1.
Spiders have _______ legs
Explanation
Spiders have eight legs, which is also represented by the number 8. This is a well-known fact about spiders, as they are arachnids and belong to a class of animals that typically have eight legs.
2.
Spiders are which of the following?
Correct Answer
C. Arachnids
Explanation
Spiders are arachnids, not bugs or insects. Arachnids are a class of arthropods that include spiders, scorpions, and ticks. They are characterized by having two main body segments, eight legs, and no wings or antennae. While bugs and insects belong to the class Insecta, spiders belong to the class Arachnida. Therefore, spiders are correctly classified as arachnids.
3.
Spiders appeared how many years before back-boned animals?
Correct Answer
A. 100 million
Explanation
Spiders appeared 100 million years before back-boned animals. This suggests that spiders have been around for a longer period of time compared to animals with backbones.
4.
Some species of spiders can live under water
Correct Answer
A. True
Explanation
Some species of spiders have adapted to live in aquatic environments and are capable of surviving underwater. These spiders have developed specialized adaptations that allow them to breathe and move underwater, such as creating air bubbles around their bodies or using their silk to create a diving bell. This enables them to hunt for prey, lay eggs, and even mate underwater. Therefore, it is true that some species of spiders can live under water.
5.
Which spider has unusually awesome eyesight?
Correct Answer
C. Jumping spider
Explanation
Jumping spiders have unusually awesome eyesight because they have four pairs of eyes, including two large front-facing eyes called principal eyes. These eyes are specialized for high-resolution vision and provide the spider with excellent depth perception. The principal eyes also contain specialized color receptors, allowing jumping spiders to see a wide range of colors. This exceptional eyesight helps them accurately judge distances, track prey, and navigate their environment with precision.
6.
These have been known to prey on spiders:
Correct Answer
C. Wasps
Explanation
Wasps have been known to prey on spiders. They are predatory insects that feed on a variety of other insects and spiders are one of their preferred prey. Wasps have strong jaws that allow them to capture and immobilize spiders. They paralyze their prey with venom and then carry them back to their nests to feed themselves or their larvae. This predatory behavior is common among many species of wasps and helps them obtain the necessary nutrients for survival.
7.
Tarantulas have a unique denfese method that consists of shedding some of its _______ to aggravate a foe
Correct Answer
C. Hairs
Explanation
Tarantulas have a unique defense method where they shed some of their hairs to aggravate a foe. These hairs, also known as urticating hairs, are barbed and can cause irritation, itching, and even allergic reactions when they come into contact with the enemy. By shedding these hairs, tarantulas can deter or distract their attackers, giving them a chance to escape or defend themselves.
8.
Spider bites are a huge cause of illness in the U.S.
Correct Answer
B. False
Explanation
People often think they've been bitten by a spider (most notably the brown recluse (L. reclusa) but they've actually got a bacterial infection from another source.)
9.
All spiders are arthropods and have ___________
Correct Answer
B. Exoskeletons
Explanation
Spiders are classified as arthropods, which means they have exoskeletons. An exoskeleton is a hard, rigid outer covering that provides support and protection for the spider's body. It also serves as a point of attachment for muscles and helps prevent water loss. Unlike humans and other vertebrates, spiders do not have an internal skeleton. Instead, their exoskeleton acts as their skeletal structure.
10.
Male spiders of the tangle web weaver Tidarren of the Middle East may have a number of mates but the females are always monogamous.
Correct Answer
B. False
Explanation
The statement is false because it states that male spiders of the tangle web weaver Tidarren of the Middle East may have a number of mates, while the females are always monogamous. This means that male spiders can have multiple mates, but females only have one mate.
11.
What do spiders eat in general?
Correct Answer
B. Insects
Explanation
Spiders generally eat insects as their primary source of food. They are known to be carnivorous creatures that feed on a variety of small insects such as flies, mosquitoes, and beetles. Spiders use their webs or hunting techniques to catch and immobilize their prey before consuming them. While spiders may occasionally consume other small creatures like birds or bees, their main diet consists of insects.
12.
Insects have 3 body parts whereas spiders have ______
Correct Answer
2
two
Explanation
Insects have 3 body parts, namely the head, thorax, and abdomen. On the other hand, spiders have 2 body parts, which are the cephalothorax and the abdomen. The cephalothorax is a fused structure that combines the head and thorax of other arthropods, while the abdomen is the posterior part of the spider's body. Therefore, the correct answer is 2 or two.