A biologist conducting a long-term field study noticed there were two types of mice in a valley. One type of mouse had webbed toes, and one type of mouse lacked webbed toes. A dam was built in the valley turning the land into a wetland. As the years passed, all mice living in the valley were found to have webbed toes. No mice were found with non-webbed toes. Which statement best explains the observed change in the mouse population?
Question 22 options:
Webbed-toed mice survived better and reproduced more than mice without webbed toes.
The mice grew webbing to move more efficiently in the new environment.
The increased water levels in the valley increased the mutation rate in the mouse population.
Webbed toes in mice are controlled by the environment.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

the answer is: metamorphic rocks often show the presence of fossils, also a

hope i

-lavira: )

satellites are frequently used to make observations of the orbit on earth

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.