Answer:
Certainly more than that.
Explanation:
Obviously not. Pests in our subdivisions don't have any negative affect on nature. HUMANS are the main reason for the destruction of our nature. We pollute oceans and destroy forests and homes for creatures. The "pests" that you refer to actually vanishing themselves due to our destruction causing their predators to disappear.
Precambrian which lasted 291 million years!
Hope this helps!
-Payshence
Answer:
the electrical impulses get sent through the conduction pathways which cause ventricles to contract and this allows heart to pump blood.
Explanation:
The electrical impulse starts in a small bundle of specialized cells located in the right atrium, called the SA node. The electrical activity spreads through the walls of the atria and causes them to contract. This forces blood into the ventricles.
And it should be understood that, an electrical stimulus is generated by the sinus node (also called the sinoatrial node, or SA node). The electrical stimulus travels down through the conduction pathways and causes the heart's ventricles to contract and pump out blood.
100% , if there is a dominate allele present it will be the dominate trait