Answer:
Phototropism refers to the movement of of plant body or parts towards or away from the light. There are two types of phototropism i. e. positive phototropism and negative phototropism.
In positive phototropism, the parts of plant body moves toward light. Movements of radical in the upward direction after seed emergence is the example of positive phototropism.
In negative phototropism, the body part of plant moves away from the light. Roots are the example of negative phototropism.
Two identical copies formed by the replication of a single chromosomes
Scientists prove their hypothesis is true about Scientists can never "prove" their hypotheses are true, because some future experiment, possibly using new technology not currently available, might show the hypothesis to be false after all.
Answer:
If she complains about progressive pain or pain while moving the wrist
Explanation:
When the teenage girl fell upon her wrist, she might have broken her wrist. If she complains about progressively increasing pain and also feels pain while moving her wrist, then it would be clear that might be her wrist bone has broken.
Generally people break their bones while playing in games where they try to catch themselves or land on ground on their wrist. Some common early symptoms of broken of bones are – Bruising, tenderness, swelling, deformity in bone, pain in wrist etc.
