Answer:the unequal ability of individuals to survive and reproduce
Explanation:
Answer:
Antoinette was diagnosed with hypertension, a noncommunicable disease in which her blood pressure is higher than normal. What is the most likely explanation for why she is hypertensive?
Antoinette condition which is hypertension could be as result of excessive stress and deep thought which makes the heart beat the work excessively by pumping more blood and over work the normal working rate.
Anxiety might also contribute to such as well, life burden could enable Anoinette to have such condition.
Explanation:
Answer:
She had a diet high in salt intake
Explanation:
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When a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones.
When blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows.
When a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs
Answer:
The statement - When blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows, describes a negative feedback loop.
Explanation:
In the human body, the term homeostasis means the tendency of the various systems in the human body to stay in optimal ranges for health by self regulation through feedback controls. It is very important because it maintains equilibrium and provides stability to the human body. A negative feedback loop (inhibitory loop) is a type of self-regulating system in which increased output from the system inhibits the future production by the system. Example of negative feedback to achieve homeostasis are blood pressure, body temperature, blood sugar. In blood sugar regulation, the hormone insulin lowers blood glucose when levels are high and the glucagon increases blood glucose when levels are low. In a positive feedback system, the output amplifies the original stimulus. Examples of a positive feedback system are child birth, lactation, blood clotting etc. During child birth, the hormone oxytocin released increases and speeds up the contractions.
b] population growth
c] relaxation of government regulations
d] increased consumption
e] reduced resources
f] global warming
g] hole in ozone layer
population growth
relaxation of government regulations
increased consumption those are the answers
The increasing demand for power is driven by reduced efficiency in appliances, population growth, and increased consumption. Reduced efficiency requires more power, population growth means more users, and increased consumption can be attributed to social and technological advances.
There are several reasons for the increasing demand for power, and in this case, we are focusing on three of them: reduced efficiency in appliances, population growth, and increased consumption.
Reduced efficiency in appliances means that more power is needed for these appliances to function, thereby driving up demand. On the other hand, population growth also leads to an increased need for power, because more people mean more use of appliances and technology that require power. Lastly, increased consumption, which may be a result of societal and technological progress, also contributes to the growing demand for power as people's lifestyles become more comfortable and more machine-dependent.
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Answer: Glucose is the only sugar used by the body to provide energy for its tissues. Therefore, all digestible polysaccharides, disaccharides, and monosaccharides must eventually be converted into glucose or a metabolite of glucose by various liver enzymes. Because of its significant importance to proper cellular function, blood glucose levels must be kept relatively constant. Among the enormous metabolic activities the liver performs, it also includes regulating the level of blood glucose. During periods of food consumption, pancreatic beta cells sense the rise in blood glucose and begin to secrete the hormone insulin. Insulin binds to many cells in the body having appropriate receptors for the peptide hormone and causes a general uptake in cellular glucose. In the liver, insulin causes the uptake of glucose as well as the synthesis of glycogen, a glucose storage polymer. In this way, the liver is able to remove excessive levels of blood glucose through the action of insulin.In contrast, the hormone glucagons is secreted into the bloodstream by pancreatic alpha cells upon sensing falling levels of blood glucose. Upon binding to targeted cells such as skeletal muscle and brain cells, glucagon acts to decrease the amount of glucose in the bloodstream. This hormone inhibits the uptake of glucose by muscle and other cells and promotes the breakdown of glycogen in the liver in order to release glucose into the blood. Glucagon also promotes gluconeogenesis, a process involving the synthesis of glucose from amino acid precursors. Through the effects of both glucagon and insulin, blood glucose can usually be regulated in concentrations between 70 and 115mg/100 ml of blood.Other hormones of importance in glucose regulation are epinephrine and cortisol. Both hormones are secreted from the adrenal glands, however, epinephrine mimics the effects of glucagon while cortisol mobilizes glucose during periods of emotional stress or exercise.Despite the liver's unique ability to maintain homeostatic levels of blood glucose, it only stores enough for a twenty-four hour period of fasting. After twenty four hours, the tissues in the body that preferentially rely on glucose, particularly the brain and skeletal muscle, must seek an alternative energy source. During fasting periods, when the insulin to glucagons ratio is low, adipose tissue begins to release fatty acids into the bloodstream. Fatty acids are long hydrocarbon chains consisting of single carboxylic acid group and are not very soluble in water. Skeletal muscle begins to use fatty acids for energy during resting conditions; however, the brain cannot afford the same luxury. Fatty acids are too long and bulky to cross the blood-brain barrier. Therefore, proteins from various body tissues are broken down into amino acids and used by the liver to produce glucose for the brain and muscle. This process is known as gluconeogenesis or "the production of new glucose." If fasting is prolonged for more than a day, the body enters a state called ketosis. Ketosis comes from the root word ketones and indicates a carbon atom with two side groups bonded to an oxygen atom. Ketones are produced when there is no longer enough oxaloacetate in the mitochondria of cells to condense with acetyl CoA formed from fatty acids. Oxaloacetate is a four-carbon compound that begins the first reaction of the Krebs Cycle, a cycle containing a series of reactions that produces high-energy species to eventually be used to produce energy for the cell. Since oxaloacetate is formed from pyruvate (a metabolite of glucose), a certain level of carbohydrate is required in order to burn fats. Otherwise, fatty acids cannot be completely broken down and ketones will be produced.
Carbohydrates carry out various functions in our bodies such as providing and storing energy, providing structural support, and aiding in various biological roles. However, they do not play a role in the production of hormones.
Carbohydrates serve several critical functions in the body. They are broken down into glucose, contributing to energy production as ATP through metabolic pathways required for cellular function. They form a part of our diet in the form of grains, fruits, and vegetables and provide the necessary energy for our daily activities. Organisms use carbohydrates for diverse functions, including energy storage and structural support. Glycogen in animals and starch in plants are examples of carbohydrates used for energy storage. As for structural support, the modified polysaccharide chitin in fungi and animals or the polysaccharide cellulose in plants serve this purpose. Apart from these, sugars like ribose and deoxyribose form the backbones of RNA and DNA, respectively.
In a nutshell, carbohydrates supply energy, store energy, support structural roles, and aid in various other biological roles like in the immune system and cell-cell recognition. When there is an excess of carbohydrates, they are stored in the liver and skeletal muscles as glycogen, or converted into fat in adipose cells. However, one role that carbohydrates do not serve in the body is the production of hormones, which is mainly carried out by proteins and lipids.
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Which best describes the structures labeled X?
1. spores, which are the reproductive cells of the fungus
2. hyphae, which are the reproductive cells of the fungus
3. spores, which make up the body of the fungus
4. hyphae, which make up the body of the fungus
The diagram shown in the figure is the hyphae of the fungus. These make up the body of the fungus. Thus, the correct option is 4.
Fungi are the multicellular eukaryotic organisms. These organisms reproduce through the production of spores. The whole body of fungus is made up of hyphae.
A hypha is a long, branching, filamentous structure of the fungus, oomycete, or actinobacterium species. In most of the fungi, hyphae are the main mode of vegetative growth in the organism, and these are collectively called as mycelium.
A hypha consists of one or more different types of cells which are surrounded by a tubular cell wall outside. In most fungi, hyphae are divided into cells by the internal cross-walls called septa. Septa are usually perforated by the pores which are large enough for ribosomes, mitochondria, and sometimes for the nuclei to flow between the cells.
Therefore, the correct option is 4.
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Answer:
4.
Explanation:
I did this in class