![subject](/tpl/images/cats/biologiya.png)
Biology, 27.04.2021 20:50 murillokiara0kiki
Something about fossils i don't get. PLEASE HELP
About 530 million years ago, an evolutionary period known as the "Cambrian explosion" took place. Large numbers of new animal species appear in the fossil record that corresponds with this time.
Based on patterns of extinctions documented in the fossil record, about how many of these Cambrian species are probably still surviving today?
A- none of them
B- All of them
C-most of them
D-A very small number of them
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 10:30
Which of the following statements is accurate about evolution? question 10 options: natural selection only eliminates odd individuals. evolution means that a population never has changes in its genetic frequencies. mutations are always harmful. evolution means that a population undergoes changes in its gene frequencies over time.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 14:00
True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 15:00
What are the three groups of atoms that make up amino acids called
Answers: 1
You know the right answer?
Something about fossils i don't get. PLEASE HELP
About 530 million years ago, an evolutionary peri...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 11.03.2021 03:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 11.03.2021 03:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/health.png)
Health, 11.03.2021 03:30
![question](/tpl/images/cats/mat.png)
Mathematics, 11.03.2021 03:30
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 11.03.2021 03:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 11.03.2021 03:30
![question](/tpl/images/cats/mat.png)
Mathematics, 11.03.2021 03:30
![question](/tpl/images/cats/mat.png)