Question

Which of the following is a density-independent factor?
a.
disease
b.
predation
c.
natural disasters
d.
stress

Answer 1

Thanks I won't know if that is right or not yet but can I have help with a couple more?

Answer 2

What is the main difference between logistic and exponential growth curves?
a.
Logistic growth curves never increase exponentially.
b.
Logistic growth curves stabilize when carrying capacity is reached.
c.
Logistic growth curves decrease before they increase.
d.
Logistic growth curves are identical to exponential growth curves.

Answer 3

Question 1
C. natural disaters
Here are some facts on NATURAL DISATERS that you might want to keep in hand for a test one day or keep it as a lucky note!
Between 2000 and 2012, natural disasters caused $1.7 trillion in damage and affected 2.9 billion people.
2.2012 marked the third consecutive year of worldwide natural disaster damage exceeding $100 billion. 2011 reached a record high of $371 billion.
3.Worldwide in 2011, there were 154 floods, 16 droughts, and 15 cases of extreme temperature.
4.Over 1/2 of the victims of both Hurricane Katrina and Hurricane Sandy were senior citizens over the age of 65. Work with seniors to create an emergency plan in case of a disaster. Sign up for Seniors Safe and Sound.
5.Floods are the most widespread natural disaster aside from wildfires. 90% of all US natural disasters declared by the president involve some sort of flooding.
Earthquakes” are disasters that cause associated destruction of man-made structures and instigate other natural disasters such as tsunamis, avalanches, and landslides.
7.In 2012 there were 905 natural catastrophes worldwide including severe storms, droughts, tornadoes, earthquakes, floods, hail storms, typhoons, wildfires, and hurricanes.
8.Nearly 50% of the fatalities caused by natural disasters in 2012 were due to hydrological events like flooding or mass movements.
9.“Hurricanes” are large, spiraling tropical storms that can pack wind speeds of over 160 miles an hour and unleash more than 2.4 trillion gallons of rain a day. Hurricanes can be coupled with storm surges and severe flooding.
10.Damage paths of tornadoes can be in excess of one mile wide and 50 miles long.
11.Landslides often accompany earthquakes, floods, storm surges, hurricanes, wildfires, or volcanic activity. They are often more damaging and deadly than the triggering event.

Answer 4

Question 2
Growth accelerates during the exponential growth phase. Meaning it increases. (C) because An exponential growth model refers to the theory that a species will continue to grow in population exponentially (i.e. 2,4,8,16,32,64 ect) A logistic model claims that there is a limit at which the population will cease to increase.