Answer:
b
Explanation:
they are fighting for the same things so it would be competition
What kind of organisms existed in the past?
How did organisms move about? are some testable questions hat could be used to further investigate the topic of using the fossil record to identify changes in life on earth.
- Fossils are the remains of extinct plants and animals that have been encased in layers of rock.
- The existence of fossil records demonstrates how living things have altered or evolved over time.
- The specific order in which these species have lived has been identified by paleontologists. For instance, older rocks contained simpler species, while younger rocks contained complex life.
- Existence of species with transitional traits that are placed in sequential stratigraphic order is one pattern in the fossil record.
- This indicates that the fossil record demonstrates minute changes in the structures of creatures across time, supporting evolution.
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Answer:
A regulator gene, regulator, or regulatory gene is a gene involved in controlling the expression of one or more other genes. Regulatory sequences, which encode regulatory genes, are often at the five prime end to the start site of transcription of the gene they regulate.
It is the process in which an embryo, and later a fetus, develops and grows.