Microbes can survive in a variety of environmental conditions. Specifics depends on the type of microbe or bacteria. Factors to consider to answer an ideal environment will depend on:
- Temperature range: hot or cold
- pH: acidic or alkaline
- Gases availability: Oxygen, carbon dioxide and/or regarding their nutrients (sulfur, phosphorus, carbon or nitrogen)
The overgrowth of algae consumes oxygen and blocks sunlight from underwater plants. When the algae eventually dies, the oxygen in the water is consumed. The lack of oxygen makes it impossible for aquatic to survive.
Work done in Louisiana's coastal wetlands is an example of an conservation
Answer:
The insects developed pyrethroid resistance.
Explanation:
Pyrethroid Insecticides:
- Pyrethroids are synthetic derivatives of the natural compounds, pyrethrins, produced by Chrysanthemum plants to prevent insect attacks.
- Pyrethrins work by locking sodium channels in the cell membrane. This inhibits nerve impulses and paralyses the insect, ultimately resulting in its death.
- In the 1940s, synthetic pyrethroid insecticides were first used on auricular crops. But till the 2000s, 100 of insect species were resistant.
- This occurred due to the fact that the allele for pyrethroid resistance increased throughout the population.
- Pyrethroid resistance developed to enable the insects to survive. Natural selection allowed an exponential transfer of insecticide resistance genes throughout the insect population.
- Three major mechanisms of resistance were identified by scientists:
- Increased expression of genes involved in toxin detoxification.
- Decrease in sensitivity of the target proteins (on which pyrethrins act).
- Decrease in the insecticide penetration through the cuticle.
Answer:
a. bacteria
Explanation:
There are nitrogen-fixing bacteria whose sole purpose is to transform nitrogen into a form which can be used by our friends called the plants.
