Chromosome is to cactus as gene is to a needle.
Answer:
Explanation:
A community structure is define by the diverse organism present and the various number of species.
A community requires both biotic and abiotic factor to form a good structure.
Base population is needed - this are the primary producer, that transfer energy to other organism in the environment. The produce their food themselves.
Consumers - consumers feeds on producers, herbivores animals feeds on producer/plant while carnivores feeds on herbivores. Energy is then transfer when they chemical reaction takes place via the food comes
Decomposer - They act on the dead and remains of plant and animal. They help release nutrient back into the soil. Example of decomposer is earth worm.
Answer:
When the meteor hit a caused a chain reaction which caused all that and made some cloud that was toxic.
Explanation:
Answer: Rosalind Franklin
Explanation: Rosalind was the first oerson to get a picture while Watson and Crick came up with the strusture and won the nobel piece prize