The answer is number 3 use this to help you : https://quizlet.com/118565169/nsg-6005-week-8-flash-cards/
I believe the question is according to the attached image.
The order of the diagram that would show primary succession in an area that had never before been occupied by living organisms is;
C,A, B, D.Primary succession occurs in lifeless areas; these are regions in which soil is incapable of sustaining life as a result of factors such as lava flow, newly formed sand dunes, or rocks left from a retreating glacier.
Answer:
The Endangered Species Act was formulated in 1973. This Act was made in order to protect the threatened and endangered species of both plants and animals and also to protect the habitats in which these species live.
One of the major success was that there were many species which actually recovered from this act. For example, the population of the Kirtland's warbler increased from 210 to 1415 from 1973 to 2005.
One of the major controversies which arose from this act was that the critics claimed that this act failed to show major recovery of animals. Out of the total 2000 endangered species listed, only 28 species were properly recovered.
The correct answer is A. Type I
Explanation:
In biology, a survivorship curve is a type of graphic that shows the rate of survival of individuals of one species along time. This type of graphics includes three types of curves. The first one or Type I occurs when individuals can survive during the first ages but by the middle and end of life, the survival rate falls. The second one or Type II occurs in species in which survival rate slowly declines as time passes. Finally, in the third curve or Type III, there are species that experience difficulties for surviving at the beginning of life by then survival rate stay the same. In the case of humans, most scientists classified our species in Type I because at early age survival rate is mainly high as only a few percentages of the population dies at a young age, but after middle age and in elderly the death rate sharps and therefore survival rate falls.
