Answer:b
Explanation:some seeds do not germinate during adverse conditions.this is called dormancy.this may occur due to hard seed coat.this seed coat prevents the entry of water and oxygen which are necessary for the plant to grow and germinate.
Water is a nessesary medium for essential metabolic reactions in the seed.the temperature at which is seed would germinate also varies.
Oxygen is needed for a germinating plant to obtain energy through respiration. The seed coat may also be so tough that they resist growth and expansion from taking place.
Seeds are able to break dormancy on their own.some may need to undergo natural processes that lead to softening.this process may be slow.some others may need heat or certain nutrients.
Germination of seed occurs when the dormant plant has taken in water and oxygen to show high metabolic activities leading to the formation of a seedling.
Answer:
Question Answer
Inquiry This is the act of trying to find the answer to an unknown question by the use of experimentation and research.
Investigation This is the process of researching or studying a concept. Examination, inquiry
Explanation:
Answer:
True.
Birth control pills contain a combination of hormones that prevent the formation of the ovule, by prevent the formation of the luteinizing follicle. There are several types of birth control pills,but the process is generally the same
Explanation:
This works because the white pain acts as a barrier, therefor the sunlight a bounces off the glass instead of just going through.
B. vertebrates and invertebrates.
