HELP HELP PLEASE!!!!!!!

Answer:

Parkinson disease is caused by mutations in the PARK7, SNCA, PINK1, PRKN, or LRRK2.

Explanation:

These are all genes that can be affected.

Answer:

I think the answer is C. Plate Boundary

Explanation:

Answer:

for living beings to drink, to grow crops, a place for living for fishes and such

Answer:

For us to drink so we can survive, for fish to swim liek lakes and stuff , and so crops can grow

Explanation:

Answer:

Having gills, or the ability of gills.

Explanation:

Our lungs can't filter out water and use the oxygen in the water, sadly.

And, we can't hold our breath for that long, compared to other mammals (the only way that we can hold our breath for a long time is if we breathe in pure oxygen).

Answer:

It equals the number of protons and electrons.

Explanation:

Answer: Option C.

The development of the two types of forest has negatively affected the populations of shrubs by decreasing the amount of space available for shrubs

Explanation:

The development of the two types of forest has negatively affected the populations of shrubs by decreasing the amount of space available for shrubs because pine and hardwood are huge trees bigger than shrubs and occupy space. As they occupy space the received most of the sunlight, their roots is very extensive and draw water and nutrients from the soil which makes these resources not very much available for shrubs and hence it drastically affected the populations of shrubs. Because of their heights, wideness and big leaves, little sunlight gets to shrubs and hence shrubs photosynthesis is reduced.

The removal of one seral stage to another is called ecological succession.

The place which is used by the shrubs is now used by the tree and give the competition for the land. The development of the two types of forest has negatively affected the populations of shrubs by decreasing the amount of space available for shrubs.

As they occupy space they received most of the sunlight, their roots are very extensive and draw water and nutrients from the soil which makes these resources not very much available for shrubs, and hence it drastically affected the populations of shrubs.

Because of their heights, wideness, and big leaves, little sunlight gets to shrubs, and hence shrub's photosynthesis is reduced.

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Answer:

Hello!!! Princess Sakura here ^^

Explanation:

The answer is Choice C. They are way smaller than eukaryotic cells and most prokaryotic cells are bacteria and bacteria are really small.

Answer:

cells

Explanation:

Answer:

It provides evidence for evolution and adaptations

Explanation:

Answer:

goggles not being worn, hair not pulled back, getting off task, puddle on floor, not paying attention

Explanation:

there is five, I could not find 10, but I hope this helps.

Answer:

Well The Diversity will decrease.

Explanation:

If the Grass Is Toxic to the Rabbit than the rabbits will either die from eating the grass, or they will stop eating it and need to find a new food source. this will lead to the to the rabbits that are resistant to the toxic grass being able to reproduce more and therefor becoming more abundant.

Answer:

The Law of Conservation of Mass.

Explanation:

The reasoning behind this is that when the chemical equation is balanced, so is the amount of mass. We make sure that the chemical equation is balanced to ensure that the law of conservation of mass is conserved. This is why we add coefficients to the beginning of reactants and products to make sure that the mass of the reactants combined is the same amount of mass of the products combined.

Answer:

The Law of Conservation of Mass!

Explanation:

Answer:

Digestion starts with the sight, thought, or smell of food. When the brain anticipates an incoming meal, the vagus nerve sends a message to the stomach causing the release of acetylcholine. The binding of acetylcholine to G cells in the stomach starts the secretion of gastrin and, in combination with acetylcholine and histamine, stimulates parietal cells in the gastric glands of the stomach body to start secreting hydrochloric acid (HCl).

Explanation:

Answer:

Yes

Explanation:

cause nothing is created or lost it is just cycled.

Yes, the carbon dioxide molecules existing today will be the same carbon dioxide molecules in a million years because the matter is not created or destroyed.

Carbon dioxide (CO2) is a colorless gas with a sour taste and a little harsh odor. It is one of the most significant greenhouse gases associated with global warming, but it only makes up a small portion of the atmosphere on Earth (roughly 3 volumes per 10,000).

It is produced during the combustion of carbon-containing materials, fermentation, and animal respiration, as well as during the photosynthesis of carbohydrates by plants.

The so-called greenhouse effect is caused by the gas because its presence in the atmosphere prevents part of the radiant energy that Earth receives from being reflected back into space.

In the industrial setting, it is recovered for a wide range of uses from flue gases, by-products of the hydrogen-preparation process for ammonia synthesis, lime kilns, and other sources.

Therefore, the same carbon dioxide will exist in a million years as today.

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Answer:

This cell is a prokaryotic cell

Answer:

Prokaryotic

Explanation:

It has pili, the little hair looking things, on the outside. eukaryotic cells don't have that.  also, if you don't believe me, search up prokaryotic cells, click on images, and this exact picture pops up.

Answer: The room temperature thermal energy is about 2.5 KJ/mol, where areas hydrogen bond energy is in the range of 6-15 KJ/mol. So it must not only for thermal fluctuations. (please be specific with reference)

Explanation:

Answer:

The mass number (symbol A, from the German word Atomgewicht [atomic weight]),[1] also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. It is approximately equal to the atomic (also known as isotopic) mass of the atom expressed in atomic mass units. Since protons and neutrons are both baryons, the mass number A is identical with the baryon number B as of the nucleus as of the whole atom or ion. The mass number is different for each different isotope of a chemical element. Hence, the difference between the mass number and the atomic number Z gives the number of neutrons (N) in a given nucleus: N = A − Z.[2]

The mass number is written either after the element name or as a superscript to the left of an element's symbol. For example, the most common isotope of carbon is carbon-12, or 12

C

, which has 6 protons and 6 neutrons. The full isotope symbol would also have the atomic number (Z) as a subscript to the left of the element symbol directly below the mass number: 12

6C

.[3]

Answer:

Yes, we need it to survive, also its in air, we wouldn't be able to breath without it. But most importantly we need to drink to survive

Answer: One positive integer is 5 more than the other.  When the reciprocal of the larger number is subtracted from the reciprocal of the smaller the result is 5/14. Find the two integers.

Example: The difference between the reciprocals of two consecutive positive odd integers is 2/15. Find the integers.

Work-Rate Problems

There are two equivalent formulas to choose from when solving work-rate problems. If two people are working together on a job then their work rates add and they can perform the job working together in a shorter amount of time. If we let  = the time it takes a person to complete a task then his work rate is 1/. In other words, he can complete the 1 job in  number of hours. If we let  = the time it takes a second person to complete the task and  = the time it takes for both people working together we get the following work-rate formulas:

Example: Bill’s garden hose can fill the pool in 12 hours.  His neighbor has a hose that can fill the pool in 15 hours.  How long will it take to fill the pool using both hoses?

Example: Joe can complete his yard work in 3 hours by himself.  If his son helps it will only take 2 hours working together. How long would the yard work take if his son was working alone?

Example: Norm and Cliff can paint the office in 5 hours working together. Being a professional painter, Norm can paint twice as fast as Cliff. How long would it take Cliff to paint the office by himself?

Work-Rate Problem: One small water hose takes twice as long to fill the basin as the larger water hose. If the two hoses working together take 40 minutes to fill the basin how long would it have taken each hose to individually fill the basin?

Work-Rate Problem: Joe can texture and paint a room in 8 hours working alone. It would take Bill 6 hours to do the same job. How long will it take them to complete the job working together?

Work-Rate Problem: Two printers, working at the same rate, work together with printing payroll checks for 4 hours before one breaks down. The other takes 3 more hours to complete the job working alone. How long would it have taken only one printer to complete the job?

Uniform Motion Problems (Distance Problems)

We have set up uniform motion problems using the formula  =  *. For the following motion problems, we will need the equivalent formula / =  to set up the equations.

Example: The first leg of Mary’s road trip consisted of 120 miles of traffic.  When the traffic cleared, she was able to drive twice as fast for 300 miles. If the total trip took 9 hours, then for how much time was she stuck in traffic?

Example: A passenger train can travel 20 miles per hour faster than a freight train.  If the passenger train can cover 390 miles at the same time it takes the freight train to cover 270 miles, how fast is each train?

Example: Billy rode his skateboard 24 miles to his grandmother’s house for the day. It was a rough ride so he borrowed his grandmother’s bicycle for the return trip. Going twice as fast on the bicycle the return trip took 2 hours less time.  What was his average speed on the bicycle?

Example: Brett lives on the river 45 miles upstream from town.  When the current is 2 miles per hour he can row his boat downstream to town for supplies and back in 14 hours.  What is his average rowing speed in still water?

Explanation:

Answer:

Median is the average and mode is the same value

Explanation:

Answer: adjective. Botany (of an ovary) having two carpells.

Answer:

That looks hard, search on google.

Explanation:

Answer:

Secondary succession is a process in which a given area is disturbed, being re-colonized by other organisms following this process.

Explanation:

Secondary succession steps:

1- An area suffers a disturbance (e.g., fire, flood, earthquake, etc).

2-The process of disturbance destroys the food chain by removing primary producers (e.g., plants)

3- The vegetation grows back (i.e., first grasses and after higher trees). This process is known as recolonization  

The secondary succession can regenerate an ecosystem in less than 50 years after disturbance. The first species re-established during secondary succession are the animals capable of living in disturbed habitats.

Secondary succession refers to the re-grow of species and the establishment of new ones in areas where a perturbation occurred leaving fertile good soil.

---------------------------------

Succession is a term used to refer to colonization and subsequent changes.  

Colonization drives the establishment of individuals, populations, species, or bigger groups in areas where they were absent before.

When talking about succession, we refer to changes produced in the composition and structure of communities after a perturbation.

When a perturbation occurs -like fires, floods, earthquakes- and removes part or all of the aerial vegetable life forms, we talk about secondary succession.

In secondary succession, after the perturbation occurrence, the soil remains good and fertile, carrying viable spores, seeds, and roots of surviving species.

With time these species emerge and re-grow, colonizing the area. Also, new species can arrive at the open space, establishing there for the first time.  

So, step by step,

1) A perturbation must occur in a community.

2) The perturbation damages or eliminates aerial parts of vegetable species. But the soil, which remains fertile, managed to protect seeds, spores, and roots of the species that used to live in these areas.

3) With time, these species regrow, and new species arrive in the area.

4) A new community emerges.

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Answer:

If all bulbs are connected through a single wire, (or connected to each other throught a single wire then to the battery) then if one is removed the rest will receive no current and go out.

Explanation:

Answer:

false

Explanation:

"Electrons are the "material" of the charge that is flowing. Therefore, current can never cause a metal object to become positively or negatively charged, because the net number of electrons in the metal object will never change due to current flow."

Answer:

Both organs are made up of only one type of protective dermal tissue.

Both organs are responsible for the exchange of oxygen and carbon dioxide gases.

Explanation:

Answer:

Explanation:

A plant leaf is an organ. In what way is a human lung similar to a plant leaf? Both organs are made up of only one type of protective dermal tissue. Both organs are responsible for the exchange of oxygen and carbon dioxide gases. When you think about it they both need to breathe. You can say this and expand it more

Answer:

C. a nebula

Explanation:

a supernova is when it explodes and then it turns into a black hole

Answer:

C. Carbon monoxide

Explanation:

Carbon monoxide doesn't directly affect the climate directly, it absorbs & increases the impact of greenhouse gases.

Answer:

Photosynthesis is when plants use the sun to create sugars, which are like food to the plant.

Explanation: