Explanation

Ginger has rhizomes, which are horizontal underground stems that can give rise to new plants, allowing it to propagate vegetatively.

Explanation

Sexual reproduction is the type of reproduction that involves the fusion of gametes (sperm and egg cells) to produce offspring with a unique combination of genetic traits.

This process introduces genetic variation, which is essential for evolution to occur.

Explanation

The skeleton is the framework that gives shape to the human body and provides support, protection, and movement.

It consists of bones, cartilage, and ligaments that work together to form a structural system.

Explanation

The correct order is: Ribosomes → RER → Golgi body → Lysosome.

• Ribosomes: Protein synthesis occurs here, and the newly synthesized protein is released into the cytosol.
• RER (Rough Endoplasmic Reticulum): The protein is transported to the RER, where it is processed and modified (e.g., folding, glycosylation).
• Golgi body: The protein is packaged into vesicles and transported to the Golgi body, where it is further modified and sorted.
• Lysosome: The protein is delivered to lysosomes, where it can be used for various cellular processes (e.g., digestion, recycling).

Explanation

• Vitamin A poisoning, also known as hypervitaminosis A, can occur when an individual consumes excessive amounts of vitamin A. The liver of polar bears (Ursus maritimus) is particularly high in vitamin A, and eating it can lead to acute vitamin A poisoning.
• Polar bear liver can contain up to 30,000 IU of vitamin A per gram, which is significantly higher than the recommended daily intake. Consuming even small amounts of polar bear liver can lead to toxic levels of vitamin A in the body, causing symptoms such as headache, dizziness, nausea, and even death in severe cases.

Explanation

Ethambutol is known to be toxic to the eyes, potentially causing optic neuritis and vision changes, particularly affecting color vision.

Regular monitoring of visual acuity and color vision is recommended for patients taking ethambutol to detect any signs of ocular toxicity early.

Explanation

The pH of acid rain is less than 5.6. 

Normal rain is slightly acidic due to the dissolution of carbon dioxide from the atmosphere.

It forms weak carbonic acid and typically has a pH of around 5.6

When the pH drops below this value, it is classified as acid rain.

Primarily caused by pollutants like sulfur dioxide and nitrogen oxides, according to the EPA. 

Explanation

The pancreas is a unique organ that functions as both an exocrine and endocrine gland.

The exocrine portion produces digestive enzymes that are released into the duodenum through ducts.

The endocrine portion, called the islets of Langerhans, produces hormones like insulin and glucagon, which are released directly into the bloodstream to regulate blood sugar levels. 

Explanation

The enzyme responsible for breaking down starch into maltose in the human digestive system is amylase. 

Amylase is an enzyme produced in the saliva and pancreas that specifically breaks down starch into smaller sugar molecules like maltose

Explanation

The cerebellum is primarily responsible for coordinating muscle movements, maintaining balance, and posture.

It receives information from sensory systems about the body's position and movement, and then sends signals to muscles to fine-tune movements.

This allows for smooth and coordinated movements, accurate muscle tone, and stable posture.

It also plays a role in motor learning.