this is about environmental systems ​

Answer:

Water

Explanation:

It is 70% of a cell's weight.

Answer:

The temperature

Explanation:

In an experiment, the factor we meadure is called the independent variable. Here, temperature of an alligator's egg determines whether the alligator is male or female, so temperature is the independent variable.

Answer:

Cacti evolved in the way that they are able to hold watter within themselves and their cells.

Explanation:

Cactuses have evolved in such a way that their roots and leaves hold water as long as possible. This gives the capability of cacti to meet this environmental pressure in order to conserve water.

Under desert climates, cacti have various numerous unique adaptations in order to facilitate their survival in the same habitat. It includes its roots, leaves as well as stems that enable it to thrive in desert environments.

These adaptations include: Leaves are reduced to spines to reduce water loss through transpiration. Wide and deep roots absorb rainwater on the surface and reach the underground deep water.

Therefore, cactuses have evolved in such a way that their roots and leaves hold water as long as possible.

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Answer:

gas, 78% of the atmosphere

Explanation:

Answer:

Image result for Define nitrogen but it has to be only five words

nitrogen (N), nonmetallic element of Group 15 [Va] of the periodic table. It is a colourless, odourless, tasteless gas that is the most plentiful element in Earth's atmosphere and is a constituent of all living matter. Fast Facts.

Explanation:

I really hope this helped you. :)

Answer:

4. predator

5. prey

6. interspecific

Answer:

predator, prey,  intraspecific

Explanation:

Answer:

Immune and Lymphatic Systems

Explanation:

Answer:

true

Explanation:

Answer:

For involuntary actions (reflexes) the information is first detected in the sensor and travels along sensory neurons to the spinal cord. Once the action potential reaches the spinal cord, the information is transmitted across the synapse to the motor neuron. for voluntary actions,

movements are commanded by the motor cortex, the zone of the cerebrum located behind the frontal lobe. The motor cortex sends a neural message that moves through the brain stem along the spinal cord and into the neural network to the muscle being commanded.

Answer:

c and b

Explanation:

Answer:  Nitrogen

Explanation:

Harmful algal blooms can occur in lakes, reservoirs, rivers, ponds, bays and coastal waters, and the toxins they produce can be harmful to human health and aquatic life. Harmful algal blooms are mainly the result of a type of algae called cyanobacteria, also known as blue-green algae.

The answer is nitrogen, nitrogen helps algae grow and when it grows in excess it takes away the dissolved oxygen from the water which kills off fish, which puts more nitrogen in the water making algae grow even more until it snowballs and destroys the aforementioned ecosystem.

you could chose to describe the first graph as any of the following phrases:

‘curved graph’

‘intercept on y-axis’

‘as x increases, y increases’,

‘y increases slowly at first, then more rapidly, then slows down again’ and ‘reaches a maximum level’.

you can chose to describe the second graph as any of the following phrases:

'gradually increases, then rapidly increases in a short period of time"

Answer:

Exercise can boost energy levels by raising energy-promoting neurotransmitters in the brain, such as dopamine, norepinephrine, and serotonin, which is why you feel so good after a workout. Exercise also makes muscles stronger and more efficient, so they need less energy, and therefore conserve ATP.

Explanation:

Answer:

Hope it helps

Explanation:

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Glycolysis and the citric acid cycle both produce carbon dioxide, which is a crucial byproduct (Krebs cycle). This oxidized carbon is a metabolic waste product that must finally be eliminated through transit to the lungs and subsequent exhalation into the environment.

What is the purpose of Krebs cycle?

Pyruvate is converted into three different products by the Krebs cycle: carbon dioxide, a little quantity of ATP, and the reduced molecules NADH and FADH.

Each acetyl group adds two carbon atoms to the citric acid cycle. On each cycle turn, two carbon dioxide molecules are emitted.

However, these do not include the identical carbon atoms that the acetyl group contributed on that turn of the circuit.

Therefore, carbon dioxide is constantly given off during the Krebs cycle.

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Answer:

Hello that's the answer and thank you

Explanation:

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Xylem and phloem are the types of tissues found in the vascular bundle of plants.

In animals, the bloodstream is used to transport nutrients throughout the body. This function is carried delivered via the vascular system, a network of tissues and fibers in plants.

The xylem and the phloem are the two primary tissue types that make up the vascular system. Water and dissolved minerals are distributed upward through the plant through the xylem, first from roots to the leaves. Food is transported from the leaves to the roots through the phloem.

A mature woody stem or root's principal component is made up of xylem cells. They are arranged vertically in the heart of the plant, creating a column that transports water and minerals taken up by the roots up the stem and onto the leaves.

Transporting the food that the leaves have produced downward via the stem is a similar network of phloem cells that line the outside of the xylem.

Therefore, the xylem and phloem are present in the vascular system of plants.

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The scientific community disagrees about the rate of global climate change (Option A). The occurrence of global warming is widely accepted by the scientific community.

Global climate change refers to the fluctuations in temperatures worldwide.

Global climate change is caused by the use of fossil fuels such as oil, coal and natural gas, which are known to be associated with the increasing concentration of greenhouse gases in the atmosphere.

The greenhouse gases include, among others, carbon dioxide (CO2) and methane (CH4).

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Answer:

a

Explanation:

Oxidation is described as the loss of electrons and energy by a molecule.

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Answer:

true

Explanation:

Answer:

it's a carbohydrate

Explanation:

Sucrose (which is known as a table sugar) is a very common disaccharide, which is made up of the monomers glucose and fructose.

This happened due to the low air pressure in the highest areas of Colorado, which made hard the intake of air.

Air pressure is fewer as the elevation in an area increases. In other words, the air over us is less, so the pressure that it makes is lower.

Miss Westbrook's heart rate and breathing sped up due to the low air pressure that she experimented with when ascending or when skiing in Aspen, which is very elevated. As the pressure is lower, not much air can enter the lungs, so her brain increases the breath rate to obtain the same amount of oxygen that her body had when breathing normally on the Bay. As there is not enough oxygen in her body, the brain also increases the heart rate to match the rhythm of the breath and deliver the scarce oxygen to the different parts of the body.

In conclusion, the increase in the heart and breath rate happens due to the low air pressure in elevated areas that makes our body find ways to compensate for the decrease in the amount of oxygen that our body can take.

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Answer: I do

Explanation: I have done them all but my horse likes barrel races the best.

Answer:

me!!!!

Explanation:

yes i do barrels

Answer:  Both

Explanation:

KE can be solve using the formula:

ke = 0.5 mv^2

where m is the mass of the object

v is the velocity

ke = 0.5 ( 2 kg ) ( 5 m/s)^2

ke = 25 J

the GPE can be solved using the formula:

GPE = mgh

where m is the mass

g is the acceleration due to gravity ( 9.81 m/s^2)

h is the height

GPE = ( 4 kg)(9.81 m/s^2)( 40 m)

GPE = 392.4 J

I hope this helps, have a great day!!

Answer:

b? hope this helps have a nice day!

Renewable source of the energy is defined as the energy collected from renewable sources like wind, water, and light, which can be replenished on the Earth over time.

The given statement is False.

Renewable energy accounts for 20% of the total utility scale. The majority of the energy is derived from non-renewable sources. The non-renewable source of energy cannot be replenished over time and can be exhausted after certain years.

Renewable resources like, wind and waves are used to obtain energy by applying scientific equipment and technologies. The output of renewable sources of energy is lesser as compared to non-renewable sources of energy.

Thus, non-renewable sources of energy account for the majority of energy production.

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Answer:

F

Explanation:

There are different types of Association. New York Property Insurance Underwriting Association is known to be a pool of insurance companies in New York State that writes fire insurance policies for homeowners

An underwriters association is known to be an industry group set up for professionals in the insurance underwriting profession.

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Answer:

Crossing over

Explanation:

for variations which is one of the most important characteristic for Meosis