Sources of energy that are renewable and derived from plants are called ________
Fill in the blank(s) with correct word
biomass fuels
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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
Which hormone has potent, direct effects on appetite?
A. leptin B. insulin C. glucagon D. thyroxine E. vasopressin
Swelling of one or more lymph nodes is referred to as _______
Fill in the blank(s) with the appropriate word(s).
When the direct method of measuring mutation rates is used, estimates are made for a specific
____________________ over a number of ___________________ Fill in the blank(s) with the appropriate word(s).