Studying plant movement uncovered some specific behaviors such as irritability in plants as plants were observed to move in response to stimulus.
<h3>What are the characteristics of living things?</h3>
Living things are things that have life in them.
Plants and animals are living things.
The characteristics of living things include:
- movement
- respiration
- reproduction
- sensitivity or irritability
- excretion
- growth
- nutrition
Certain attributes of living things were not attributed to plants earlier such as sensitivity.
However, studying plant movement uncovered some specific behaviors such as irritability in plants as plants were observed to move in response to stimulus.
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Alpha helices and Beta pleated sheets make up the secondary structure of protein.
prophase
Further genetic variation comes from crossing over, which may occur during prophase I of meiosis. In prophase I of meiosis, the replicated homologous pair of chromosomes comes together in the process called synapsis, and sections of the chromosomes are exchanged.
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Answer:
Genetic Mutation
Explanation:
Speciation can be driven by evolution, which is a process that results in the accumulation of many small genetic changes called mutations in a population over a long period of time.
There are a number of different mechanisms that may drive speciation.
Two of them to point out here.
1. natural selection
2. genetic drift
genetic drift describes random fluctuations in allele frequencies in populations, which can eventually cause a population of organisms to be genetically distinct from its original population and result in the formation of a new species.
All living cells arise from pre existing cells.