Answer:
B
Explanation:
All animals in the food chain have a job and keep each other balanced. With out the top predator the species that are lower than the top predator will over populate and throw off the food chain.
Hope this helps :)
Answer:
Environmental factors can alter gene expression, cell signalling and cell differentiation.
Explanation:
- Environmental factors can change, stop or disrupt the process of cell signalling and gene expression in organisms.
- The environmental factors are drugs, chemicals, temperature, etc.
- With the effect of environmental factors, the organism will try to adapt to the environment by changing the internal process.
- In case of adaptation, some organism may survive to the changing environment but there is a risk of exhibiting defects and in some case, the result can be death.
I think its A i hope that helps
