There are several features unique to Earth that contribute to its being habitable. Currents in Earth's molten outer core generate the planet's magnetic field. How does this contribute to producing a habitable planet?
A)
It keeps space debris from entering Earth's atmosphere.
B)
It provides protection from solar winds that could strip away the planet's
atmosphere
Without the magnetic field Earth would not be able to maintain its position
on its axis
D)
The magnetic field acts like a lid to keep everything in the Earth's closed
system, from core to atmosphere, in one constant location.

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .

Which environmental change would most likely result in bullfrog offspring that are able to store more water than bullfrogs in previous generations?

Suppose a point mutation, such as a change from an adenine to a guanine, occurs in the genome of a human sperm cell. the mutation could occur in any region of a gene. the effect of the mutation on the phenotype of the offspring will be determined by where the mutation occurs and its effect on the final gene product. in which of the following scenarios could the mutation alter the phenotype of the offspring? select all of the scenarios that apply the mutation occurs in the promoter and affects the rate of gene transcription. the mutation results in a new, dominant allele the mutation occurs in a portion of an intron not responsible for exon splicing the mutation occurs in a gene that controls development and alters differentiation of a cell type during development. the mutation occurs in a codon and alters the function of the final protein e mutation occurs in a codon, and the amino acid sequence of the final protein is unchanged.