Answer:
Bone pain is associated with leukemia because large number of cancer cells are present in the bone marrow.
Explanation:
Leukemia may be defined as the cancer of blood cells. This cancer generally starts in the bone marrow and leads to uncontrolled division of the cell.
An individual suffering from leukemia may experience bone or joint pain. Bone pain is more common in lymphoblastic leukemia. The bone pain is mainly caused by the uncontrolled growth of cancer cell in the bone marrow.
Answer: "selective permeability" .
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The monarch butterfly population has declined due to a scarcity of :
<h3>The Monarch Butterfly </h3>
Monarch Butterflies are one of the most beautifully colored butterflies with yellow and black lines, they migrate seasonally during the winter, Caterpillars of monarch butterfly feed on the leaves of milkweed which is a major source of food for Monarch butterflies.
The scarcity of milkweed will result in the decrease of the population of Monarch butterflies as the caterpillar will have nothing to feed on .
Hence we can conclude that the monarch butterfly population has declined due to a scarcity of milkweed.
Learn more about Monarch butterfly : brainly.com/question/289820
I believe the answer you are looking for is or are marsupials..
The Answer it’s HUMAN ACTIVIY. B