Which of the following is NOT a part of the lymphatic system?
A. Pancreas
B. Bone marrow
C. Tonsils
D. Lymph node
E. Spleen
Answer: A
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Over the years, the neurotoxin has become more toxic. How might the toxin have changed
over time?
. mutation b. gene flow c. adaptive radiation d. sexual selection
Cartilage is composed of specialized cells called
A) osteoclasts. B) erythrocytes. C) chondrocytes. D) platelets. E) osteoblasts.
In your garden, you have an Ailanthus altissima, also known as the Tree-of-Heaven. You try adding additional plants to the same garden bed, but notice poor seed germination and seedling growth around the tree. What is the most likely explanation for this?
A. The tree is utilizing most of the available miconutrients in the soil. B. The tree is blocking most of the available sunlight which is limiting germination and growth. C. The tree is releasing chemicals into the soil that are inhibiting germination and growth of other plants. D. The tree has a mutalistic relationship with animals that are removing plants that are in competition for resources with the tree. E. The roots of the tree have a stronger water potential than the seedlings which is causing the seedlings to dehydrate.
Approximately what percentage of human DNA does not code for proteins?
A) 49% B) 79% C) 98.5% D) 99.9%