If an object has a net force acting on it, it will accelerate. The object will speed up, slow down or change direction. An unbalanced force<span> (net force) acting on an object changes its speed and/or direction of motion. An unbalanced force is an unopposed force that causes a change in motion. A net force = unbalanced force. </span><span>If however, the forces are balanced (in equilibrium) and there is no net force, the object will not accelerate and the velocity will remain constant. the source i found this answer is, https://www.mansfieldct.org/Schools/MMS/staff/hand/lawsunbalancedforce.htm
and the author of the source is , Mr. Hand</span>
Answer:
D
Explanation:
when when lakes receive an overabundance of nutrients they can become polluted by excessive amount of algae.
According to Darwin's Theory of Natural Selection, each generation produces more individuals than the ecosystem can sustain. However, not all individuals are identical and phenotypical variation exists.
Due to this variation, some antelopes are better at escaping lions, perhaps due to speed and/or stamina. Thus, the individuals that are slower and thus less fit will be killed and eliminated from the herd. The antelopes with heritable traits that makes them better suited to the environment, will escape and thus, survive and reproduce.
In Darwin's Theory predation is an evolutionary force.
Answer:
urinary bladder does not help in reproduction
