Question

Порівняйте будову павукоподібних і комах. Чому на вашу думку саме комахи стали пануючими на суходолі членистоногими​

Answer 1

Объяснение:

Павуки:в них головогруди вкриті щитом, з них прості очі зазвичай є чотири пари а ротові кінцівки хеліцери закінчують рухомим кігтик ом і слугують для вбивання, захищають короткі ніжки.

Комахи: їх тіло чітко поділений на три відділи: голову, груди та зовні вкрита суцільною капсулою, в багатьох комах там містяться 1-3 маленькі вусики. Це органи чуття комах, нюху та дотику.

комах велика кількість і із-за цього вони панують на суходолі наприклад: двокрилі, медоносні бджоли, метелики, різні жуки

Answer 2

Comparison of Anatomy: Spiders vs Insects

Spiders and insects are both arthropods, belonging to the phylum Arthropoda. However, they have distinct differences in their anatomy and body structure.

Spiders: - Spiders belong to the class Arachnida, which also includes scorpions, ticks, and mites. - They have two main body parts: the cephalothorax (combined head and thorax) and the abdomen. - Spiders have eight legs, which are attached to the cephalothorax. - They have no wings or antennae. - Spiders have specialized structures called spinnerets on their abdomen, which produce silk used for various purposes such as building webs, capturing prey, or creating egg sacs. - Most spiders have venom glands and fangs, which they use to inject venom into their prey or for defense.

Insects: - Insects belong to the class Insecta, which is the largest class in the animal kingdom. - They have three main body parts: the head, thorax, and abdomen. - Insects have six legs, which are attached to the thorax. - Many insects have wings, although some species are wingless. - Insects have a pair of antennae, which are sensory organs used for detecting chemical signals and environmental cues. - Insects undergo metamorphosis, with distinct stages such as egg, larva, pupa, and adult. - They have a wide range of mouthparts adapted for different feeding habits, such as chewing, sucking, or siphoning.

Dominance of Insects on Land

Insects have become the dominant group of arthropods on land for several reasons:

1. Adaptability: Insects have evolved a wide range of adaptations that allow them to thrive in diverse habitats and ecological niches. Their ability to fly, crawl, and burrow enables them to exploit different resources and escape predators. Additionally, their small size allows them to occupy various microhabitats.

2. Reproductive Capacity: Insects have high reproductive rates, with many species producing large numbers of offspring. This reproductive strategy increases the chances of survival and colonization of new habitats. Insects also exhibit a variety of reproductive strategies, such as parthenogenesis (asexual reproduction) and complex mating behaviors.

3. Feeding Strategies: Insects have diverse feeding habits, including herbivory, predation, scavenging, and parasitism. This versatility allows them to utilize a wide range of food sources, including plant material, other insects, decaying matter, and even blood. Their ability to exploit different food resources contributes to their ecological success.

4. Flight: The evolution of wings in insects has been a key factor in their dominance. Flight enables insects to disperse over long distances, find new resources, and escape unfavorable conditions. It also facilitates pollination, which is crucial for the reproduction of many plant species.

5. Metamorphosis: The ability of insects to undergo metamorphosis provides them with distinct advantages. The larval stage allows for efficient feeding and growth, while the adult stage is specialized for reproduction and dispersal. This life cycle strategy enhances their survival and adaptation to changing environments.

6. Insect Societies: Some insects, such as ants, bees, and termites, have evolved complex social structures. This social organization enables them to cooperate in tasks such as foraging, defense, and nest construction. The division of labor and communication within these societies enhances their ability to exploit resources and defend against predators.

These factors, among others, have contributed to the evolutionary success and dominance of insects on land. However, it is important to note that spiders also play important ecological roles and have their own unique adaptations that allow them to thrive in various habitats.

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