Which of the following solid fuels has the highest heating value? A. Bituminous coal B. Lignite C. Wood D. Coke

Answers

Answer 1

Answer: Among the following solid fuels given in the question, coke has the highest heating value. The correct option among all the options that are given in the question is the last option or option "D". The heating value of coke is calculated to be between 28000 kJ/Kg to 31000 kJ/kg. I hope the answer helps you.

Answer 2

Answer:

Bituminous coal is the right answer.

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Why are proteins important to all living things

Answers

because carry out all the functions in the human body necessary for living. Proteins make up hormones that are required for living. Insulin - responsible for stabilising blood sugar. Haemoglobin - responsible for carrying oxygen around the body. Melatonin - responsible for helping us get to sleep. Adrenalin - responsible for the flight-fight-freeze response. There are many more but here are just a few.

Scientific investigations often lead to the formulation of new scientific questions. The observations Charles Darwin made during his time aboard the H.M.S. Beagle prompted him to ask which question?

Answers

Answer:

Darwin's observations led him to wonder: How do species originate?

Explanation:

Darwin observed morphological traits and geographic distribution of many species as well as many fossils. From these observations the question: How do species originate?, arose. Darwin concludes that similar species must originate from a recent common ancestor with similar traits to all their descendants. This is the basis of the theory of evolution.

Whether the similarities that he was seeing bewteen extinct fossils and living animals, as well as the small differences in structure and behaviour seen in finches and tortoises on the Galapagos islands, was due to the process of natural selection. This is where a genetic variation/mutation in an animal proves beneficial to the species in their environment, while the other members of the same species with the mutation die out, as they do not have the same abilities as the mutated individuals.

A scientist thinks he has discovered a drug that interferes with the functioning of a virus in the human body. To effectively block infection, the drug can

Answers

The correct options for the question are as follows:

weaken viral respiration.

destroy viral mitochondria.

reduce the ability of the virus to absorb cells.

prevent the virus from entering cells.

Answer:

The correct answer is - prevent viruses from entering the cell.

Explanation:

Unlike endocrine glands, exocrine glands A. utilize ducts to release their secretions.
B. produce and release secretions.
C. release secretions into the blood.
D. include the thymus and thyroid.

Answers

The answer is A. utilize ducts to release their secretions.
Exocrine glands are glands that secrete their products into ducts, they are the counterpart of endocrine glands which release their products into the bloodstream. Typical exocrine glands include: mammary glands, sweat glands, salivary glands, and many glands of the digestive system.

Unlike endocrine glands, exocrine glands utilize ducts to release their secretions.

Option A is correct.

How do we explain?

Exocrine glands release their secretions through ducts, while endocrine glands release their secretions directly into the bloodstream. The thymus and thyroid are endocrine glands.

Exocrine glands secretions can be either watery or viscous, and they can serve a variety of purposes, such as lubrication, digestion, or protection.

Option A is correct.

Learn more about Exocrine glands at:

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Which biome is characterized by very low temperatures, little precipitation, and permafrost? A) desert B) temperature forest C) tundra D) tropical rain forest

Answers

C) Tundra without a doubt, the tundra biome is very cold year-round and, in some cases especially in Antarctica, can has no visual of the sun for months at a time.

c) tundra
is characterized by very low temperatures, little precipitation , and permafrost.

Effect of nutrition on puberty in domestic livestock animals

Answers

Answer:

Explanation:

Nutrition is a major component determining puberty in domestic livestock animals. Adequate and balanced diet is needed for appropriate growth, development, and the attainment of reproductive maturity. The effects of diet on puberty are varied. Timely puberty onset relies on optimal body weight and size obtained by suitable diet. Nutritional shortages or imbalances can delay puberty by altering hormonal control. Nutrients including proteins, vitamins, and minerals are important for hormone production and activity. Insufficient nutrition might impede the development of reproductive organs and postpone sexual maturation. Furthermore, undernutrition can lead to irregular estrous cycles, lower conception rates, and extended anestrus, reducing fertility. Proper diet also effects stress response and intestinal health, thereby altering hormonal balance and puberty. Achieving adequate nutrition according to specific requirements is crucial for guaranteeing prompt puberty and increasing reproductive performance in domestic livestock animals.

To learn more about nutrition on puberty in domestic livestock animals

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Nutrition plays a significant role in the onset and progression of puberty in domestic livestock animals. Proper nutrition is essential for the development and maturation of reproductive organs and the hormonal balance required for puberty. Adequate energy, protein, vitamins, and minerals are necessary for optimal growth and reproductive development.

Insufficient nutrition can delay puberty and result in delayed or irregular estrus cycles in female animals. In males, poor nutrition can lead to delayed testicular development and reduced sperm production. On the other hand, excessive nutrition, especially high energy diets, can also have negative effects on puberty. Overfeeding can lead to excessive fat deposition, which can disrupt hormonal balance and delay puberty.

Balanced nutrition, tailored to the specific needs of each species and breed, is crucial for promoting timely and healthy puberty in domestic livestock animals. Proper nutrition ensures optimal growth, development, and reproductive performance, contributing to overall herd or flock productivity.

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Several types of ________ are used to produce yogurt.A. moldsB. yeastsC. protozoaD. Bacteria