Answer the following questions true (T) or false (F)
1. Hot weather is common to all deserts.
2. Tropical rainforests are known for having high biodiversity but relatively poor soil.
3. Overall, the abundance of life is higher in the coastal zones of marine ecosystems than the open ocean.
Answer:
1. False
2. True
3. True
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True or false: By the time the filtrate leaves the proximal convoluted tubule, about 75% of the water and most of the electrolytes and solutes have been reabsorbed into the bloodstream
A. true B. false
Which of the following is generally notinvolved in gene inactivation by histone modification?
A. Modification leads to chromatin condensation. B. The RNA polymerase associated with the gene dissociates from DNA when HDACs bind to the corepressor. C. Increased acetylation of the nucleosomes occurs in the vicinity of the gene. D. Increased methylation of the nucleosomes occurs in the vicinity of the gene.
Most xylem vessels in angiosperms consist of stacked vessel elements, water flows vertically through ____ and laterally through ____
a. phloem; xylem b. vessel elements; tracheids c. tracheids; vessel elements d. perforation plates; pits e. pits; plasmodesmata
Name any checkpoint gene
What will be an ideal response?