D. <span>controlled
is the right answer because a</span><span>n </span>experiment<span> in which an observer tests a hypothesis by looking for changes carried by alterations to a variable.</span>
Charles Darwin used domesticated animals to provide evidence for evolution by natural selection by showing "<span>Differences between breeds show that selection can cause species to change."</span>
The manila grasshopper has several benefits to ecosystem and humans.
- In general it facilitates decomposition and regrowth of plants by creating a balance between the types of plants that grow well.
- Like other animals, grasshopper eats and excretes in the soil. Its waste increases the fertility of the soil and promotes plant growth.
- Grasshopper body is rich in protein, on its death microorganisms break down its body and enrich the soil and helps plants to grow.
- Grasshoppers prevent over growth of plants as it consume about 10% of the available plant biomass, thus maintain ecological balance.
Answer:
C. Thermal energy to electrical energy
Explanation:
Burning coal produces heat which is thermal energy
Power is electricity or electrical power
The answer is D since organism x has a n optimal temperature of 37 degrees Celsius and when organisms y enzyme gets incorporated with enzyme x it will increase enzyme’s x temperature therefore enzyme x will denature meaning it will unfold and it will loose its properties hence loosing its activity because its temperature has been altered.
