According to research these are the 7 Characteristics of Life:
<span> 1. Living Things are Composed of Cells:</span>
<span>Single-cell organisms have everything they need to be self-sufficient.In multicellular organisms, specialization increases until some cells do only certain things.</span>
<span>2. Living Things Have Different </span>Levels of Organization:
<span>Both molecular and cellular organization.Living things must be able to organize simple substances into complex ones.<span><span>Living things organize cells at several levels:
</span><span><span>Tissue<span> - a group of cells that perform a common function.</span></span><span>Organ<span> - a group of tissues that perform a common function.</span></span><span>Organ system<span> - a group of organs that perform a common function.</span></span><span>Organism<span> - any complete living thing.</span></span></span></span></span>
Answer: The correct answer for the first question is- B) Mechanical.
Adaptation can be described as a process of change in an organism over time that facilitates its survival in the changing environmental conditions. It results due to mutation or genetic change in the individual that gives a benefit to the organism. It exhibits change in structure ( like succulent plants in desert), function, or behavior.
Mechanical is not a type of adaptation as it deals with movement of objects.
The correct answer for second question is- C) Variations.
Variation among organisms in a population results from change in the genetic material or their genetic sequences. Change at the genetic level is thus reflected in the phenotypes ( like different color of feathers in birds).
Thus, difference is in the feather color reflects variations.
Answer:
As insect nymphs grow larger, their exoskeleton becomes too tight and they must replace it. Once a nymph outgrows its exoskeleton it will go through a process called molting, in which it leaves the old “skin” or exoskeleton behind. The new “skin” will harden and become the new exoskeleton
Explanation:
Insect hormones and their receptors are a focus in pest control and research. Hence, Option B is correct.
Some of the insect hormones such as ecdysone (molting hormone), JH (juvenile hormone) and their analogs can be used for biological control of pests.
Option A: Hormone receptors are proteins that bind hormones and form hormone receptor complex to maintain cellular activities.
So Option A is incorrect.
Option B: Some of the peptide hormones used in pest control and research. So Option B is correct.
Option C: Peptide hormones interact with only cell surface whereas aminoacid derivatives and thyroid hormones directly interact with nucleus. so Option C is incorrect.
option D is incorrect.
Learn more on hormone receptor complex here:
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