The uncoiled DNA in a eukaryotic cell is much longer than the cell itself
Indicate whether the statement is true or false
TRUE
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Iron deficiency is often indicated by yellowing in newly formed leaves. This suggests that iron is _____
A) a relatively immobile nutrient in plants B) tied up in formed chlorophyll molecules C) concentrated in the xylem of older leaves D) concentrated in the phloem of older leaves E) found in leghemoglobin and reduces the amount available to new plant parts
All of the following are coenzymes except
A) NAD. B) NADP. C) FAD. D) coenzyme A. E) pyruvate dehydrogenase.
Answer the following statements true (T) or false (F)
1. An assumption for the use of molecular clocks is that neutral mutations accumulate at a rapidly increasing rate over time between two species. 2. A modern goal of systematics is to classify organisms based on similarity of form and function, regardless of their evolutionary relationships. 3. A phylogenetic tree shows the hypothesized evolutionary relationships among organisms, meaning that its structure can be revised and changed as new information about those relationships becomes known. 4. The alternate host for Entamoeba histolytica is the Anopheles mosquito.
The terrestrial realm of the biosphere is distributed into particular climatic regions called
A. niches. B. habitats. C. biomes. D. populations. E. communities.