Explanation

 Human sex hormones, also known as sex steroids, are made up of steroids specifically derived from cholesterol. 

Steroid Hormones:

Sex hormones, like testosterone, estrogen, and progesterone, belong to a class of hormones called steroid hormones. 

Lipid Derived:

Steroid hormones are lipids, meaning they are fat-soluble molecules. 

Cholesterol as Precursor:

These hormones are synthesized from cholesterol, a type of lipid. 

Explanation

The enzyme responsible for joining Okazaki fragments during DNA replication is DNA ligase. 

Explanation

 The sensitivity of blood tissue to radiation primarily depends on the mitotic rate of cells.

Cells that divide rapidly, such as blood-forming cells in the bone marrow, are more vulnerable to radiation damage.

This is because radiation mainly affects DNA replication and cell division, making highly mitotic cells more susceptible to its effects

Explanation

 QGIS (Quantum GIS) is widely used in wildlife surveys for mapping habitats, tracking animal movements, analyzing spatial data, and planning conservation strategies.

It allows researchers to visualize and interpret ecological data efficiently.

Explanation

Species diversity refers to the variety of species within a specific ecosystem, region, or the entire planet. It includes:

1. Species richness - The number of different species in a given area.

2. Species evenness - The relative abundance of each species in the area.

Explanation

The wildlife of Pakistan comprises a diverse flora and fauna in a wide range of habitats from sea level to high elevation areas in the mountains, including

195 species of mammals (including 13 subspecies),

Endemic Species: 6

Number of orders: 10

668 bird species

More than 5000 species of Invertebrates

Explanation

 In Pakistan, mammals have the highest number of endangered species among vertebrates, followed by birds and reptiles. 

The wildlife of Pakistan comprises a diverse flora and fauna in a wide range of habitats from sea level to high elevation areas in the mountains, including

195 species of mammals (including 13 subspecies),

Endemic Species: 6

Number of orders: 10

668 bird species

More than 5000 species of Invertebrates

Explanation

 Bilateral symmetry is crucial for an active lifestyle as it allows for efficient movement and better sensory perception.

Organisms with bilateral symmetry, such as humans and most animals, have a streamlined body plan that enhances coordination, directional movement, and faster responses to environmental stimuli.

Explanation

Explanation

The approximate surface temperature of the Sun, also known as the photosphere,

It is around 5,800 Kelvin (5,500 degrees Celsius or 10,000 degrees Fahrenheit).