The size of a bird population increased by two percent in one year. Which of the following could have contributed to the population increase? A a decrease in the death rate of baby birds B an increase in the number of predators C an increase in the number of parasites in the environment
D a decrease in the number of birds being born

A. a decrease in the death rate of baby birds

Explanation:

Only option A would result in an increase of the bird population. This is because if the death rate of baby birds decreased, less baby birds would die and more would grow up, thus increasing the bird population.

I hope this helps!

A.

Explanation:

the others would cause a decrease.

i believe the correct answer from the choices listed above is the first option. the scientists need to look at the   validity of data, claims, hypotheses, and observations before  developing an argument. they base their arguments on facts that are present and they make sure they have proofs. 

explanation:

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation: