Explanation

 Bakelite is a thermosetting polymer. 

Thermosetting polymers are plastics that undergo a permanent chemical change when heated,

Forming cross-links that make them rigid and unable to be reshaped or melted after curing.

Bakelite is a classic example of a thermosetting polymer,

Formed through the condensation reaction of phenol and formaldehyde.

It is often used in applications like electrical insulation and handles. 

Explanation

Poxviruses are DNA viruses, while poliovirus, measles, and mumps are all RNA viruses. 

Explanation

The optimal pH for most arginases is in the alkaline range, with values typically between 9.0 and 10.0, though variations exist depending on the source and specific arginase isoform.

Arginase is an enzyme with an optimal pH around 9.7, where it functions best to convert arginine into urea and ornithine in the urea cycle.

Explanation

The temperature of body is controlled by Hypothalamus gland.

The hypothalamus is a small region of the brain.

Explanation

STH (Somatotropic Hormone) is also known as Growth Hormone (GH).

It promotes protein synthesis even after the growth phase ends.

It plays a role in tissue maintenance, muscle development, and metabolism throughout life.

Explanation

Reversible inhibitors, including both competitive and non-competitive inhibitors, form weak linkages with enzymes. 

Explanation

Insulin is a hormone secreted by the beta cells of the pancreas.

It helps regulate blood glucose levels by promoting glucose uptake into cells.

Explanation

Endocrine glands secrete hormones directly into the bloodstream, without using ducts.

Examples include the pituitary, thyroid, adrenal, and pancreas (as an endocrine gland).

Explanation

 Plants that do not have adaptations to remove excess water from their cells in freshwater environments are xerophytes.

These plants are adapted to survive in dry, arid conditions and have evolved to conserve water, not to deal with excess water influx. 

Explanation

During gastrulation, the upper layer formed is called the epiblast. 

During the early stages of embryonic development, a process called gastrulation transforms a bilaminar disk (consisting of the epiblast and hypoblast) into a trilaminar disk.

The epiblast is the upper layer, while the hypoblast is the lower layer.

The epiblast eventually develops into the ectoderm.