All About Arthropods

Summary

This video provides an insightful look into arthropods, a diverse group of invertebrate animals that make up over 80% of all known species. Arthropods live in a variety of environments, from oceans to deserts, and include animals like insects, spiders, and crustaceans. They possess exoskeletons for protection and growth through molting. The video explains their biological systems, bilateral symmetry, and reproduction. Some arthropods, such as bees and scorpions, are venomous, using their venom for prey capture or defense. The video highlights the incredible diversity and adaptability of arthropods.

Takeaways

• 📊 Animals are divided into two main groups: vertebrates (with a backbone) and invertebrates (without a backbone).
• 🦀 Arthropods are the largest and most diverse group of invertebrates, making up over 80% of all animal species.
• 🌍 Arthropods inhabit a wide range of environments, from deep oceans to dry deserts and tropical rainforests.
• 🦐 Common aquatic arthropods include crustaceans like crabs, shrimp, and lobsters.
• 🐞 Terrestrial arthropods include insects, spiders, ticks, and millipedes.
• 🦾 Arthropods have an exoskeleton made of chitin, which provides support and protection while reducing water loss.
• 🐚 Arthropods grow by molting, shedding their exoskeleton to form a new, larger one.
• 🔬 Arthropods possess organs and systems for digestion, respiration, circulation, and reproduction.
• 👀 Many arthropods have specialized sense organs, including eyes and antennae.
• 🦂 Some arthropods, like wasps, bees, spiders, and scorpions, have venom used for hunting or defense.

Q & A

What are the two main groups animals are typically classified into?

Animals are typically classified into two main groups: vertebrates, which have a backbone, and invertebrates, which do not have a backbone.

What percentage of all known species of animals are arthropods?

Arthropods make up over 80 percent of all known species of animals.

In what types of environments do arthropods live?

Arthropods live in all areas of the earth, including deep oceans, hot dry deserts, and moist tropical rainforests.

What is the common name for the hard outer body covering of arthropods?

The hard outer body covering of arthropods is called an exoskeleton.

What is the purpose of the exoskeleton in arthropods?

The exoskeleton in arthropods serves to support and protect the animal's body and can also help reduce water loss.

How do arthropods grow given they have an exoskeleton?

Arthropods go through stages of molting to grow, which is a process by which they shed their exoskeleton and grow a new one.

Why are arthropods usually small in size?

Arthropods are usually small in size because they lack an internal skeleton to support their bodies.

Which aquatic arthropods are often larger than land arthropods?

Aquatic arthropods such as crabs and lobsters are often larger than land arthropods because they can use the surrounding water to support their bodies.

What are some of the organs and body systems that arthropods possess?

Arthropods have organs and body systems for digestion, breathing, circulation, and reproduction.

What type of symmetry do all arthropods have?

All arthropods have bilateral symmetry.

How do arthropods reproduce?

Arthropods reproduce by sexual reproduction.

Which arthropods are known to be venomous and what is the purpose of their venom?

Venomous arthropods include wasps, bees, spiders, and scorpions. The venom is a type of poison that is injected by a bite or sting into other animals, used to kill prey or for protection against predators.