Explain what you think the phrase 'survival of the fittest' means.

Charla's blood pH level is 7.3. How will her body most likely respond?

How do the number of electrons in the second energy shell of an atom change going across period 2 in the periodic table? A. Atoms in period 2 do not have a second energy shell, instead the first energy shell increases in electrons from left to right.

Why do scientist use the light year instead of astronomical units to measure the distance between stars?

Which activity could ensure the ability of land to support crop growth? A) rotation planting of crop. b) irregular watering of crop. C) clear cutting without replanting. D) large numbers of grazing animals

Prepared food should never be "repurposed." A. True B. False

Where do you think trees get there nutrients they need to grow

Which characteristic is true of organic fertilizers? balanced caustic slow acting soluble

Tetralogy of fallot is a congenital condition of the heart that manifests in four distinct anomalies of the infant heart.

A veterinarian thinks that a dog has swallowed a key ring. Which types of electromagnetic waves is the doctor most likely to use to check the dog? u O gamma rays microwaves radio waves O X-rays

The new cell formed by the union of the spermatozoon and the ovum is the: