Answer:
See the answer below
Explanation:
Normal height - H
Short height - h
Heterozygous - Hh
A cross involving heterozygotes would be Hh x Hh
Hh x Hh
HH Hh Hh hh
Since H is dominant over h;
HH and Hh would produce normal height phenotypes.
hh will produce a short height phenotype.
Thus;
<em>Probability of normal height phenotype resulting from the cross = 3/4 or 75%</em>
<em>Probability of short height phenotype resulting from the cross = 1/4 or 25%</em>
The circulatory system is mainly made up of the heart and the blood vessels. It is closely related to the respiratory system which is primarily made up of the lungs. The digestive system is primarily made up of the gastrointestinal tract. This simply means your mouth, esophagus, stomach, small and large intestines, and rectum up until your anus. All the cells in the human body are kept alive by these systems working together in harmony.
The heart pumps blood throughout the whole body via the blood vessels. Blood, particularly red blood cells (RBC), carry oxygen and nutrients inside of them and release them to the other cells in the body. Oxygen comes from the lungs in the respiratory system every time we breathe in air. Nutrients come from the digestive system after food has been broken down to small components that can be utilized by the cells in the body.
Answer:
Microscopes are often used to examine specimens which are too small to see in detail using only the human eye. Which of the following procedures should be followed prior to placing a specimen slide on the stage of the microscope?
Turn the objective lens to the lowest magnification setting.
Explanation:
Turnin of objective lens to the lowest magnification enhances visibility which would allow the lens to focus on the specimen clearly. It is always important to start with the lowest magnification.
Answer:
Option A. Oxpecker birds eat parasitic ticks off the backs of zebras, is the correct statement for Mutualism.
Explanation:
Oxpecker birds is a special type of bird which feed on the parasites that are present on the surface of zebra. These parasites causes harm to the zebra. Oxpecker birds free the zebra from the parasite while the zebra provides food to the oxpecker bird and both get benefit from each other. So it is Mutualism relationship.
Option D. A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat, is a type of parasitism relationship.
