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AnnZ [28]
3 years ago
8

Fill in the blanks to complete each statement about the age of Earth. According to scientific evidence, Earth is approximately 4

.6 billion years old. Scientists used fossils and rocks dating to determine Earth’s age.
Biology
1 answer:
Dafna11 [192]3 years ago
4 0

Answer:

where are the blanks???

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Please help me i don’t understand
Eddi Din [679]
1. Biogeography, the study of the geographic distribution of plants, animals, and other forms of life. It is concerned not only with habitation patterns but also with the factors responsible for variations in distribution.

2. weathering and other natural forces break down the substrate, rock, enough for the establishment of certain hearty plants and lichens with few soil requirements, known as pioneer species. These species help to further break down the mineral-rich lava into soil where other, less hardy species can grow and eventually replace the pioneer species. In addition, as these early species grow and die, they add to an ever-growing layer of decomposing organic material and contribute to soil formation. This process repeats multiple times during succession. At each stage, new species move into an area, often due to changes to the environment made by the preceding species, and may replace their predecessors. At some point, the community may reach a relatively stable state and stop changing in composition. However, it's unclear if there is always—or even usually—a stable endpoint to succession.

3. I don’t have the video so I’m going to take. Wild guess. Just look up types of finches

4. Broadly speaking, different species are unable to interbreed and produce healthy, fertile offspring due to barriers called mechanisms of reproductive isolation.
These barriers can be split into two categories based on when they act: prezygotic and postzygotic.

I tried my best hope this helps :)
6 0
3 years ago
Why do scientists monitor the effect of each method
Fiesta28 [93]
The answer is B since climate change is already a huge issue in today’s society
4 0
2 years ago
Green lizards were observed in the region in the image. Changes in the geography of the region caused the formation of a stream,
Elden [556K]
The correct options are as follows"
1.B.
Postzygotic isolation is a type of reproductive isolation which keeps species from mating with each other as a result of the differences that developed between them when they are separated by physical boundary. In the question given above, the lizard specie has been separated by the formation of a stream which divide the region into two.
2.B.
Allopatric speciation refers to the mode of speciation that occur when biological population of the same specie become isolated from each other to an extent that it interferes with genetic interchange. It usually occur as a result of change in the environment.
6 0
3 years ago
Read 2 more answers
Extinction is the term used when all members of species
mixer [17]
Extinction is the term used when all members of a species dies and is never seen again

hope this helps if not just let me know
4 0
3 years ago
Name the cell process that this exercise represents
Sonbull [250]
What exercise? Post a picture of it.
6 0
3 years ago
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