Answer:
Due to change in environment or evolution.
Explanation:
The characteristics of life are not always perfect guidelines used for classification of living things because these characteristics of life are different for every organism due to change in environment or due to evolution occurs with the passage of time. So for that reason we classify organisms on the basis of common ancestor and similarities in the structure not on the characteristics of life.
Animals that have a backbone are called Vertebrates. (Mammals, for example.)
The movement of a snake is referred to as “Slithering.”
The Stapes is the smallest bone in the human body.
mark as brainliest if i helped. good luck :) !!
- Running the dishwasher/dryer when they're full, refrain from when they only have one shelf of dishes.
- Avoid using pesticides or other sprays.
- Avoid flushing medication, fats, chemicals, etc. down the toilet or sink. There are special services that can help you rid these things if needed.
The dependant variable would be the salmon, because they depend on the water and pollution levels to give a result.
<span>A tiger looks so much different as an adult than it did as a single fertilized egg because it developed through different stages from being a zygote (fertilized egg), to becoming an embryo (where it experiences intense cellular changes), to becoming a fetus (where it gains a great measure of cell specialization, and develops distinct tissues and organ systems). After birth, the tiger still undergoes further growth and development into adulthood. This is largely regulated by the expression of different genes at different times and also by environmental factors.</span>