Answer: B)The continents were once connected.
Explanation:
There was probably some kind of earth quake or drift in the plains/plates causing the land to break into pieces and separate
Answer: different organisms have different chromosome numbers
Explanation: eukaryote cells have more than one chromosome
chromosomes are present in most cells all the time (not in erythrocytes), but cannot be visualised except during telophase of mitosis or meisosis
bacterial cells don’t have a nucleus
It depends if it is a carrier or not, and if the trait is recessive or dominant trait
The portion of the Moon's surface that cannot be directly observed from Earth
<span>The double helix of dna is which level of structure? a.Primary
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