Temporary changes would be weather, since it can change at any givin time another example would be tides coming in because they vary by day, or wet sand becoming dry sand!
Answer:
An ecologist must consider both of the speciation and extinction of an organism or when analyzing the diversity the life on earth because of the following reasons;
- It is a role of an ecologist
- It is part of their job
- This will tell the existence of the organism
- The organism’s life span on earth
- How it was existed and were extinct
Explanation:
1.Reproduction
2.Heredity
3.Variation in fitness or organism
4.variation in individual characters among members of the population
Answer:
secrete a cytokine that triggers apoptosis
Explanation:
Cytotoxic T cells secrete granzymes and perforins when targeting cells. Additionally they secrete cytokines such as IFN-, TNF-α and TNF-β that act to activate macrophages and help kill infected cells.
Answer:
climate changes are actually due to the reason that the weather pattern of a neighbouring region and earthquakes are due to the water motion below earth surface
Explanation:
