The structure of an organism or its part, directly influences its function, which is central to biological adaptation. Adaptation involves developing physical characteristics, which aid survival in specific environments. While analogous structures represent adaptation to similar environments, homologous structures indicate shared ancestry.
Structure and function are fundamentally related to adaptation in biology. Essentially, the shape or structure of an organism, or any of its body parts, directly relates to that part's function or purpose. This idea, called the structure-function relationship, is central to the concept of adaptation—the process by which organisms evolve physical characteristics that help them survive in their environment.
For example, consider the fins of whales and the wings of bats. Even though these animals differ significantly in many aspects, they both developed structures (fins and wings) that perform similar functions (swimming and flying), which are best suited to their specific environment. These analogous structures represent an adaptation to a common environmental condition, despite the lack of a close evolutionary relationship, and is known as convergent evolution.
On the other hand, homologous structures represent a shared ancestry. For instance, the grasping hands of humans and chimpanzees, which serve the same function, indicate a common ancestor. Despite their structural similarities, the ways these structures are used could vary, showcasing how different environmental conditions can drive variations in function and contribute to evolutionary divergence.
A prime example of the structure-function relationship—the hallmark of adaptation—is observed in the various beak shapes of finches. Different shapes serve different purposes or functions, permitting birds to make the best use of available food resources in their respective habitats.
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B. nucleolus.
C. chromatin.
D. DNA.
Answer:
Option A, Cytoplasm
Explanation:
Cytoplasm is the fluid contained with in the cell membrane into which all cell organelles are found including the nucleus. Cytoplasm basically has two parts a) endoplasm and b) ectoplasm. The endoplasm has all the organelles while the ectoplasm is the fluid at the periphery of cell membrane. The cell memebrane keep the cytoplasm confined with in the cell and does not allow it to spill.
Since all the cell components are found with in the cytoplasm, it is clear that cytoplasm lies out of the nucleus. Thus, option A is correct.
Answer:
The correct answer will be option- A
Explanation:
The nucleus is the membrane organelle which encloses the DNA of the organisms. The presence of the nucleus is the characteristic feature of the eukaryotes.
The nucleus encloses the genetic material in the form of either DNA or a loosely arranged structure called chromatin. The nucleus also contains a structure called nucleolus distinguished by a dense round structure during the interphase.
Since the nucleus lacks the cytoplasm which is enclosed by the cell membrane of the cell therefore, option-A is the correct answer.
Answer:
These measures benefit the patient in improving circulation so that he can successfully envy the blood efficiently from the lower extremities to the heart.
The use of elastic stockings is to increase the pressure and decrease the diameter of the veins, favoring venous return
for you to be scientifically
literate
Answer:
C. Explain to your reader thorougly
Explanation:
scientific litierate