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How many cells does a organism have?
The number of cells in an organism constantly changes. Cells die and are replaced by new cells all the time. As I type, cells on my fingertips die, fall off and new cells replace them. There are far too many cells to count in any organism, and they are constantly changing. Here's an interesting fact- if one of the cells on the tip of your nose was the size of a football pitch, your head would be the same size (roughly) as the world!
Is the scientific theory unchangable?
No, scientific theories change all the time as new observations present new data, new theories are formed to explain the observations and are checked to see if they predict correctly the outcome of new experiments.The scientific method remains the same.
What happens when a sperm cell and an egg cell unite?
The head of the spermatozoa buries itself in the egg and the tail drops off. At the exact same moment the surface of the egg changes to prevent any other sperm from entering it. The coating of the head of the sperm then opens and the DNA is released and the egg becomes like a new cell with a new set of DNA in addition to its own. The egg then begins to split and split again, and again and again until a human is created.
What is Formed when two atoms bond covalently?
i am doing the same worksheet right now.... Molecule
Explain how scientist tink most magma is formed?
Magma is formed from the subduction and melting of cold, dense, wet oceanic crust at some convergent plate margins. The moisture in the rock assists in the melting of the crust and the rock surrounding it. Magma is also formed at hot spots in the mantle where hot material undergoes decompression melting as it rises. Decompression melting also occurs at the mid-ocean ridges where new oceanic crust is formed from rising mantel rock.
What is formed when fertilization is occurs?
a zygote
What structure is formed when fertilization occurs?
When fertilization occurs, a structure called a zygote is formed. This is a single cell with a full set of chromosomes, resulting from the merging of the egg and sperm. The zygote will eventually divide and develop into a new organism.
When an organism of many cells breaks up into two or more parts and these parts survive to produce a new organism reproduction occurs by .?
Fragmentation occurs when an organism of many cells breaks into two or more parts and these parts survive to produce a new organism.
What occurs when an organism grows new body parts to replace lost ones?
regeneration
Where no new substance is formed and no rearranging of atoms occurs?
It is a physical change
Are new molecules formed when a chemical change occurs?
ye s there are
When a physical changes occurs new substance are formed?
False. In a physical change, the substance remains the same even though there may be a change in appearance or state. The molecules of the substance do not rearrange themselves to form a new substance.
What is formed when a chemical change occurs?
When a chemical change occurs, new substances are formed with different chemical properties than the original substances. This process involves the breaking and forming of chemical bonds to create new molecules.
What kind of change occurs with a new substance being formed?
Chemical change.
How does a new cell formed by mitosis formed with the original cell?
its the same
When an organism moves into a new environment and eats the same food as an organism already present can create what?
predation
What reaction occurs when the bonds of the reacting compounds are broken and new combinations are formed?
A chemical reaction occurs when the bonds of the reacting compounds are broken and new combinations are formed. This process involves the rearrangement of atoms to form new molecules with different chemical properties.
