⟩ What percent of stars in the sky that appear to be single stars are actually binary stars
1. about 90%
2. about 50%
3. about 20 %
4. about .5%
Answer: B
1. about 90%
2. about 50%
3. about 20 %
4. about .5%
Answer: B
What are the lowest and highest temperatures humans can survive?
What has caused evolution?
How many cells are in the average human brain?
What are analogies for a nucleolus?
If curly hair is genetic, why do you have curly hair if none of your ancestors did?
What is the main difference between a bird heart and a mammalian heart?
What are organelles, which carry out autophagy?
What best describes the amoebas division?
Are there ribosomes in a plant cell?
Why is there little or no grass in the forest?