Question 19 (04.04 MC)
Every year, millions of acres of land are cleared by forest fires. Which of the following best describes a consequence of these catastrophic events? (4 points)

a
Carbon dioxide levels decrease rapidly in the areas near the fire.

b
Population sizes will increase as new species move into the cleared area.

c
Invasive species will quickly take over the disturbed area.

d
Biodiversity will decrease in the area of the fire.

Explain how ancient whale fossils found in eqypt are believed to support the theory of evolution.

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins