Answer:
Sponges are the members of the phylum Porifera. They have cellular level of body organization and they are sedentary. The space, food and other resources are limited. This leads to lot of competition for space among the sponges. Some of the sponges produce toxins to stop other sponges from settling down nearby or very close to another one. Toxins secreted by sponges provide a competitive advantage.
Answer:
A.
Explanation:
stem cells are body cells that haven't been given a purpose yet. so they can fill in where they are needed most. but they cannot form back into stem cells.
Im pretty sure your answer is b.
Answer:
C.Because of hunting, species such as bears and wolves are in danger of extinction.
Answer:
A) 
B) 
C) 
or 
hours
Explanation:
A) The formula that can be used for bacteria after "t" hours is
Where ,
represents the population after "t" hours
represents the initial population.
represents the rate of growth of population
represents the time taken by the population to grow
B) Here let us first find the rate of population growth.
Thus, the population of bacteria after 5 hours
C)
