Answer:
Laboratory Supervisor/Principal Investigator.
Explanation:
The biohazard may be defined as any biological substance that can create problems for the living organisms. The substance can be either any bacteria, virus or any toxin.
The individual if working with any biohazard must read carefully and than start their work. This is the duty of principal investigator or the laboratory supervisor that they should include and show the written assessment of the experiments that might acts as biohazard.
Thus, the answer is Laboratory Supervisor/Principal Investigator.
The terminal cisternae releases calcium ion
The terminal cisternae act as calcium storage sites. The calcium ions stored in the terminal cisternae are essential in muscle contraction. The calcium release unit of muscle consists of terminal cisternae of the sarcoplasmic reticulum and it is adjacent transverse or T- tubule that is the invaginated part of the surface membrane.
Answer:
lichens
mycorrhiza
Explanation:
Lichens are formed by two types of organisms- an alga and fungus. The mycelium of the fungus forms athin mat which offers anchorage and protection to some microscopic algae. The alga provides the fungus with sugars which it produces through photosynthesis.
Mycorrhiza is a type of symbiotic relationship between a saprophytic fungus and vascular plants such as coniferous trees. The fungus develops in the soil near the base of the tree. Some of the hyphae penetrate into the outer layers into the soil from which it obtains mineral ions. It also decomposes proteins to their amino acids. The fungus shares these nutrients with its tree host.
Answer:
False
Explanation:
Humans:
Nitrogen is represented by the symbol N. It is abundant in the environment but humans can't use it directly from air or soil but depends upon green plants and microbes to convert it in to the usable form for using it
Plants:
Plants do not get their nitrogen directly from the air. Although nitrogen is the most abundant element in the air, every nitrogen atom in the air is triple-bonded to another nitrogen atom to form molecular nitrogen, N2
