how do the x and y chromosomes differ

Answer & Explanation:

The circulatory system, also called the cardiovascular system transports oxygen-rich blood from the heart to the lungs. The heart then circulates oxygenated blood throughout the body via arteries. The veins return oxygen-depleted blood to the heart, restarting the circulation process.

Answer:

c. a table remains motionless in a classroom

Explanation:

Human activity would likely decrease the salamanders' survivability is the growth of cities, which has led to greater use of water by people and increased problems of water pollution and sludge buildup.

Reducing the flow of water from springs is the biggest threat to the survival of Salamandra San Marcos and other animals and plants dependent on the springs. The growth of cities has led to greater use of water by people and has increased problems with water pollution and sludge buildup. The introduction of non-native species is also a threat because they can destroy aquatic vegetation, attack endangered animals or compete with them for food.

With this information, we can conclude that human activity would likely decrease the salamanders' survivability is the growth of cities, which has led to greater use of water by people and increased problems of water pollution and sludge buildup.

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Answer:

For those who are new to growing orchids or those who love the beautiful blooms, the Phalaenopsis orchid is considered to be the best orchid for beginners. Our online video will help you pick the perfect orchid for your home. Phalaenopsis orchids are also known as “moth orchids” for the shape of their petals.

I have a Phalaenopsis Orchid in my house, it's very easy to take care of. Like a fish, but fish cost more money.

Explanation:

Water and sun, that's all there is to it.

Answer:

D

Explanation:

Water has a fairly high specific heat, which means that enough heat must be added to it to break the hydrogen bonds between the molecules, allowing them to move freely from each other and escape the water's surface.

Answer:

mushroom

Explanation:

mushroom

If the egg has not been fertilized, the increase in progesterone and decrease in estrogen, forcing the egg to be expelled.

It is known that in the premenstrual period there is a drop in serotonin levels. The second important factor to cause PMS is the hormonal change that occurs in the second half of the menstrual cycle, with an increase in progesterone and a decrease in estrogen.

With this information, we can conclude that if the egg has not been fertilized, the increase in progesterone and decrease in estrogen, forcing the egg to be expelled.

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The  trait would the fossil most likely have is a curve in the lumber region of the spine.

Fossils are remains or traces of animals and plants preserved in rocks. Remains are parts of an animal (eg bones, teeth, scales) or plant (eg trunks) and traces are evidence of its existence or activities (eg footprints).

From the fossils it is possible to see the evolutions that the animals suffered in this case it was a curve in the lumber region of the spine.

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Answer:

b. a curve in the lumbar region of the spine

Explanation:

Answer:

some of the animals that feed on the grasshoppers will die

Explanation:

if they do not have the regular supply of food, they will die of hunger

Answer: glutamate

Explanation: Given the cascade of events leading to ischemia-produced brain damage, it has been suggested that glutamate antagonists administered immediately after a stroke might reduce the subsequent development of brain damage.

Answer:

b. diverted streams for irrigation

Answer:

Precipitation or Fair Weather

Explanation:

Of these choices, a meteorologist is most likely to predict precipitation.  Hurricanes and tornados are relatively rare occurences.  

Answer:

frost

Explanation:

Frost is the deposition of water vapour from humid air or air containing water vapour on to a solid surface. Solid frost is formed when a surface, for example a leaf, is at a temperature lower than the freezing point of water and the surrounding air is humid.

In sub-freezing air, water vapour changes directly to ice without first becoming a liquid. This is how frost and hoar frost form on the ground or other surfaces. Another example is when frost forms on a leaf.

Answer:

Electromagnetic spectrum consists of radio waves, microwaves, infrared waves, visible spectrum, ultraviolet waves, X-rays and gamma rays. It does not include alpha rays.

Answer:

They can be made into one compound sentence with a semicolon alone between the two independent clauses

Explanation:

you can use a semicolon to separate two ideas (two independent clauses) that are closely related

Answer:

Ethyne is useful for artificial ripening and preservation of fruits. It is useful in acetylene lamps to generate light. Ethyne is used to prepare various organic compounds. It is also useful to manufacture important organic compounds like acetic acid, acetaldehyde, ethyl alcohol and polymers like PVC, etc.

Explanation:

Since ethyne burns with a very hot flame, one of its most notable applications is in oxyacetylene gas welding and oxyacetylene gas cutting. When ethyne is subjected to combustion with oxygen, the flame created is known to have a temperature of roughly 3600 Kelvin.

Question: "Is platypus a type of fish?"

Explanation: The platypus is classed as a mammal because it has fur and feeds its young with milk. It flaps a beaver-like tail. But it also has bird and reptile features a duck-like bill and webbed feet.

Answer:

yes done to explaine in down

Explanation:

ty for rhe points

Potassium is most likely to be found with 6.25% of its original amount in 6 billion years because the half life of Potassium-40 is 1-1.5 billion years in graph. Thus the correct option is C.

If it half in 1 to1.5 billion years = 50% gain

1-1.5 billion years = 25%. gain

If we do that 2 more times we will get 12.5% and then 6.25% gain.

Half life is defined as the time required for half of the atoms of a radioactive substance to become disintegrated.

Our estimate is about 1-1.5 billion years so repeating that about 4 times we get around 4-6 billion years for it to gain 6.25%.  From this it can be concluded that Potassium-40 as since it comes the closest to remaining at 6.25% its original amount after approximately 6 billion years.

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Sulfates are considered secondary pollutants because they result from the transformation of primary pollutants.

Reason: Primary pollutants are pollutants emitted directly into the environment while secondary pollutants are emitted after they are formed in the atmosphere.

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The population of reefs reduces drastically if there are no sea urchins since lionfish use them as a source of food. That way, the lionfish began feeding on the reef itself.

Answer:

Provide protection and structure

Explanation:

Answer:

South Korea is better because people believe that South Korea is more powerful even though the North has a stronger army.

       While the North communist dictatorship the South offers its citizens far more freedom than the north does. (Fact: NK is one of the 5 communist countries in the world).

                          Lastly, South Korea is a safe place to visit and many people prefer it over the North.

any kind of energy is produced by translation

Answer:

Blood is prevented from backflow by valves in veins.

Explanation:

Seafood watch has made several unsustainable fishing practices illegal, is a true statement.

Seafood Watch is a program sponsored by the Monterrey Bay Aquarium; recommendations for which seafood to buy or avoid; consumers and businesses to become advocates for "ocean-friendly".

Seafood Watch has had an immense influence on decisions regarding illegal fishing practices and has helped design sustainable seafood environments due to their lists of seafood that should be eaten without worries.

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Answer:

False.

Explanation:

Just took the test. Also... It is false because Seafood Watch is not a legal authority and does not have the power to make fishing practices illegal. Seafood Watch is a program run by the Monterey Bay Aquarium that provides recommendations and guidance on sustainable seafood choices based on scientific assessments of fisheries and aquaculture practices. It aims to inform consumers and promote sustainable fishing practices but does not have legal authority to enforce regulations or make fishing practices illegal. That responsibility lies with governmental bodies and regulatory authorities.

Answer:

Esquites share the same ingredients with elote fresh corn, mayonnaise, cilantro and chili powder. The combination is sublime