Homologous structures are structures that we find across different species. They have the same organisation (they have the same parts) but have different functions (they are used for different things).
homologous structures can be used to interpret evolution, because they show that different species share common features which must have been inherited from a common ancestor.
These structures have a different function because different species use these parts for different purposes. This supports evolution by supporting the claim that organisms adapt (change) in response to their environment.
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Answer: B
Explanation:
When the outer electron shell is full in an element, this creates a Noble gas
.An ionic compound is made up of charged particles, called ions. This compound has an enormous lattice structure with strong electrostatic forces of attraction. With a full outer shell,the ions have the electronic structure of a noble gas
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Answer:
evolution of human works
Explanation:
The cell theory states that all living forms are composed of cells. These cells are the basic structural units of all organisms and they evolved from pre-existing cells present in primitive living forms. From a biological point of view, the evolution of cells is similar to the evolution of human works, which were during the beginning of human civilization less specialized than in modern times. Likewise, somatic cells present in evolutionary recent multicellular organisms are capable of carrying out more complex functions than primitive cells present in unicellular organisms.
" This is the most stupidest answer / question ever!"
Answer:
蛋白质合成的场所只能是核糖体 在核糖体上合成的蛋白质会被转送到内质网进行进一步的加工 包括折叠、组装和糖基化等一系列的过程。最终再经过高尔基体的加工和包装 进行分泌
在内质网上的操作仅仅是加工而已 使蛋白质产生三级四级结构,但是合成的过程(脱水缩合)一定是在核糖体上的。
Explanation: