Answer:
Speciation was allopatric or peripatric, but would depend on the number of individuals that dispersed from the original populations.
Explanation:
- There are two types of speciation: allopatric and peripatric.
- Allopatric speciation occurs when the species of same population gets isolated that results in lack of gene flow.
- From the isolated population, new species are formed then it is known as the peripatric speciation.
- All these isolation of populations and formation of new species depends upon the initial or original group of species that was dispersed.
The characteristics of living things are as follows:
- Movement or locomotion
- Respiration
- Nutrition
- Irritability or sensitivity
- Growth
- Excretion
- Reproduction
- Death
<h3>WHAT ARE LIVING THINGS:</h3>
- Living things are organisms that possess life in them and can perform certain functions unique to them.
- These functions are the characteristics of living things. The following are the characteristics of living things:
- Respiration
- Nutrition
- Irritability or sensitivity
- Growth
- Excretion
- Reproduction
- Death
Learn more about living things at: brainly.com/question/17074249
Answer: B. by toxic chemicals (in smoke) or radiation that can damage the DNA in cells.
Explanation:
The carcinogens presents in cigerates covalently bind to DNA and form DNA adducts which results into miscoding (e.g., insertion of the wrong base) during replication of DNA and this genetic mutation causes uncontrolled cellular growth which causes cancer.
Ionising radiation including X-rays, radioactive particles, and gamma rays,can cause cancer by damaging DNA. high-energy radiation damages DNA and cause genetic mutation same as cigerates and causes cancer.
Both toxic chemicals (in smoke) or radiation damages DNA inthe cells which leads to cancer.
Hence, the correct option is B.
When a single cell organism splits in too
