Explanation:
under what circumstance does a negative cell presents An antigen to another negative cell
Answer: Ethylene Gas
Explanation: Ethylene Gas Can be Used to Regulate Fruit Ripening Ethylene is a gas and is known as the “fruit-ripening hormone.”
<span>Alleles are each of two or more alternative forms of a gene that are found at the same position in a chromosome. Traits on the other hand, are the characteristics that are defined by genes. So the combination of alleles for a gene is what manifests itself into a trait.</span>
Answer:
Fungi, many birds, and a wide variety of insects all share the <u>bark</u> of a tree in the forest. Part of the <u>hyphae</u> of the fungi is to obtain energy from dead organic matter, such as dead wood. Temperatures above 0°C and sufficient water in the environment help define the range of<u> spore germination</u> for fungi.