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Pavlova-9 [17]
2 years ago
8

A hypothesis for why narwhals have long tusks can be made using the concept of sexual selection. Which one of

Biology
1 answer:
kenny6666 [7]2 years ago
3 0

In contests over females, the male with the longest tusk should always, or almost always, win.

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One of the most important bioethical issues facing us today is the issue of ____________ , or a loss thereof.
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Answer:

The correct answer is - biodiversity.

Explanation:

Bioethics is a part of ethics that has concerns and problems with the continuous use and development of biological tools and technology which has a negative effect on the environment.

It is the single most important bioethical issue today that effect on the biodiversity that includes different type of lives present on earth in the various number of species.

Thus, the correct answer is - biodiversity.

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Explain how it would be possible to have a change in a single base of DNA, but have the protein NOT change and be functional.
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vfiekz [6]

Answer:

Cytology is the study of the chemistry, structure, and function of a cell. Cytology is the study of cell structure, composition, & interaction with other cells. Cytology is the medical and scientific study of cells. Cytology is the branch of biology concerned with the structure and function of plant and animal cells.

Explanation:

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People are biological creatures as well as rational human beings. In order to gain a complete understanding of any aspect of hum
Bogdan [553]

Answer:

The correct answer is option b, that is, four-field approach.

Explanation:

Anthropology refers to the study of human beliefs, behavior, and adaptations. In order to completely comprehend any aspect of human behavior, the field of anthropology adopts a four-field approach. The four sub-disciplines of anthropology are archaeology, cultural anthropology, biological anthropology, and linguistic anthropology.  

In archaeology, materials are used generally from past cultures, in order to understand and illustrate human behavior and adaptive strategies via time. Biological anthropology refers to the study of humans as biological species, the research areas comprise diversity in modern human populations, human evolution, and medical anthropology.  

The cultural anthropology explores patterns of behavior and belief in historical and contemporary cultures all over the globe. The linguistic anthropology studies and documents languages in terms of acquisition, structure, and use in the transmission of culture. As can be seen that each of the sub-disciplines focuses on distinct characteristics of human adaptation, however, when taken together in a four-field approach it offers a powerful tool for gaining a complete understanding of any aspect of human behavior.  

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How do fossils of extinct species provide evidence of how life on earth has changed?
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