Correct Answer: C) Zygotene

Explanation

Zygotene is the second stage of the prophase of meiosis, following leptotene, during which homologous chromosomes begin to pair.

Correct Answer: D) adaptation

Explanation

The question is asking about a term that describes an organism's ability to survive and thrive in its environment. This term is known as adaptation. Adaptation refers to the process by which an organism adjusts to its environment to increase its chances of survival. For example, animals living in the Arctic have adapted to the cold weather by growing thick fur to keep warm and having a layer of fat under their skin for insulation. Plants in the desert have adapted to the hot, dry environment by having long roots to reach water deep underground, and by reducing the amount of water they lose through evaporation by having small leaves or no leaves at all. Adaptation is important for an organism to be able to survive and reproduce in its environment. It allows the organism to better compete for resources and avoid predators, increasing its overall fitness. Therefore, Option D: adaptation is the correct answer to the question.

Correct Answer: A. food and other needs are abundant

Correct Answer: D. Edaphic

Correct Answer: D. lithosphere

Correct Answer: C. mosquitoes, tse-tse flies and aphids

Correct Answer: C. sun

Correct Answer: C. laterite

Correct Answer: B) species

Explanation

This question is asking about the basic unit of classification for plants and animals. The options are genus, species, phylum, and kingdom. The correct answer is option B, species. In Biology, classification is the process of organizing living organisms into groups based on their shared characteristics. The basic unit of classification is the species. A species is a group of organisms that can interbreed and produce fertile offspring. Genus is a category of biological classification that ranks below the family and above the species. It includes one or more species that share similar characteristics. Phylum is a taxonomic rank that is used to group organisms based on their body plan and structural organization. Kingdom is the highest taxonomic rank used in biological classification. It is used to group organisms based on their shared characteristics and evolutionary history. In summary, the basic unit of classification for plants and animals is the species. This is because organisms within a species can interbreed and produce fertile offspring. Genus, phylum, and kingdom are all categories of biological classification that are used to group organisms based on their shared characteristics.

Correct Answer: B. axial skeleton

Explanation

The skull is part of the axial skeleton. It is the bony structure that forms the head and encloses and protects the brain. The skull is located along the central axis of the body, and it is one of the key components of the axial skeleton.