1)The most widely accepted theory for how Iridium dust settled over the planet in a thin layer is called a. Supernova Theory

b. Volcanism Theory

c. Asteroid Theory

2)When 2 sets of data follow the same pattern a exists between two variables.

a. coincidence

b. casual link

c. correlation

d. accident

e. causation

3) Tsunamic debris, shocked quartz and glass spheres are all evidence of mass extinction.

True

False

4)Mass extinction is when a small number of different species becomes extinct over a long period of time.

True

False
p hel its timed

answer; ///i believe its: ///(embolus);

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.

a. population growth is decreasing

-2

+4

-10

-3

-8

-3

so the population decreased by 24 because 3+3+8+10+2=26-2=24.

hoped i !

explanation: