what is weather and climate

Answer:

Photosynthesis and respiration are the two essential processes that allow life to sustain on earth. In a way, they are a cycle — plants help humans breathe by providing us with oxygen, and humans help plants "breathe" by providing them with carbon dioxide.

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Answer:

D. The largest trait someone can have

Explanation:

This option makes the most sense to me because the dominant trait is the largest trait you can have, that is used the most often in your genetic code.

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Answer:

.

Explanation:

what is this?? umm-

Answer:

Ecosystem

Explanation:

The living and nonliving contents of the bottle above mentioned make up a particular type of ecosystem.

An ecosystem is a given geographic sector or area where biotic and abiotic factors interact together.

In conclusion, the living and nonliving contents of the bottle above mentioned make up a particular type of ecosystem.

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Answer:

Modern continents hold clues to their distant past. Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together.

This distribution of fossils led to theories that the southern continents were once joined in a supercontinent called Gondwana.

Fossils tell us when and where plants and animals once existed. Some life "rode" on diverging plates, became isolated, and evolved into new species. Other life dispersed to new areas as continents reconnected, oceans narrowed, or chains of volcanic islands formed. Finding identical or similar fossils in areas separated by vast distances were some of the first clues that scientists used to reconstruct past plate movement. This distribution of fossils led to theories that the southern continents were once joined in a supercontinent called Gondwana.

Answer:

Thrombocytes. Thrombocytes (platelets) play an important role in hemostasis, by plugging and repairing damaged blood vessels, thus preventing blood loss. They also participate in a cascade of events that leads to blood clotting by triggering the release of a series of coagulation factors

Answer:

Blood is a connective tissue.it has many cellular components.Thromobocytes or platelets are one of theme.<br> Thrombocytes of platelets are found in blood .There number in the blood is 250000 /cubic mL of blood .They are formed in bone marrow and their life span is one week <br> When an injuiry is caused in the blood vessele,bleeding starts ,and the platelets are disingrated to release the clotting factor 3 called thromboplastin .This in presence of

Ca2+

ions activats prothrombokinase.A series of reaction ultimately occurs which causes blood to clot and plugg the injured blood vessel thus preventing further loss of blood

Answer:producers are organisms that make their own food. Producers create food for themselves and also provide energy for the rest of the ecosystem. Any green plant, like a tree or grass, as well as algae and chemosynthetic bacteria, can be producers. Consumers are organisms that need to eat to obtain energy.

Explanation:

I don't know at all im lost

Natural selection provides the outline of an explanatory theory." Biologists consider it to be a scientific fact that evolution has occurred in that modern organisms differ from past forms, and evolution is still occurring with discernible differences between organisms and their descendants.

Explanation:

For a strand of DNA to form, nucleotides must be linked into chains, with the sugar phosphate groups alternating. DNA is made of the building block chemical called nucleotides. Nucleotides are made up of three main parts, a sugar group, a phosphate group, and some type of nitrogen base. Hope this answers, and is helpful! Have a great day! :))

Answer:

B.

Explanation:

Contains a phosphate group (yellow), nitrogenous base (green), and pentose sugar (blue).

Answer:

A. 200 cells per mm3

Explanation:

Answer:

I hope this helps.

Explanation:

Yeah that looks hard good luck

Answer:

B

Explanation:

A is making oxygen

C is life and death

D is making plants grow

Answer:

b because i did this like last week and i still Remember

Explanation:

Answer:

glacial landforms

Explanation:

Glaciers cause erosion by plucking and abrasion. Glaciers deposit their sediment when they melt. Landforms deposited by glaciers include drumlins, kettle lakes, and eskers.

Answer:

Erosion and Deposition by Ice Key Concept Glaciers shape Earth’s surface by moving rock and sediment. What You Will Learn • As glaciers move, they form a variety of landforms by removing rock and soil. • Glaciers deposit rock material when they melt or retreat. Why It Matters Glaciers have formed many of the landforms on Earth.

Answer:

1.) Sex organs

2.) DNA replication

3.) Sister chromatids

4.) Two identical daughter cells

5.) Late prophase 1

6.) Tetrads

Explanation:

Meiosis is a type of cell division that occurs in living organisms which involves the division of a single cell to produce four cells containing half the original amount of the parent genetic information. An example of organs that enter meiosis is the SEX CELLS.

Mitosis is another type of cell division that leads to the production of two daughter cells which are genetically identical to the parent cell. During interphase before a cell proceeds to division, DNA replication must occur. This is a process DNA uses to make a copy of itself during cell division.

Chromosomes are genetic material which occurs in pairs known as the SISTER CHROMATIDS

PROPHASE in the stage the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells

During late prophase 1 the pairs of homologous chromosomes come together to form two chromosomes and four chromatids, with one chromosome originating from each parent.

Once the chromosomes have formed a pair they are called TETRADS

Answer:

As a rule sound travels slowest through gases, faster through liquids, and fastest through solids. The speed of light as it travels through air and space is much faster than that of sound; it travels at 300 million meters per second or 273,400 miles per hour.

Answer:

Dominant traits will always be expressed if any amount is there. Recessive traits will only be expressed if two are there.

Answer:

If a trait is dominant, then you will only have to have at least one parent with a dominant trait for the offspring to inherit the trait.

If a trait is recessive, then you will only need one parent with a recessive trait for the offspring to be able to inherit the trait.

Explanation:

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Answer:

1. New chromosomes remain attached to cell membrane - Both

2. Proteins check for errors - Both

3. Starts at one place - Prokaryotes

4. Proceeds in two directions - Both

5. Copies of DNA condense into chromosomes that separate - Both

6. Starts at many places - Eukaryotes

Explanation:

The difference between prokaryotic and eukaryotic DNA replications is associated with the origins of replication, that is, the locations where replication starts. While in eukaryotic DNA, the origin of replication occurs in several places along the strands of DNA, replication in prokaryotic DNA has a unique origin of replication.

Replication of a cell refers to the formation of the two alike copies of DNA it is crucial for biological legacy, cell growth and division.

The process of replication in prokaryotes and eukaryotes somewhat contrasts from each other.

1. New chromosomes remain attached to cell membrane - Both in prokaryotes and eukaryotes.

In prokaryotes, the single circular chromosome remains attached to the cell also in eukaryotes chromosomes remain attached to the nuclear envelope.

2. Proteins check for errors - Both in prokaryotes and eukaryotes.

Although the process of formation of proteins is different proofreading occurs in both types of organisms.

3. Starts at one place - Prokaryotes.

Replication in prokaryotes originates from only one place while eukaryotic replication can occur from multiple positions.

4. Proceeds in two directions- Prokaryotes.

Replication in prokaryotes is bidirectional and advances in two directions.

5. Copies of DNA condense into chromosomes that separate - Both in prokaryotes and eukaryotes.

DNA condenses in the nucleoid which later gets separated.

6. Starts at many places - Eukaryotes.

In eukaryotic replication, the DNA strand has multiple sites of origin and the replication can occur at multiple positions.

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Explanation:

excretory system is present in human body which discharge out the waste material time to time. basically when a cell in a body breaks down they produce various waste material like carbohydrates eliminates carbon dioxide while digestive system eliminates through feces. any malfunctioning can cause serious problem like constipitation kidney failure and kidney stones

Answer:

Due to the industrial revolution, smoke caused the environment of the peppered moths to change to a darker/black color. This resulted in a higher prevalence of black peppered moths over white peppered moths.

Explanation:

The dark environment made it so black peppered moths had the favorable trait while the white moths, who previously had the advantageous trait due to old environments being light in color, now had a deletirous trait. Predators could now more easily see the light colored moths, so they were more likely to be killed than the dark colored moths, so more dark colored moths were able to reproduce. This lead to a larger prevalence of dark peppered moths.

During the Industrial Revolution, pollution darkened tree trunks in England. This favored dark moths, causing a decline in lighter ones.

The peppered moth's environment changed due to the Industrial Revolution in England during the 19th century. Prior to the Industrial Revolution, the trees in England were predominantly light-colored, and the majority of peppered moths were also light-colored, or "typica." However, as a result of industrial pollution, the bark of the trees darkened, becoming covered in soot and ash.

This created a selective advantage for the dark-colored peppered moths, or "melanics," who were better camouflaged against the darkened trees. The change in the moth's environment was caused by the burning of coal in factories, which released soot and other pollutants into the air, leading to widespread pollution and industrialization. This phenomenon is often cited as an example of natural selection in action, as the moths adapted to their changing environment through the evolution of their coloration.

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Answer:

The desert is a very harsh place and it can be extremely deadly. The temperature is the main issue and it is very dangerous. So many people have died therefor it is called the Desert of Death.

Explanation:

Answer:

Prokaryotes are single-celled organisms belonging to the domains Bacteria and Archaea. Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles. All prokaryotic cells are encased by a cell wall. Many also have a capsule or slime layer made of polysaccharide.

Answer:

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Explanation:

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Answer:

about 3 pounds

Explanation:

Answer:

The Adult brain weighs 3 pounds.

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