<span>d. production of chemicals to ward off insects
</span><span>Adaptations are the result of evolution in different living organisms. This process occurs amazingly through gene mutation but it takes a very long period in time. Adaptation processes occur to help species survive and thrive in the ecological balance of life. Structural adaptations are physical features of an organism that adapted through time.</span>
Chlorine
Explanation:
Chlorine is an element that has more valence electrons than oxygen but fewer valence electrons than neon, more protons than sodium but fewer protons than argon.
Element atomic number number of protons <u>number of valence electrons</u>
Oxygen 8 8 6
Neon 10 10 8
Since the number of valence electrons of the element is between that of oxygen and neon, the compound must have a valence electron of 7.
Only all the elements in group 7 on the periodic table fits this description.
Element number of protons
Sodium 11
Argon 18
The element must be between sodium and Argon. This suggest that the element is chlorine.
learn more;
Halogen brainly.com/question/6324347
#learnwithBrainly
Answer:
Density is related approximately reciprocally to individual metabolic requirements, indicating that the energy used by the local population of a species in the community is independent of its body size.
Are the daughter cells produced by mitosis genetically unique substantive, cannot divide again substantive, have half the DNA of the parent cell substantive, and are genetically identical to each other?