BIOLOGY HIGH SCHOOL

Veins carry blood ________ the heart.

Answers

Answer 1
Answer:

veins carry deoxygenated blood back to the heart.
Answer 2
Answer:

Answer:i think it is to the heart

Explanation:

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Scientists were motoring a meteor headed toward earth. It moved off course , but some pieces of rock entered the earths atmosphere . Which atmospheric layer protected the earth against the danger of the rocks ? A.the troposphere B.the stratosphere C.the mesosphere D.the thermosphere

Answers

The correct option is C.

The atmosphere is made up of five different layers, which are: exosphere, thermosphere, mesosphere, stratosphere and troposhere. The farthest layer is the exosphere while the nearest one to the earth surface is the troposphere. Each of these layers have their specific functions. The mesosphere is the one that is responsible for protecting the earth surface from meteors and asteroids. The mesosphere functions by burning up the greater parts of these substances before they enter the earth surface.

The answer is C. The atmospheric layer that protects the Earth against danger of the rocks is the mesosphere. This layer is above the stratosphere. Meteors are rocks from the space that enter the atmosphere. Meteors burn as they go through the mesosphere layer. However, not all are completely burned some survives and still enter the Earth's surface. These are then called meteorites.

Rephrase the law of conservation of mass in your own words

Answers


the mass of matter remains the same even when undergoing a chemical change because matter can neither be created or destroyed
The law of conservation of mass basically says that nothig can be "created" or "destroyed" but that thigs just under go transformations and change into something else. For example, take a pile of wood. If light it on fire it doesnt disappear, i have just changed it into ash and thermal energy.

Explain how a plant gets and uses
energy

Answers

Answer:

it gets useful energy by the creation of sugar molecules through the process of Photosynthesis.

Explanation:
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Why are some of carl linnaeus's classifications of organisms incorrect

Answers

Some of Carl Linnaeus' classifications of organisms were incorrect because he classified them based off of appearances and actions instead of actual relationships. For instance, bats were classified as birds because they flew, and whales were classified as fish because they had fins and swam underwater.
The mere fact that some of his classifications were off, however, does not reduce the marked effect that it had on the advancement of scientific thought in the present world. His findings have greatly influence the modern classification system in many ways.

Hope that helped =)
Some of Carl Linnaeus' classifications of organisms were incorrect because he classified them based off of appearances and actions instead of actual relationships. For instance, bats were classified as birds because they flew, and whales were classified as fish because they had fins and swam underwater.The mere fact that some of his classifications were off, however, does not reduce the marked effect that it had on the advancement of scientific thought in the present world. His findings have greatly influenced the modern classification system in many ways.

Explanation:
Carl Linnaeus classified organisms on the basis of physical features. In his time, this was accepted. As time went on, he was stated incorrectly with the aid of new discoveries. However, he did facilitate the scientific community in a different way. He classified organisms with their common ancestors.

How does taxonomy help us understand relationships among organisms on earth? What kinds of evidence do scientists use in taxonomy?

Answers

Taxonomy helps us understand relationships among organisms on earth because you can produce a genetic tree diagram which starts from present day animals and goes back to the first early life forms. Scientists will use living organisms and extinct organisms either from fossils, from drawings or from photographs

The anglerfish is a type of saltwater fish with an interesting method of catching prey. It lives deep in the oceans, where both light and food are scarce. A "light" glows on a filament right over an anglerfish's mouth. This glow is created by bacteria that live inside the fish. The bacteria are bioluminescent, which means that they produce light. When other fish see this bright glow—a rare thing in the dark waters—they come close to investigate and eventually become dinner. Anglerfish rely on _________ their food. Options: a. Cultivating b. Defending c. Attracting d. Pursuing

Answers

Answer:

C. Attracting

Explanation:

The "light" attracts prey to the anglerfish.

Other Questions
Bio homework help :)?Two populations of birds with somewhat different coloration live on opposite sides of a peninsula. The habitat between the populations is not suitable for these birds. When birds from the two populations are brought together, they produce young whose appearance is intermediate between the two parents. These offspring will breed with each other or with birds from either parent population, and all offspring of these pairings appear intermediate to various degrees. (use to answer Q 1.) 1.What keeps the two populations separate? behavioral reproductive isolation temporal reproductive isolation lack of hybrid viability spatial reproductive isolation They are already separate species. 2. Three populations of crickets look very similar, but the males have courtship songs that sound different. What function would this difference in song likely serve if the populations came in contact? a postzygotic isolating mechanism b prezygotic isolating mechanism c gametic reproductive isolating mechanism d behavioral reproductive isolating mechanism e two of the above 3. The peppered moth provides a well-known example of natural selection. The light-colored form of the moth was predominant in England before the industrial revolution. In the mid-nineteenth century, a dark-colored form appeared. The difference is produced by a dominant allele of one gene. By about 1900, approximately 90% of the moths around industrial areas were dark colored, whereas light-colored moths were still abundant elsewhere. Apparently, birds could readily find the light moths against the soot-darkened background in industrial areas and therefore were eating more light moths. Recently, use of cleaner fuels has greatly reduced soot in the landscape, and the dark-colored moths have been disappearing. Should the two forms of moths be considered separate species?a. Yes, because natural selection has affected the frequency of the two different forms.b. Yes, because they have completely different coloration.c. Yes, because they are reproductively isolated based on habitat.d. Yes, because they have completely different coloration and natural selection has affected the frequency of the two different forms. e. No.
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