Answer:
Heterotrophs obtain chemical energy for their survival by eating plants and animals.
Explanation:
- The chemical energy that organism need comes from food. They break this food down to obtain energy.
- Depending on their source of nutrients , they are classified into: Autotrophs and Heterotrophs.
- Autotrophs use sunlight and photosynthesize to produce their own food. They are often known as producers.
- Heterotrophs are beings that can't prepare their own food and consume other organisms to obtain energy.They are also called consumers.
- Examples include: Animals, fungi,etc.
Providing irrigation water for nearby farmlands. hope this helps
Answer:
Option D, The DDT killed susceptible flies. The few that were already naturally resistant survived and passed this resistance on to their offspring.
Explanation:
When DDT was sprayed for the first time, some of the house flies which were not capable enough to withstand the adverse effects of DDT , eventually died. And the butterflies that survived through this, were having a natural resistance against DDT. Now, with time these DDT resistant houseflies mated and produced offspring that had genetic trait of resisting DDT by birth. This is the reason, why houseflies after ten years were as abundant as ten years back when the control program was started.
Option D is correct
Fungi cell walls are made of chitin and other polysaccharides, not cellulose (Plants) or protein (Animals). Therefore your answer is-
"The cell walls of fungi are different than the cell walls of plants because they contain the hard material of chitin"
1.dry and cold air mass 2. Dry and warm air mass 3. Humid and cold air mass 4. Humid and warm air mass
