Answer:
All organisms are composed of cells that share a structural organization and play roles in similar biological processes.
Explanation:
All living organisms can be grouped in terms of cellular organization, functioning, and structure. These features enable us to define them as “subjects” of life. Organisms share basic biological mechanisms such as, among others, growth, homeostasis, development, energy processing, reproduction, etc. Moreover, life is also defined by the presence of essential biomolecules such as DNA, RNA, proteins and lipids. Finally, the cell is considered to be the basic unit of every life form, and organisms may be formed by one (unicellular) or more cells (multicellular). The fundamental feature of the cell is the presence of a membrane that separates it from the external environment, thereby defining its internal environment.
Answer: pachytene stage of prophase I
Explanation:
The processes of crossing over is called synapsis and it occurs at the pachytene stage of prophase I of meiosis.
Answer:Water evaporates, salt does not. When water evaporates, the salt stays behind while the water leaves into the atmosphere; making the ocean more saline.
Explanation:
*Over million of years, birds developed as a species. This relates to evolution.
As you say birds developed as a specie but over million of years, the gradual change or development is called evolution. Also we can understand the word is evolution because as we know, scientist believe birds evolved from dinosaurs; meaning dinosaurs had to gradually change to fit as what we know today as birds.