A reverse reaction is the chemical reaction moving both forward and backwards.
An example of this is Ammonium chloride ⇌ ammonia + hydrogen chloride
This is a symbol for reverse reaction ⇌
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:
photosynthesis
Explanation:
Chlorophyll a absorbs the wavelengths of violet-blue and orange-red light and functions as a primary electron donor during the election transport chain in photosynthesis. It also functions in transporting energy to the reaction center where P680 and P700 are located.
Explanation:
it consists of mouth, pharynx, gullet, stomach, small intestine, large intestine, appendix, colon, rectum, and anus.
All these parts are found in most vertebrates
Below are the options:
Having two phases of meiosis allow for more unique cells to be produced.
Meiosis is a form of asexual reproduction which leads to more genetic variation.
Meiosis produces 4 haploid daughter cells which all contain identical DNA segments.
<span>Crossing over during metaphase allows segments of DNA from 2 parents to SWAP and produce non-identical haploid cells.
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The answer <span>Meiosis is a form of asexual reproduction which leads to more genetic variation</span>