Biology, 01.03.2020 21:24 nguyendavis17
Q1 What is the correct sequence an impulse travels through the four components of the heart’s nodal system?
(Here I have order these options in chronological sequence order)
A: bundle of HIS
B: SA node
C: AV node
D: Purkinje fibers
I ordered this as cabd and it got marked wrong
Q2: Which of the following structures depolarizes next after the AV node?
I put in purkinje fibers and it was marked wrong.
Q3: Soon after the onset of ventricular systole the:
A: AV valves open
B: Aortic pressure increases
C: First heart sound is heard
D: semilunar valves open
I put B as my answer and it was marked wrong.
Answers: 1
Biology, 22.06.2019 10:30, ccarwile01
Apopulation of rabbits live in a local forest. some had a mutation for a large body and long legs. the graph below shows the number of both the mutant and the normal rabbits over 5 generations. which of the following statements is true for this scenario? question 7 options: the rabbits with the mutation were more successful with restricted food than the normal rabbits. both sets of rabbits were equally successful with the restricted food source. i the normal rabbits were more successful with restricted food than the rabbits with the mutation. the graph does not let us know which rabbit was more successful.
Answers: 1
Biology, 22.06.2019 14:40, mathwhiz9125
Genes that come together with different alleles are heterozygous. homozygous. genotype. segregated.
Answers: 2
Q1 What is the correct sequence an impulse travels through the four components of the heart’s nodal...