Which of the following is not visible during
the totality of a total solar eclipse?
1. prominences
2. All of these
3. the chromosphere of the sun
4. the corona of the sun
5. the photosphere of the sun

Explain why ecosystem diversity results in species diversity in a healthy biosphere

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.

Which of the following molecules can be broken down into simple sugars? a. nucleic acid b. protein c. lipid d. carbohydrate