What are the effects of cystic fibrosis?
A. skin disorders
B. absence of pigment
C. circulatory and cardiovascular diseases
D. respiratory and digestive issues
D. respiratory and digestive issues
Cystic fibrosis primarily affects the respiratory and digestive systems. It can cause frequent lung infections, difficulty breathing, and obstructed airways. In the digestive tract, it can lead to poor nutrient absorption, digestive issues, and problems with weight gain. Skin disorders and absence of pigment are not common effects of cystic fibrosis. Circulatory and cardiovascular diseases can occur as complications of cystic fibrosis, but they are not the primary effects of the condition.
Which statement is the most accurate definition of mutation?
A. A mutation is a change in DNA that only causes diseases.
B. A mutation is a change in DNA that only causes survival advantages.
C. A mutation is a change in DNA that can change the structure and function of genetic information.
D. A mutation is a change in DNA that can change the structure of genetic information and cause diseases.
C. A mutation is a change in DNA that can change the structure and function of genetic information.
This statement accurately defines mutation as a change in DNA that can alter the structure and function of genetic information. Mutations can result in various outcomes, including diseases, survival advantages, or neutral effects on an organism.
What is the main function of camouflage?
A. Camouflage helps organisms gain nutrients in their environment.
B. Camouflage helps organisms resist diseases.
C. Camouflage helps organisms blend within their environment.
D. Camouflage helps organisms find mates.
C. Camouflage helps organisms blend within their environment.
The main function of camouflage is to help organisms blend in with their surroundings, making it easier for them to avoid predators or sneak up on prey. This adaptation enhances the organism's chances of survival by increasing their chances of avoiding detection.
A mutation that causes abnormal cell division can result in...
A. cystic fibrosis.
B. clogged arteries.
C. skin cancer.
D. sickle cell anemia.
C. skin cancer.
A mutation that causes abnormal cell division can result in conditions such as cancer, including skin cancer. Skin cancer occurs due to mutations in skin cells that lead to uncontrolled cell growth and division. Cystic fibrosis, clogged arteries, and sickle cell anemia are not typically caused by mutations that affect cell division.