Answer:
The head got bigger and the face got smaller. Hope his helps.
Answer:
The correct option is <u><em>A. they evolved from land mammals.</em></u>
Explanation:
The process of evolution explains how closely one organism is to another based on their common ancestors. Scientists believe that those organisms which show many similarities in their structures or functions might have evolved from a common ancestor in the past.
As in the above-mentioned question, scientists have observed that cetaceans lack gills and breath air, this is a property of land mammals. The cetaceans have fin bones which are similar to the limb bones. As limb bones are present in land mammals, hence they cetaceans and land mammals might have common ancestors in the past.
It would slow down in the stage of growing or
Dominant: the more common trait (brown hair)
Recessive: a trait that doesn't show up unless both parents carry it (blue eyes)
Co- dominant: both traits show up and co- exist (AB blood)
Incomplete dominance: when a dominant gene does not completely mask a recessive gene so they blend (pink flower)
Phenotype: physical trait- able to be seen (stripes on a zebra)
Genotype: genetic makeup of an organism - genetic trait
Hetrozygous: different (Bb)
Homzygous dominant: same and dominant (bb) and (BB)
Purebred: same as homzygous- has same alleles (bb) and (BB)
Hybrid: also known as heterozygous traits
1.
75%
25%
orange (AA) blue (aa)
2 orange Aa
2.
0%
100%
Hetrozygous
The cell theory is the idea that the basic unit of life is cells.
