Probably mutualism, maybe commensalism. need more detail about the effects this interaction has for algae.
Answer:
Oil Sand is also known as Tar Sands. Oil sand is a mixture of sand, clay, water, and a substance called bitumen.
Explanation:
Some of the disadvantages of tar sand are
- Extracting bitumen from tar sands is carbon-intensive.
- Leaks from tar sands operations could harm people and animals in the region.
- Clear-cutting is often required to access deposits.
Some of the advantages of tar sand are
- It provides a localized economic benefit.
- It is a secure source of energy.
- Environmental changes can be repaired.
- Recipients of tar sands experience economic benefits.
Answer:
Sodium ions are pumped from a region of lower concentration to a region of higher concentration in the nerve cells of humans
Explanation:
Active transport is a kind of transport in which substances or molecules are moved from a region where they are in low concentration to a region where they are in high concentration. Active transport occurs against concentration gradient, hence, energy input in form of ATP is required.
Based on this description, the option that best ilustrates active transport is when: Sodium ions are pumped from a region of lower concentration to a region of higher concentration in the nerve cells of humans. The process will require energy to occur since sodium ions are pumped against concentration gradient.
D. #4 is the correct answer