Q#1
- Carnivorous plants decoy insects by sweet scent or color.
- Not expecting threats insects sit on the plant. This catches them using mechanical traps or sticky substances.
- Then, the plant produces digestive enzymes that break down proteins, fats and sugars which make up the body of the victims for simple compounds which plant can absorb.
Q#2. Carnivorous plants grow in mineral-poor soil, raise substances necessary for life from the bodies of trapped animals. They hunt animals, so that the surface on which they grow, no nutrients they need.
Q#3.Plants by digesting insects provide each large dose of nitrates are lacking in the soil.
Q#4.<span>When a pitcher plant is grown in nitrogen rich soil it grows tall. Insects are it's food source so if it doesn't get any food, it will starve. </span>
hope i helped
Answer: The correct answer is-
C.They replaced carbon dioxide with oxygen in the atmosphere.
Cyanobacteria ( also known as blue green algae) is a large phylum of bacteria that is capable of synthesizing its own food using carbon dioxide and water in the presence of sunlight ( photosynthesis).
They contain a green pigment called chlorophyll that absorbs energy from sunlight and helps in the formation of food ( glucose). They release oxygen as a byproduct in the atmosphere.
As these organisms utilize carbon dioxide ( that is present in the atmosphere) to give oxygen in return, therefore, they affected early atmosphere of Earth by replacing carbon dioxide with oxygen.
Thus, option C) is the right answer.
Answer:
The correct answer is "uranium-238".
Explanation:
Uranium-238, is the most abundant isotope of the element uranium. Uranium-238 has not enough nuclear force to balance electrostatic forces between protons, and as a result, it is a radioactive isotope and its losing energy because of the spontaneous breakdown of its atomic nucleus. Uranium-238 has a half-life of 4.5 billion years and is used as fuel in nuclear reactors as well as for dating purposes.
