In the ancestors of whales, the pelvis and femur, or hindlimb, were involved 1 point with walking on solid ground. In modern whales, the pelvis and femur
shown in below are now... *

The options are: example of fossils
acquired traits
examples of natural variation
homologous structures
analogous structures
vestigial structures

(help is appreciated

Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.

Some plants have reproductive structures that them reproduce using natural forces or animals. how does the reproductive structure shown here ensure the reproductive success of plants?