Answer:
A sexual reproduction it is mostly send in single sel organisms
I think the answer is Cell M<span>embrane.</span>
According to the research, a tropism is a plant's response to external stimuli like light, gravity, and touch.
<h3>What is a tropism?</h3>
It is the response that plants or certain organs of them make to a stimulus that comes from the outside.
There are different classes of tropisms according to the nature of the stimulus, gravitropism, phototropism, heliotropism among others.
Therefore, we can conclude that according to the research, a tropism is a plant's response to external stimuli like light, gravity, and touch.
Learn more about a tropism here: brainly.com/question/9267510
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Answer: Neural tube
Explanation: Central nervous system originates from ectoderm, neuroectoderm gives rise to neural tube, the primordia of brain and spinal cord. Neural tube is the embryonic structure, neural plate folds into neural tube is formed at the dorsal side of embryo.
Answer:
D
Explanation:
<u>The correct answer should be no, because the variation displayed by the butterfly is due to the environment and not due to genetics.</u>
Variations can be caused by the environment where organisms inhabit or by genes in the system of the organism. Variations that are due to the environment cannot be passed on to the next generation while those that are due to genes can be inherited by subsequent generations.
<em>The variation observed in the significantly different butterfly as shown in the illustration is due to the fact that it spent time developing in an area of the habitat that is warm, moist, and has more food available when compared to other areas. The variation is, therefore, due to the environment only and not genetics.</em>
The correct option is D.