1. In mice, black fur (B) is dominant to white fur (b). If a particular male with black fur is crossed with a female with white fur, the resulting offspring are 50% black fur and 50% white fur. A. What is the genotype of the father?
B. What is the genotype of the mother?

It began after the stock market crash of October 1929, which sent Wall Street into a panic and wiped out millions of investors. Over the next several years, consumer spending and investment dropped, causing steep declines in industrial output and employment as failing companies laid off workers.

they each offer a fresh glut of resources to the organisms that can arrive and exploit them. as individuals and new species continue to appear, they actively and passively alter the environment. competition for shared resources increases, local abiotic and biotic conditions shift, and the relative abundances of species change accordingly. the process is called ecological succession, and it is one of the earliest and most well-known concepts in ecology.