Answer:
A homozygous dominant brown mouse is crossed with a heterozygous brown mouse
B= brown mouse
b= black mouse
Bb= heterozygous brown mouse
Bb x Bb= BB, Bb, Bb, and bb 3:1 genotype
phenotype with 3 brown mouse and 1 black mouse offspring
Explanation:
The answer to the is hypothermia
The answer would be true
Iron is an important substance that needed to create hemoglobin for red blood cells. A pregnant woman will produce more blood as prevention for the blood loss when laboring. The baby also need iron to makes their red blood cells. That is why the iron requirement increases in pregnancy.
About half pregnant woman doesn't meet the requirement iron from diet alone.
The answer is speciation by geographic isolation. When the population of a species gets separated due to reasons such as continental drift, mountains, canyons, etc. then each separated group of population may survive and adapt to their respective environment leading to speciation. These barriers do not allow the evolving populations to interbreed initially and over time when they evolve into different species they become completely reproductively isolated.
Student 4 is correct. The farther the planet is from the Sun, the less pull it exerts on it.
