C is the correct answer because biotic means living and abiotic is nonliving so the elk fighting is only living creatures
Answer:
The slow rate at which diffusion occurs over large distances.
Explanation:
Circulatory system may be defined as one of the most important system of the body that contains arteries and veins. Two main types of circulatory system are open circulatory system and closed circulatory system.
The blood flow all over the body to each cell with the help of the circulatory system. Arteries carry oxygenated blood and veins carry deoxygenated blood in the body. The circulatory system increases the rate of blood flow as diffusion do not allow the transport at long distances.
Thus, the correct answer is option (c).
<span>human activity influences the natural environment producing negative, direct or indirect, effects that alter the flow of energy, the chemical and physical constitution of the environment and abundance of the species.</span>
Diffusion is a passive process. Passive transport
Answer:
True
Explanation:
Anaphylaxis is an acute allergic reaction to an antigen (e.g. a bee sting) to which the body has become hypersensitive.
Common symptoms include:
- Skin reactions such as itching and hives
- Flushed and pale Skin
- Lower blood pressure
- Difficulty breathing
- Choking
- Weak and rapid pulse rate
- Vomiting
- Nausea
- Dizziness or fainting
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