Answer:
They face vary of things such as asexual reproduction
Explanation:
Answer:
produce energy without using fossil fuels.
Explanation:
People can use renewable energy sources, such as solar and wind power. Renewable energy sources help reduce acid rain because they produce much less pollution.
The correct effects of Volatiles are; Volatiles may warn nearby plants of the same species, so that they can mount a biochemical defense. They may also attract parasitoid wasps to attack an insect herbivore. Volatile terpenoids and other compounds emitted from leaves in response to insect damage allow insects parasitoids such as parasitic wasps and predators to distinguish between infested and non infested plants, and thus aid in locating hosts or prey.
Answer: True
Explanation: Ion channels are very specific and are voltage gated channels. They are highly specific and selective for particular ions only.
Example: Some of the channels allow the flow of potassium ions but do not allow sodium ions to cross the membrane to maintain the concentration.
Some of the positive ion channels allow only the movement of positive ions and no negative ions. These channels are not always open and opens only when there is a concentration gradient.
Answer:
1. B
2. A
Explanation:
According to this question, a student is trying to decide which kind of bottle to purchase, however, he is considering the kind that will have lesser negative impact on the environment and society. The plastic bottle is easy to use due to their convenience and light-weight but they are DISPOSABLE. On the other hand, metal bottles are reusable and keeps water longer.
In accordance to the student's heart for the sustainability of the environment, he should choose the METAL BOTTLE because the metal bottle is RECYCLABLE i.e. can be reused. Recycling of most materials has been encouraged in order to curb the spread of non-biodegradable materials like plastic that can serve as pollutants to the environment.
