Answer:
Renewable and nonrenewable resources are energy sources that human society uses to function on a daily basis. The difference between these two types of resources is that renewable resources can naturally replenish themselves while nonrenewable resources cannot.
it is 21,00 kilometers around the earth and the earth rotates in 24 hours how fast is it rotating
Answer: 21,000x24= 504,000 kilometers per hour.
Explanation: Hope that helped you.
What is chemosynthesis?
How do chemosynthetic organisms get energy? Some examples of organisms include colorless sulfur bacteria, iron bacteria, and giant tube worms (Riftia parchyptila).
the synthesis of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals, typically in the absence of sunlight.
1. List 4 classes of animals reared in the Caribbean ___________________________________________________________ ___________________________________________________________ 2. Identify 1 class of animal stated above and state the purpose(s) for rearing ___________________________________________________________ ___________________________________________________________ 3. Define the following terms: Breed, Species, Herd ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ 4. To which class of animal do the following terms refer? (a) Bovine: ___________________________________ (b)Ovine: ____________________________________ (c) Equine: ____________________
Answer:
1. Pigs, Sheep, Goats, Cattle
2. The purpose of rearing pigs is to utilize them for human food but also supply skin, fat and other materials for use as clothing or leather, ingredients for processed foods, cosmetics, and medical use.
3. Breeding - when animals mate and then produce offspring.
Species - Organisms that have lots of characteristics in common, and can mate to produce fertile offspring.
Herd - a social group of certain animals of the same species, either wild or domestic.
Explanation:
4. Bovine - Cattle, Goats, Pigs
Ovine - Sheep
Equine - Horses and other members of the horse family
Which two types of RNA are joined together by base pairing a codon with an anticodon ?
A- tRNA and rRNA
B- mRNA and rRNA
C- tRNA and itself
D- mRNA and tRNA
Answer:tRNA (translate rna) and mRNA(messenger rna).
Explanation:
Practice: Biochemical Reactions Summary
Photosynthesis
Chemical Equation:
Step 1: Light-
Reaction aka
Where:
What:
Why:
Step 2: Light-
Reaction aka
Where:
What:
Why:
Answer:
Explanation:
There are two stages to photosynthesis: Reactions of light and darkness. Light-Reaction takes place in thylakoid membrane.
What is Light-Reaction takes place during Photosynthesis?Autotrophic plants produce their own food through a process called photosynthesis. Sunlight, chlorophyll, CO2, and water are four crucial components needed for this process. It is a response that is light dependent.
In plants and some other creatures, a process known as the "Dark Reaction" harnesses the energy from the sun to change carbon dioxide and water into glucose (a sugar) and oxygen.
Therefore, a sequence of chemical events known as the "Light Reaction of Photosynthesis" are what is needed for the pigment found in leaves, such as chlorophyll, to transform light energy into chemical energy in the form of ATP and NADPH.
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Which statement about US greenhouse gas emissions is supported by the bar graph? Emissions decreased every year between 2005 and 2014. Emissions increased substantially between 2005 and 2014. After peaking in 2007, emissions dropped every year through 2014. After peaking in 2007, emissions went up and down through 2014.
Countries often have records of gas emissions in their county. The statement about US greenhouse gas emissions is supported by the bar graph is that after peaking in 2007, emissions went up and down through 2014.
Greenhouse gas emissions often takes place due to the activities of human. These activities acts as a catalyst to powerup the greenhouse effect, causing climate changes.Recorded data of gas emissions has shown that after it peaked in 2007, reduction is said to be of averaged 1.3% per year but the data of U.S. energy-related CO2 emissions in 2019 shows that it was 1.8% greater than in 1990.
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Answer:
D. After peaking in 2007, emissions went up and down through 2014.
Explanation:
EDGE2021
Postganglionic sympathetic axons are carried from the sympathetic trunk to all spinal nerves through ______.
Answer:
gray rami communicantes
Explanation:
Postganglionic sympathetic axons are carried from the sympathetic trunk to all spinal nerves through gray rami communicantes. The sympathetic nervous system is almost connected to all parts of the body.
What is the nervous system?The nervous system is made up of neurons that are connected to each other and send the message for action to different parts of the body. The whole nervous system of the body is divided into three parts: the central nervous system, the peripheral nervous system, and the autonomic nervous system.
The central nervous system is composed of the brain and spinal cord, while the autonomic nervous system is composed of the sympathetic and parasympathetic nervous systems. The peripheral nervous system includes the nerves of the brain and spinal cord that are derived from these two organs. The sympathetic nervous system activates the majority of the organs in times of danger, whereas the parasympathetic nervous system is associated with rest.
Hence, Postganglionic sympathetic axons are carried from the sympathetic trunk to all spinal nerves through gray rami communicantes.
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How does your body respond to a decrease in blood glucose
Which phrases are true of only the mantle?
made of three layers
has a tarry layer
made of two layers
has a molten outer layer
has a solid outer layer
where do duplicated chromosomes line up during metaphase?
How does your body respond to an increase in the waste products of energy production
Answer:
Energy is delivered to the body through the foods we eat and liquids we drink. Foods contain a lot of stored chemical energy; when you eat, your body breaks down these foods into smaller components and absorbs them to use as fuel. Energy comes from the three main nutrients carbohydrates, protein, and fats, with carbohydrates being the most important energy source. In cases where carbohydrates have been depleted, the body can utilise protein and fats for energy. Your metabolism is the chemical reactions in the body’s cells that change this food into energy.
Most of the energy the body needs is for being at rest, known as the Basal Metabolism. This is the minimum amount of energy the body requires to maintain its vital functions such as breathing, circulation and organ functions. The rate at which energy is utilised for such functions is known as the Basal Metabolic Rate (BMR) and varies based on genetics, sex, age, height and weight. Your BMR drops as you get older because muscle mass decreases.
Optimal energy metabolism requires getting sufficient nutrients from our foods, otherwise our energy metabolism underperforms and we feel tired and sluggish. All foods give you energy and some foods in particular help increase your energy levels, such as bananas (excellent source of carbohydrates, potassium and vitamin B6), fatty fish like salmon or tuna (good source of protein, fatty acids and B vitamins), brown rice (source of fibre, vitamins and minerals), and eggs (source of protein). There are actually many foods that provide an abundant amount of energy, particularly those packed with carbohydrates for available energy, fibre or protein for a slow release of energy and essential vitamins, minerals and antioxidants.
Foods are metabolised at a cellular level to make ATP (Adenosine Triphosphate)
by a process known as cellular respiration. It is this chemical ATP that the cell uses for energy for many cellular processes including muscle contraction and cell division. This process requires oxygen and is called aerobic respiration.
Glucose + Oxygen → Carbon dioxide + Water + Energy (as ATP)
Initially, large food macromolecules are broken down by enzymes into simple subunits in the process known as digestion. Proteins are broken down into amino acids, polysaccharides into sugars, and fats into fatty acids and glycerol—through the action of specific enzymes. Following this process, the smaller subunit molecules then have to enter the cells of the body. They firstly enter the cytosol (the aqueous part of the cytoplasm of a cell) where the cellular respiration process begins.
Hope this helps. ;-]
Explanation:
1. Explain the function of white blood cells in the body.
2.
How is a red blood cell adapted to carry
oxygen and nutrients throughout the body? Explain
3.
What would happen to us if no platelets
are found within the blood again. Explain.
4. Give the general (collective) functions of the blood
Answer:1. White blood cells are part of the body's immune system. They help the body fight infection and other diseases.
2. Red blood cells have adaptations that make them suitable for this.
3. The blood would not clot in case of an injury.
4. Blood supplies essential substances and nutrients.
Explanation: 1. White blood cells are able to recognize viruses and/or infectious germs, which is how they fight off disease/sickness. It is also why we have vaccines. Vaccines put either dead or weakened parts of a germ into your body. Then, the white blood cells recognize it and fight it off the next time it enters your body.
2. They contain hemoglobin, a red protein that combines with oxygen. They have no nucleus so they can contain more of the hemoglobin. they are small and flexible so that they can fit through narrow blood vessels.
3. This will lead to excess blood loss and can even lead to the death.
4. Such as as sugar, oxygen, and hormones to our cells. It also carries waste away from the cells, this waste is eventually flushed out of the body in urine, feces, sweat, and lungs.
Which statement best describes scientists who contributed to the current body of scientific knowledge?
A. they were made up of men and women throughout history of different countries
B. they were mainly ancient philosophers whose theory stood the test of time
C. they were mainly from European countries such as England and France
D. they were wealthy men during the 20th century
Answer:
A
Explanation:
Answer:
A
Explanation:
Which definition is the best for “semipermeable membrane”?
It is a barrier that prevents materials from moving from one side to the other.
It is a barrier that allows materials to move freely from one side to the other.
It is a barrier with tiny openings that let some, but not all, materials pass through.
It is a barrier that helps materials move from one side to the other.
Answer:
C
Explanation:
Semi means partly
permeable means allowing liquids or gases to pass through it
Semipermeable means allowing some, but not all, liquids or gases to pass through it.
Answer:
c) It is a barrier with tiny openings that let some, but not all, materials pass through.
Explanation:
The prefix "semi-" means "some; partially". "Permeable" means "allow to pass through". Using your knowledge of the purpose of the membrane and the meaning of the word "semi-permeable", you would use context to come to the conclusion that the correct answer is c) It is a barrier with tiny openings that let some, but not all, materials pass through.
What are the different variations of genes called?
Answer:
Alleles :)
Explanation:
the cell body of the preganglionic neuron in this figure could be located in the __________.
The cell body of the preganglionic neuron in this figure could be located in
the central nervous system.
Preganglionic neuron are nerve fibers which connect the central nervous
system to the ganglia. This connection help in the relay of impulses
between different components of the nervous system.
All preganglionic neuron are located in the brain or spinal cord which make
up the central nervous system which explains why it's the most appropriate
choice.
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Which macronutrient promotes root growth?
Answer: Phosphorus (P)
Explanation: Phosphorus is one of the important macronutrients of plants which promotes the plant root growth.
Phosphorus in good amount would lead to -
• Extensive roots
• Fewer shoots
• Stunted growth
Whereas if the plant deficits Phosphorus then it would lead to
• Poor root growth
• Few flowers or aborted flowers
• No fruits
What is the relaxed form of dna in a cells nucleus?
Answer:
The relaxed form of DNA that can be found in the nucleus is referred to as chromatin. This form of DNA is observed when the cell is not dividing.
Explanation:
hope this helps
The relaxed form of DNA in a cell's nucleus is called chromatin.
CHROMATIN:Chromatin is a complex of DNA and histone proteins within the cell's nucleus. The DNA is too long to fit into the cell's nucleus, hence, is coiled around proteins called histones. This complex forms the structure called chromatin, which then condenses during the prophase stage of cell division to form a more compact structure called chromosome.Therefore, it can be said that the relaxed or uncondensed form of DNA in the nucleus of a cell is called chromatin.
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Which effect is most likely from a hurricane? damaged homes due to flooding forest fires due to lightning strikes cars sucked in due to a low-pressure center damaged personal property due to hail.
Answer:
A damaged homes due to flooding
Explanation:
Hurricanes cause heavy rains and strong winds. The heavy rain causes water to rise and therefore, homes are damaged by it.
A natural calamity in which a low pressure centered low atmospheric air movement along with strong winds and rain occurs is called a hurricane it is also known as a tropical cyclone.
The effect that most likely occurs due to a hurricane is:
Option A. Damaged houses due to flooding.
The effect can be explained as:
The hurricane can cause storm surge in which the levels of the sea rises than normal and causes high tides that can lead to floods.The heavy rainfalls and typhoons caused by hurricanes lead to floods that damage homes.Hail and forest fires due to lightning strikes are not caused by hurricanes and hence are not affected by the hurricane.Therefore, hurricane causes flooding.
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Imagine a molecule of free glucose in the blood after a large meal. Which of the following statement is/are true?
a. Be converted to fructose-2,6-bisphosphate in a liver cell
b. Become a glycerol backbone in a triglyceride in an adipose cell
c. Become part of a fatty acid chain in a triglyceride in an adipose cell
d. Be polymerized into glycogen in a skeletal muscle cell
e. Be phosphorylated and bind allosterically to glycogen synthase
Answer:
e. Be phosphorylated and bind allosterically to glycogen synthase
Explanation:
The initial step in the pathways that utilize glucose is its phosphorylation in C6. Glucose-6-phosphosate
The statement that is true is phosphorylated and binds allosterically to glycogen synthase. The correct option is e.
What is phosphorylation?Phosphorylation is a biological process in which a phosphate group is added to an organic molecule. Phosphorylation processes include the following:
1) phosphate added to glucose to generate glucose monophosphate
2) Phosphate addition to adenosine diphosphate (ADP) to generate adenosine triphosphate (ATP).
Phosphorylation regulates several biological functions, including cell cycle, proliferation, death, and signal transduction pathways.
ADP-phosphate group of a reactive intermediate with the transfer of a chemical reaction in which ATP is created in substrate level phosphorylation.
Therefore, the correct option is e. Be phosphorylated and bind allosterically to glycogen synthase.
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An organism's genotype is (1 point)
Answer:
an organism's complete set of genes.
Explanation:
Explain why burning of candle is both reversible and irreversible change ?
when you burn a candle you can always take the melted wax once it resolidifies and make a new candle out of it, but it will never be the same candle
i hope this is helps at least a little :]
the flow of ________ into ecosystems occurs in one direction only, while ________ are recycled within the ecosystem itself.
Answer:
The flow of Energy into Ecosystems occurs in one direction only, while Chemicals are recycled within the Ecosystem itself.
Explanation:
Hopefully this was helpful!
Normally dividing cells:
replace damaged or lost cells.
heal wounds.
help tissue and organs grow.
help keep a person in shape.
What causes black holes to form?
The controls the materials that enter and
leave the cell.
Why is farming good for the society? (Economic growth related) please give me scientific questions, I will mark you as brainly. Thank you
Answer:
Agriculture gave people the opportunity to create civilizations, fight hunger and work to combat challenges in population growth and climate change.
Explanation:
Another positive development in farming is the rapid expansion of farmers markets. Farmers markets allow small farmers to interact directly with consumers. The food system remains within the local economy by being locally produced and eliminates the need for long-distance transportation. The opportunity to purchase locally grown food proves invaluable as the demand for it rises.
what is another name for the polymers of carbohydrates?
Answer:
polysaccharide
Explanation:
Which of the following statements about cells is NOT true
Answer:
umm there are no options?
Explanation:
Answer:
What is the answer choices
Explanation:
Why are nucleic acids essential for life
Answer:
Nucleic acids are the most important macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.