Q: What do sharks use to secrete salt to assist in osmoregulation? Read this paragraph and choose the correct option from the provided answers: animals exposed to similar levels of urea. Sharks are cartilaginous fish with a rectal gland to secrete salt and assist in osmoregulation. Choices: - ceramic gland - bladder gland - blood gland - rectal gland A:
rectal gland

(Question)
Q: What do you call a condition caused by mutations in one or more genes? Read this paragraph and choose the correct option from the provided answers: Mutations can result in errors in protein sequence, creating partially or completely non-functional proteins. These can obviously result in harm to the cell and organism. To function correctly and maintain homeostasis , each cell depends on thousands of proteins to all work together to perform the functions of the cell. When a mutation alters a protein that plays a critical role in the cell, the cell, tissue, organ, or organ system may not function properly, resulting in a medical condition. A condition caused by mutations in one or more genes is called a genetic disorder or genetic disease. However, only a small percentage of mutations cause genetic disorders; most have no impact on health. If a mutation does not change the protein sequence or structure, resulting in the same function, it will have no effect on the cell. Often, these mutations are repaired by the DNA repair system of the cell. Each cell has a number of pathways through which enzymes recognize and repair mistakes in DNA ( Figure below ). Because DNA can be damaged or mutated in many ways, the process of DNA repair is an important way in which the cell protects itself to maintain proper function. Choices: - intrinsic disorder - mutation disorder - evolutionary disorder - genetic disorder A:
(Answer)
genetic disorder

Ques: Q: What is the term for the affected factor in an experiment? Read this paragraph and choose the correct option from the provided answers: Test the hypothesis. Make predictions based on the hypothesis and then determine if they are correct. This may involve carrying out an experiment. An experiment is a controlled scientific test that often takes place in a lab. It investigates the effects of one factor, called the independent variable , on another factor, called the dependent variable . Experimental controls are other factors that might affect the dependent variable. Controls are kept constant so they will not affect the results of the experiment. Choices: - multiple variable - stable variable - independent variable - dependent variable A:
Ans: dependent variable

(Q).
Q: What does the human body produce to help digest food? Read this paragraph and choose the correct option from the provided answers: The human body produces many enzymes that help digest food. Here are just two examples. Choices: - vitamins - carbohydrates - fiber - enzymes A:
(A).
enzymes

Ques:Q: What bodily function do the triceps help perform? Read this paragraph and choose the correct option from the provided answers: Pearson Scott Foresman. The biceps help contract the arm, while the triceps help extend the arm . Public Domain. Choices: - perform crunches - make a fist - lift the leg - extend the arm A:

Ans:extend the arm

Q: Water molecules are polar, so they form what type of bonds? Read this paragraph and choose the correct option from the provided answers: Water molecules are polar, so they form hydrogen bonds. This gives water unique properties, such as a relatively high boiling point, high specific heat, cohesion, adhesion and density. Choices: - carbon - oxygen - helium - hydrogen A:
hydrogen