Explanation

A scientific law is a statement that describes a consistent and universal pattern of natural behavior.

It is often considered an irrefutable theory.

Examples of scientific laws include the Law of Gravity, the Laws of Motion, and the Law of Conservation of Energy.

Explanation

Fermenters are also known as bioreactors.

They are large containers used to grow microorganisms like bacteria, yeast, or cells on a large scale for various industrial applications, such as:

• Production of biofuels
• Biopharmaceuticals
• Food processing
• Biotechnology research

Explanation

A reflex action is a rapid, automatic response to a stimulus.

The simplest reflex arc involves only two neurons:

1. Sensory neuron (afferent): carries information from the receptor to the spinal cord
2. Motor neuron (efferent): carries the response from the spinal cord to the effector (muscle or gland)

Key Point:

The longest reflex pathway involves multiple neurons.

It is called a "long reflex" or " polysynaptic reflex".

Explanation

In the five-kingdom system, viruses are not placed in any of the five kingdoms:

1. Monera (bacteria)
2. Protista (eukaryotic organisms)
3. Plantae (plants)
4. Animalia (animals)
5. Fungi (fungi)

Viruses are considered non-living entities.

So, in the five-kingdom system, viruses are not classified in any of the five kingdoms.

Explanation

Vitamin C is found in:

• Citrus fruits like oranges, lemons, and grapefruit
• Other fruits like kiwi, guava, strawberries, and cantaloupe
• Vegetables like peppers, broccoli, Brussels sprouts, and potatoes

Explanation

Eyesight problems, such as hypermetropia, are also known as refractive errors. 

The medical name for long-sightedness is hypermetropia, sometimes called hyperopia.

Long-sightedness leads to problems with near vision (seeing things that are close up) and the eyes may commonly become tired.

Explanation

The breakdown of CFCs releases chlorine, which then acts as a catalyst for the destruction of the ozone layer.

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ND22-1-2023

Explanation

The formation of the primitive streak occurs during the gastrula stage of embryogenesis. 

The primitive streak is a crucial structure that appears at the beginning of gastrulation,

A stage where the three germ layers (ectoderm, mesoderm, and endoderm) are established.

It serves as a pathway for cells to migrate and differentiate into these germ layers

Explanation

The kidneys are responsible for filtering blood and regulating the amount of water and electrolytes excreted in urine.

They can adjust the concentration of urine depending on the body's hydration needs.

This makes them the primary organ for controlling water balance. 

Explanation

 Gonadotropic hormones, like follicle-stimulating hormone (FSH) and luteinizing hormone (LH),

They are specifically secreted by specialized cells called gonadotrophs within the anterior pituitary gland.