![subject](/tpl/images/cats/biologiya.png)
Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are an echinoderm species which uses anchoring structures called holdfasts to attach themselves to the sea floor. crinoids were most abundant in pennsylvania during the mississippian period, which ranged from 375 to 320 million years ago. fossils of the crinoids shows that during most of this time pennsylvania was that provided favorable conditions for crinoid growth
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 19:00
Consider the diagram below, which represents components of the biosphere. what do the two arrows in the diagram most likely represent? a. radiation b. photosynthesis c. cellular respiration d. energy conversions will give to anyone who answers quickly
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 03:30
Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?
Answers: 3
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 05:40
Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine
Answers: 1
![question](/tpl/images/cats/biologiya.png)
You know the right answer?
Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are...
Questions
![question](/tpl/images/cats/en.png)
English, 03.03.2021 20:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 03.03.2021 20:40
![question](/tpl/images/cats/geografiya.png)
Geography, 03.03.2021 20:40
![question](/tpl/images/cats/mat.png)
Mathematics, 03.03.2021 20:40
![question](/tpl/images/cats/mat.png)
Mathematics, 03.03.2021 20:40
![question](/tpl/images/cats/mat.png)
Mathematics, 03.03.2021 20:40
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.03.2021 20:40
![question](/tpl/images/cats/mat.png)
Mathematics, 03.03.2021 20:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 03.03.2021 20:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.03.2021 20:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 03.03.2021 20:40
![question](/tpl/images/cats/biologiya.png)
Biology, 03.03.2021 20:40
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 03.03.2021 20:40