Explanation

 Cyanobacteria are the only diazotrophs (nitrogen-fixing organisms)

That produces oxygen as a by-product of the photosynthetic process, and which must negotiate the inevitable presence of molecular oxygen with an essentially anaerobic enzyme.

Explanation

Explanation

 Xerophytes:

The dominant vegetation types are plants that are adapted to arid environments and can survive with minimal rainfall. 

Common Genera:

Grasses: Lasiurus, Cenchrus, Sporobolus, Cymbopogon, and Panicum. 

Shrubs: Suaeda, Capparis, Calligonum, Leptadenia, Salsola & Haloxylon. 

Trees: Prosopis, Tamarix, Zizyphus, and Acacia. 

Specific Plant Species:

Lana (Haloxylon salicornicum) 

Karir (Capparis aphylla) 

Phog (Calligonum polygonoides) 

Explanation

 Strict Natural Reserves are areas set aside for the protection of biodiversity and natural geological features, with very strict regulations prohibiting human activities to ensure minimal disturbance.

Explanation

 In IUCN categories, for a species to be considered "Vulnerable" based on the extent of occurrence (B1), the geographical range should be less than 20,000 square kilometers. 

Explanation

 Direct observation methods for tracking mammals have limitations, especially for nocturnal species.

Since these animals are active at night, low visibility makes it difficult to observe them directly.

Additionally, dense habitats and shy behavior further reduce the effectiveness of this method.

Explanation

 Tactile signals:

Involve the transmission of information through physical touch or contact. 

Examples of tactile signals:

Mating: Tactile signals play a role in courtship and mating rituals, like honeybee foraging through touch. 

Explanation

 Pangolins, sometimes known as scaly anteaters, are mammals of the order Pholidota

The one extant family, the Manidae, has three genera: Manis, Phataginus, and Smutsia.

Domain: Eukaryota

Kingdom: Animalia

Phylum: Chordata

Class: Mammalia

Mirorder: Ferae

Clade: Pholidotamorpha

Order: Pholidota

Weber, 1904

Explanation

The burning of fossil fuels has several disadvantages:

A. Release of Harmful Gases: It emits pollutants like carbon monoxide, sulfur dioxide, nitrogen oxides, and particulate matter, contributing to air pollution and health issues.

B. Oxygen Consumption: Combustion requires oxygen, as fossil fuels react with it to produce energy and byproducts.

C. Carbon Dioxide Emission: It releases significant amounts of carbon dioxide, a major greenhouse gas driving climate change and global warming.

Explanation

 A spectrophotometer measures the amount of light absorbed by a substance at different wavelengths.

It is widely used in plant studies to analyze how leaves absorb specific wavelengths of light, which is crucial for understanding photosynthesis.