What is the first defense the body has against a virus?

O

A. Mucus

O

B. T cells

O

C. Lymphocytes

O

D. Macrophages

Xylem and phloem together make up

Identify the characteristics of tornadoes and hurricanes. develops over warm ocean water heated by the Sun travels relatively short distances before losing its energy equivalent of a typhoon loses strength as it moves from water to land common in

What organisms can live in hot springs and thermal vents

Which of the following does the sun orbit A. the center of the milky way B. the earth C. the moon D. the stars it may seem easy but im mad confused cause people say its the milky way but it orbits both the moon and earth ... ?

Give an example of each type of natural disaster. Be sure to give the disaster name, date, and type of disaster.

Why might a water table drop

How did the 1898 discovery of blood types affect society?

Which of the following is a feeding source for fens? aquifers dexfoliants exfoliants nitrates

What system includes oceans, lakes, rivers, and groundwater? a. geosphere b. hydrosphere c. atmosphere d. biosphere

Fungal spores a. are only asexually produced. b. cannot be seen in a light microscope. c. are used to identify fungi. d. are produced by molds but not by yeasts. e. are only produced under harmful environmental conditions