Macroevolution occurs over geologic time above the level of the species, and speciation events are thus examples of macroevolution. Given these facts, speciation events are an example of something that occurs above the level of what among the following options: - alleles - retina - species - the sun - plants - astrology - speciation events - trees
species

(Question)
Earth orbiting the Sun causes seasons to change, and similarly, stars are referred to as suns, but our star is the Sun. Given these facts, what does earth orbit to cause the seasons to change among the following options: - Solar energy - sunlight - wind - satellites - mars - moon - our star - friction
(Answer)
our star

Ques: Most invertebrates have a nervous system, and jellyfish and insects are invertebrates. Given these facts, what have a nervous system among the following options: - fur seals - viruses - animals - jellyfish - bacteria - ducks - mammals - phytoplankton
Ans: jellyfish

(Q).
Most carcinogens cause cancer by producing mutations in DNA, and jet fuels are carcinogens. Given these facts, what can cause cancer by producing mutations in DNA among the following options: - A drug. - Pesticides - cigarettes - A computer - Toxicity - jet fuel - copper - PDAs
(A).
jet fuel

Ques:Scales are used for protection by scaled animals, and fish are backboned aquatic animals. Given these facts, what are used for protection by fish among the following options: - scales - fins - streams. - coral - gills - Collagen - mussels - whiskers

Ans:scales

Erosion causes deposition, and deposition landforms also occur forming stalactites and stalagmites . Given these facts, what contributes to forming stalactites and stalagmites among the following options: - Shadows - rainfall - Bats - Columns - heat - flooding - Erosion - calcite
Erosion