Answer: Species stay the same for a long time and then
change quickly due to environmental changes.
A punctuated equilibrium theory
states that
individual species tend to stay the same or no change over a long period of
time and then enter a period of rapid change due to environmental changes,
which gives rise to new species. Moreover, it generally applies to sexually
reproducing organisms but other biologists have applied the model to non-sexual
species like virus.
Answer:
The endocrine system produces hormones that are transported to the target regions by the circulatory system.
The Circulatory System delivers oxygen and nutrients in the blood to the surrounding cells to maintain Homeostasis. The blood in the Circulatory System is needed throughout the body so that other systems work properly. Like for instance the Nervous System has the brain, and the brain needs blood to function.
hope this helps
Yes it is in consideration all catalysts are of biological origin because biology is just a large term for a certain type of science.
Answer:
All dicot seeds have an endosperm that is produced during seed development.
Explanation: