I think i no idea <span>Sandstone is a(n) ____ sedimentary rock.??
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Answer:
C. disruptive selection
Explanation:
An African butterfly species exists in two strikingly different color patterns which is disruptive selection
Answer:
Hunting and Gathering
Explanation:
The first humans were nomads who traveled with their food. This means that they would seasonally move across regions hunting the animals there and gathering plants to eat. These people existed before civilization started. Centuries later, these people would develop agriculture and start society. However, the first people were still hunter-gathers.
Answer:
See explanation below.
Explanation:
Starfish, also known as sea stars, are marine organisms that belong to the Class Asteroidea. They are considered invertebrates because they lack a vertebral column. Moreover, most starfish species have five arms but some species can have up to 15!
Here are some characteristics that differentiate starfish from other organisms and make them so unique:
- Possession of tube feet.
- Most species have pedicellaria, claw-shaped structures with movable jaws.
- Radial symmetry
- They can possess from 5 to 15 arms.
- Do not possess brain.
- They can regenerate parts of their body.
So sound travels 1 kilometer in roughly 3 seconds and 1 mile in roughly 5 seconds. When you see the flash of a lightning bolt, you can start counting seconds and then divide to see how far away the lightning struck.
