creating volcanoes

Explanation:

Answer:

Nervous tissue is found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities. It stimulates muscle contraction, creates an awareness of the environment, and plays a major role in emotions, memory, and reasoning.

Explanation:

Answer:

Is this going to fill my desires?

Explanation:

hope it helps

a) it can be synthesized in the body from the amino acid tryptophan.

The water-soluble vitamin niacin, sometimes referred to as vitamin B3, is crucial for a number of metabolic activities in the body. Tryptophan, an amino acid, may be used by the body to create it. Iron, riboflavin, and vitamin B6 are among the other nutrients needed for this conversion. Although eggs do contain some niacin, they are not regarded as a significant source of niacin in its preformed form. Pellagra, not beriberi (which is brought on by thiamine deficiency), is the name of the niacin deficient illness. Since it is a staple food with little dietary variety, maize does not protect against niacin deficiencies and may even make people more susceptible to pellagra.

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Explanation:

is there a graph to be shown

Answer: would likely go with ribosomomes

Explanation:

Answer:

Chemical Energy

Explanation:

Reticular Formation is the part of your brain that is most likely to have helped you notice this mistake, option a is correct.

The reticular formation is a network of neurons located in the brainstem, which plays a crucial role in regulating attention and arousal. It acts as a filter, helping to focus our attention on relevant information and filtering out irrelevant or distracting stimuli. When proofreading a paper, the reticular formation would be responsible for alerting us to errors or inconsistencies in the text, such as a misspelled name.

It helps us maintain attention to detail and detect errors or discrepancies in our own work. The basal ganglia, thalamus, and hypothalamus are not directly involved in this specific task of self-proofreading and error detection, option a is correct.

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This is is a smooth muscle hence it can perform the function of contraction and relaxation of the heart. (Option C)

The smooth muscle refers to the muscle that is not under conscious control. They control some involuntary movements such as the beating of the heart and breathing.

Thus muscle that is pictured here is a smooth muscle hence it can perform the function of contraction and relaxation of the heart.

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The main difference between these two mechanisms is that ion channels are passive, meaning that they do not require energy to open or close.

Protein-mediated facilitated diffusion, on the other hand, requires energy in the form of ATP to maintain the protein's conformation and allow for transport. Additionally, Ion channels are highly selective for specific ions and are not affected by the size and shape of the molecules, whereas facilitated diffusion is not selective and can transport any type of small molecules.

In summary, transport of molecules through ion channels and protein-mediated facilitated diffusion are two different mechanisms by which molecules can cross the cell membrane. The rate of transport for both mechanisms is determined by the concentration gradient of the molecules, with a higher concentration resulting in a higher rate of transport. The main difference between the two is that ion channels are passive and selective, while protein-mediated facilitated diffusion is active and not selective.

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The amount of biomass you would expect to find at the producer level is 10000 kg.

We know that only 10 percent of biomass is transferred from one trophic level whereas 90 percent of biomass is release in the form of heat energy. There is 10000 amount of biomass you would expect at the producer level if the secondary consumer level of an ecosystem had 100kg of biomass because we know that only 10 percent of biomass is transferred from one trophic level to another trophic level. The first trophic level is producer whereas the primary consumer is second trophic level and secondary consumer is the third trophic level.

We can conclude that the amount of biomass you would expect to find at the producer level is 10000 kg.

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Answer:

Plasma membrane- outer boundary of the cell

Nucleus- houses DNA/control center of the cell

Ribosome- cellular structure where proteins are made

Cytoplasm- interior of a cell that maintains cells and shape and contains organelles

Mitochondria- power house of the cell

Chloroplast- organelle found only in plant cell (because it is used for photosynthesis)

Flagellum- hair like structure that enables cell movement

In the case of Mount Pinatubo, the result was a measurable cooling of the Earth's surface for a period of almost two years.

The idea of a global average temperature might seem strange. After all, the difference in the temperature at the highest and lowest points on Earth right now is probably greater than 100°F (55°C).

In both the Northern Hemisphere and the Southern Hemisphere, temperatures change from day to day and between seasonal extremes. As a result, some regions of Earth are fairly cold while others are extremely hot.

Thus, it may appear absurd to talk about the "average" temperature. The idea of a global average temperature is useful for identifying and monitoring changes in the Earth's energy budget. Scientists use temperature readings from around the world to determine the average global temperature.

Therefore, In the case of Mount Pinatubo, the result was a measurable cooling of the Earth's surface for a period of almost two years.

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Answer:

Independent variable: LENGTH OF EXPOSURE TO DIRECT SUNLIGHT

Dependent variable: PRODUCTION OF FLOWERS

Control group: THE GROUP OF PLANT THAT WASN'T EXPOSED TO SUNLIGHT i.e. 0 hours

Experimental group: THE GROUP OF PLANTS THAT WERE EXPOSED TO SUNLIGHT

Constant: THE SAME PLANT SPECIES

Explanation:

Independent variable is the variable that the experimenter changes or manipulates in an experiment. In this experiment, the experimenter exposes the specific plant species to sunlight at different length of time, hence, the LENGTH OF EXPOSURE TO DIRECT SUNLIGHT is the independent variable.

Dependent variable is the variable which is measured in an experiment. In this experiment, the measured/dependent variable is the PRODUCTION RATE OF FLOWERS by the plant species.

Control group is the group in an experiment that does not receive the variable being tested. In this experience, the control group is THE GROUP OF PLANT THAT WASN'T EXPOSED TO SUNLIGHT i.e. 0 hours

Experimental group is the group of am experiment that is exposed to the experimental treatment (sunlight). In this case, the experimental group is THE GROUP OF PLANTS THAT WERE EXPOSED TO SUNLIGHT.

Constants are variables of an experiment that must be kept unchanged for all groups throughout the experiment in order not to affect the experiment's outcome. In this experiment, the constant is THE SAME PLANT SPECIES used,

The reason for fetal globin chain switching is that the embryo and fetus receive different concentrations of oxygen compared to after birth. The correct answer is option D.

Fetal globin chain switching occurs due to the different oxygen concentrations experienced by the embryo and fetus compared to after birth. In the womb, the fetus relies on maternal oxygen, which has a lower concentration than in the postnatal environment.

Fetal hemoglobin (HbF), containing two alpha and two gamma globin chains, has a higher affinity for oxygen than adult hemoglobin (HbA), which has two alpha and two beta globin chains. This allows the fetus to extract oxygen from the maternal blood more effectively. After birth, oxygen concentration increases, and the gamma chains are replaced by beta chains, transitioning to adult hemoglobin.

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A folded membrane that forms a network of interconnected compartments in the cytoplasm is called: Endoplasmic Reticulum(ER)

Endoplasmic Reticulum(ER) is a part of the cell. Every eukaryotic cell contains an Endoplasmic Reticulum. It is a continuous membrane within the cytoplasm of the eukaryotic cell.

Endoplasmic Reticulum can be found in animal cells. In animal cells, more than half of the membranous contents of the cell are usually occupied by Endoplasmic Reticulum. It serves various functions such as helping in a process of synthesis, folding modification, and transport of protein. Depending upon certain physical and functional characteristics Endoplasmic Reticulum can be differentiated into two types, which are called Rough Endoplasmic Reticulum and Smooth Endoplasmic Reticulum.

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