Response:
The skeletal system's bones collaborate with the muscular system's muscles.
Clarification: The system composed of muscles and bones allows for movement.
(I hope this is useful; you could also look for the same question as someone might have already addressed it.)
:)
Yes, the statement is indeed true.
Response: B. Shrubland
The thornscrub ecosystem exists between the Sonoran and Chihuahuan Deserts. It characterizes a typical shrubland comprising smaller trees like velvet mesquite and shrubs such as Catlaw acacia and cactus commonly found in the Sonoran Desert. The thornscrub shrubland showcases distinct wet and dry seasons, allowing for the growth of both annual and perennial herbs. Consequently, the vegetation is influenced by alternating wet and dry periods.
Response:
Louis Pasteur, by noting that microbes existed in the air and were contaminating the broth contributed to the understanding that all cells arise from pre-existing cells (option b), which is a key postulate of the cell theory.
Clarification:
Pasteur's work, executed around 1860, demonstrated that unicellular life forms could be found in a sterile broth solely after it was exposed to air, where other microbes were present, thereby disproving the premise of spontaneous generation.
Conversely, in the broth that did not come into contact with the air, Pasteur did not find any microorganisms.
Through his experimentation, Pasteur rejected the idea of spontaneous generation and supported the postulate of the cell theory that suggests all cells derive from existing cells.
The other options are incorrect because:
a and c. Every living thing is composed of cells and the cell is the fundamental functional unit of living organisms are tenets of cellular theory not validated by Pasteur's research.
d. Unicellular organisms inherit exact copies of DNA from their parent cell does not represent a postulate of cell theory.
