Which of the following must occur for a plant or animal to grow and develop normally?
a) Sufficient oxygen must be available to stimulate cell division.
b) Theorganism must recive a supply of the appropriate horones from its parents.
c) It must be able to control the timing and rate of cell division in different parts of its body.
d) Sufficient light must be available to stimulate cell division.
e) None of the choices are correct.
If it can do c), all is well.
To determine which of the choices must occur for a plant or animal to grow and develop normally, let's go through each option and evaluate if it is necessary:
a) Sufficient oxygen must be available to stimulate cell division.
Oxygen is indeed essential for cell division and is a requirement for the growth and development of living organisms. It provides energy to fuel cellular processes. Therefore, this choice is a correct statement.
b) The organism must receive a supply of the appropriate hormones from its parents.
While hormones play a crucial role in regulating growth and development, it is not necessary for an organism to receive hormones from its parents specifically. Organisms can produce their own hormones or receive them from external sources. Therefore, this choice is not necessarily correct.
c) It must be able to control the timing and rate of cell division in different parts of its body.
The ability to control the timing and rate of cell division is vital for proper growth and development in organisms. It ensures that different parts of the body proliferate at the appropriate times and rates to form tissues and organs. Hence, this choice is also correct.
d) Sufficient light must be available to stimulate cell division.
While light is crucial for photosynthesis in plants, which provides energy for growth, it is not a direct stimulant for cell division. Cell division primarily occurs in response to internal signals, hormones, and genetic factors. Therefore, this choice is not necessarily correct.
e) None of the choices are correct.
Based on our evaluation, choices a) and c) have been identified as necessary for normal growth and development in organisms. Thus, this choice is not correct.
Therefore, the correct choices are a) Sufficient oxygen must be available to stimulate cell division and c) It must be able to control the timing and rate of cell division in different parts of its body.
To answer your question, we need to analyze each statement:
a) Sufficient oxygen must be available to stimulate cell division: This statement is correct. Oxygen plays a crucial role in cellular respiration, which provides energy for various cellular processes, including cell division.
b) The organism must receive a supply of the appropriate hormones from its parents: This statement is partially correct. While organisms do receive hormones from their parents, the development and growth of plants and animals also rely on the production and release of hormones within their own bodies.
c) It must be able to control the timing and rate of cell division in different parts of its body: This statement is correct. Different parts of an organism go through varying rates and timing of cell division to ensure proper growth and development.
d) Sufficient light must be available to stimulate cell division: This statement is partially correct. While light is essential for photosynthetic organisms (such as plants) to produce energy, which indirectly supports cell division, it is not a direct stimulator of cell division.
Based on the analysis, the correct answer would be: e) None of the choices are correct.