Answer:
because they have thicker walls
Explanation:
blood is punped our of the heart very fast which means it would need a blood vessel witch thick walls to withstand the pressure. thin walls would cause the blood vessle damage and may evwn break as it wouldn't be able to withstans the pressure.
Answer:
Decrease in genetic diversity reduces the chance of variation in the offspring.
Explanation:
If there is no variation, there will be no evolution. So, if there is a change in the environment (like an outbreak of a disease) that affects one of the organisms, it is likely to affect all of them and destroy the whole population. This would lead to extinction.
I believe that is ecology
The given statement is False.
The coral reef serves as a source of food and shelter for aquatic animals. Almost one fourth of the species present in ocean depends on coral reef for food and shelter. Coral reefs are often called as rainforest of the sea. They do not have only predatory relationship rather they have symbiotic relationship with aquatic organisms.
Hope I helped! <3