Test 1. What were the time frames of the Archean era? 1. 3.5-2.5 billion years ago. 2. 2,500-570 million years ago
Test 1. What were the time frames of the Archean era?
1. 3.5-2.5 billion years ago.
2. 2,500-570 million years ago.
3. 570-230 million years ago.
4. 230-67 million years ago.
Test 2. When did the first jawed fish and the first amphibians appear?
1. In the Cambrian period.
2. In the Ordovician period.
3. In the Silurian period.
4. In the Devonian period.
5. In the Carboniferous period.
6. In the Permian period.
Test 3. When did seed-bearing plants appear?
1. At the beginning of the Triassic period.
2. At the end of the Triassic period.
3. In the Jurassic period.
4. In the Cretaceous period.
Test 4. What were the time frames of the Proterozoic era?
1. 3.5-2.5 billion years ago.
2. 2,500-570 million years ago.
3. 570-230 million years ago.
4. 230-67 million years ago.
Test 5. When did the first
1. 3.5-2.5 billion years ago.
2. 2,500-570 million years ago.
3. 570-230 million years ago.
4. 230-67 million years ago.
Test 2. When did the first jawed fish and the first amphibians appear?
1. In the Cambrian period.
2. In the Ordovician period.
3. In the Silurian period.
4. In the Devonian period.
5. In the Carboniferous period.
6. In the Permian period.
Test 3. When did seed-bearing plants appear?
1. At the beginning of the Triassic period.
2. At the end of the Triassic period.
3. In the Jurassic period.
4. In the Cretaceous period.
Test 4. What were the time frames of the Proterozoic era?
1. 3.5-2.5 billion years ago.
2. 2,500-570 million years ago.
3. 570-230 million years ago.
4. 230-67 million years ago.
Test 5. When did the first
Shustr 69
периоде.Ответ 1:
Период Архейский охватывает события, произошедшие между 3,5 и 2,5 миллиардами лет назад. В этот период произошло формирование и стабилизация Земли, появление первых организмов и эволюция жизни.
Ответ 2:
Первые челюстноротые рыбы и первые амфибии появились в период Девон во время палеозоя. Этот период примерно соответствует диапазону от 419 до 359 миллионов лет назад.
Ответ 3:
Семеносные растения появились в конце периода Девон во время палеозоя. Они расцветали во время мезозоя и являются преемниками папоротников, лихенофитов и плауницев.