Ask
your own question, for FREE!
Biology
18 Online
OpenStudy (anonymous):
As various vertebrate groups evolved, the structure of the heart changed. Which of the following describes the hearts of birds and mammals?
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
@Burningitdown Birds and mammals have 4 chambered heart. Amphibians and reptiles generally only have three, but crocodilians have 4.
OpenStudy (anonymous):
Alright, which answer would that relate to then?
OpenStudy (anonymous):
D?
OpenStudy (anonymous):
??
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
VERNEISH:
Two objects are moving along separate linear paths where each path is described by position, d, and time, t.
Maci:
what are the best stock apps for people who want to start investing?
Twaylor:
genuienly how do i get better self control i keep watcing youtube and theres this
IzzyCookie:
|dw:1792074056138:dw| Uhm, I don't know where to ask this, but I'm in college welding at my community college, and I need help learning vertical welding for
thehearken:
not sure if this is considered spam, im sorry if it is, but does anyone have tips
VERNEISH:
Two objects are moving along separate linear paths where each path is described by position, d, and time, t.
14 hours ago
1 Reply
0 Medals
Maci:
what are the best stock apps for people who want to start investing?
5 days ago
3 Replies
2 Medals
Twaylor:
genuienly how do i get better self control i keep watcing youtube and theres this
1 week ago
3 Replies
0 Medals
IzzyCookie:
|dw:1792074056138:dw| Uhm, I don't know where to ask this, but I'm in college welding at my community college, and I need help learning vertical welding for
3 days ago
9 Replies
1 Medal
thehearken:
not sure if this is considered spam, im sorry if it is, but does anyone have tips
1 week ago
2 Replies
1 Medal