FOR 100 BRAINLZY POINTS I NEED IT NOW What marks the transition between the Precambrian Eon and Phanerozoic Eon?

Question 3 options:

increased meteor impacts


a disappearance of most of the life in the fossil record


an increase in the number and diversity of life in the fossil record


the appearance of land plants in the fossil record

Answer:

The flow of Energy into Ecosystems occurs in one direction only, while Chemicals are recycled within the Ecosystem itself.

Explanation:

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Answer:

D - design a device that can throw an object at least 15 metres

Answer:

D. Design a device that can throw an object at least 15 meters.

Explanation:

First of all, the object shown as you may be able to tell, look like a catapult. It also shows the top end of it holding a ball, getting ready to launch it. It then shows a line of the ball traveling after being launched. The balls land of the ground at 15 meters. From this iformation you look at the options:

A. Design an object that is 10 meters tall.

No, because 10 meter is just the highest point of the ball being launched.

B. Design a vehicle that can travel across a 10-meter feild.

No, because it is the ball that is traveling, not the catapult.

C is about a vehicle traveling again, so eliminate that too.

D. Design a device that can throw an object at least 15 meters.

This describes exactly what we soo in the picture. Meaning D is correct.

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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

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.

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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Answer:

involuntary muscle

Explanation:

Involuntary muscles are those that cannot be controlled by will or consciousness and are frequently associated with organs that contract and relax slowly and regularly. Because there are no striations when viewed under a microscope, involuntary muscles are also known as smooth muscles or non-striated muscles.

Answer:

C

Explanation:

if he had the traits DD or Dd he would have dimples

Answer:tRNA (translate rna) and mRNA(messenger rna).

Explanation:

Answer:

A

Explanation:

Answer:

A

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Answer:

Alleles :)

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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.

Answer:

endoplasmic reticulum ( ER)

Explanation:

edg im guessing

Answer:

an organism's complete set of genes.

Explanation:

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:

Therefore, hurricane causes flooding.

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Symaptric speciation is the formation of new species in populations that live in the same geographic area, while allopatric speciation occurs when the population is separated by a geographcial area. So, according to this: The difference between the sympatric speciation and the allopatric speciation is that sympatric speciation involves a behavioral barrier, while allopatric speciation involves a physical barrier.

Answer: Because muscle cells cannot get oxygen fast enough to meet their energy needs through aerobic respiration.

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.

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.

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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Answer: 21,000x24= 504,000 kilometers per hour.

Explanation: Hope that helped you.

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.

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Explanation:

Answer:

D N A!!!!

Explanation:

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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.

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:

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The relaxed form of DNA in a cell's nucleus is called chromatin.

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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Answer:

polysaccharide

Explanation:

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

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Answer:

Its ether the last option or the first one.

Explanation:

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Answer:

the answer is Destructive interference

Explanation: