Question 1
which statement best describes evolution?
species have changed o...
![subject](/tpl/images/cats/biologiya.png)
Biology, 29.01.2020 23:58 firenation18
Question 1
which statement best describes evolution?
species have changed over time.
traits acquired during a lifetime are passed to offspring.
earth’s organisms have not changed over time.
all of earth’s organisms were formed at the same time.
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 20:40
Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling
Answers: 3
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 00:00
What do all macromolecules have in common with each other? oa. they all are formed from the same elements.ob. they all have major roles in cell membranesoc. they all act as catalysts in the body.od. they all have peptide bonds between carbon atoms.
Answers: 3
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 06:20
Which direction does the energy flow in this energy pyramid ?
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 11:46
![question](/tpl/images/cats/istoriya.png)
History, 03.02.2020 11:46
![question](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 11:46
![question](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 11:46
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 03.02.2020 11:46
![question](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 11:46
![question](/tpl/images/cats/ekonomika.png)
Business, 03.02.2020 11:46
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 03.02.2020 11:46
![question](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 11:46
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 03.02.2020 11:46
![question](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 11:46
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 03.02.2020 11:46
![question](/tpl/images/cats/istoriya.png)
History, 03.02.2020 11:46