Answer:
When something goes wrong with the sinoatrial node, you may develop a consistently slow heartbeat (sinus bradycardia) or the normal pacemaker activity may stop entirely (sinus arrest). If sinus arrest occurs, usually another area of the heart takes over pacemaker activity. This area is called an escape pacemaker.
Explanation:
Happy to assist! If you have any questions or comments, plz comment in the boxes below! Have a wonderful day!!!!!!
-Mackie
For the answer to the question above, I believe the answer to this is <span><u><em>"The growing population is taxing Earth's resources which could lead to the extinction of many species."</em></u></span>
I hope my answer helped you. Have a nice day!
(1) A. (2) D. (3) B. (4) A. (5) B. (6) C. (7) B. (8) B. (9) B. (10) A.
Answer:
C. Evolution is a change of allele frequency from one generation to the next
Explanation:
Evolution is the gradual change that occurs to living organisms over successive generations. According to Charles Darwin, these changes aid in the adaptation of the species of an organism to their environment. In other words, it makes them better fit.
Charles Darwin further stated that since evolution is dependent on natural selection i.e selection of the best fit by environmental factors, the changes that the organism undergo are genetic. Hence, evolution is a change of allele frequency from one generation to the next.
Answer: Metaphase plate is an area that is about equidistant from two sections of a dividing cell along.
