Tree rings are formed by growth in the ________

a. epidermis
b. vascular cambium
c. periderm
d. cortex


b

Biology & Microbiology

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Assuming some bacteria did enter her body, an example of the second line of defense against

these bacteria includes __________.

a. phagocytes b. mucus c. macrophages d. antibodies

Biology & Microbiology

Sensory signals that trigger release of saliva are an example of how the nervous system works with which other system?

1.endocrine 2.cardiovascular 3.sensory 4.digestive 5.muscular

Biology & Microbiology

Two Drosophila are crossed several times, with the

total number of offspring being 106 females and 48 males. There is too great a deviation from the expected 1:1 ratio for chance alone to account for the difference. What other factor could account for this difference? What will be an ideal response?

Biology & Microbiology

The website www.choosemyplate.gov ________

A) helps you find restaurants online B) is a private online store selling dietary supplements C) promotes USDA's dietary guideline D) sells kitchenware

Biology & Microbiology