Question 2 of 21

The recluse spider is also called the _________.

... A recluse spider has a violin-shaped mark on its head and thorax. The ease of identifying a spider by such a marking depends upon the exact species and how recently molting has occurred.

Question 3 of 21

Spiders do not stick to their own webs because ____________.

... Although not all spiders have sticky webs, those that do simply avoid the sticky areas where the "glue" has been placed. Even if they walk on sticky strands they can release themselves quite easily, because the "glue" is placed to capture fast-moving creatures, such as insects in flight.

Question 4 of 21

Most spiders have two different types of __________.

... Most spiders have both a trachea and book lungs for respiratory function -- they provide oxygen and carbon dioxide exchange through the process of diffusion.

Question 5 of 21

When used in the animal kingdom, what is the difference between the terms "poisonous" and "venomous?"

... An animal that is poisonous would be dangerous if you ate it. A venomous animal, such as a spider, will inject a poison.

Question 6 of 21

The scientifically named "Tegenaria agrestis" became commonly referred to as the "hobo spider" because it was believed it __________.

... It had been thought that the "Tegenaria agrestis" spread as a species by hopping on train cars.

Question 7 of 21

The spider species that has caused the most human fatalities is the __________.

... Although the Australian-dwelling funnel-web spider has the reputation of having caused the most deaths, there have been no reported fatalities since 1980, when an antivenin for the creature was developed.

Question 8 of 21

The best way to identify the venomous hobo spider is through its ___________.

... Without a microscope, it is very difficult to identify a hobo spider with a high degree of accuracy. Their size and coloration vary greatly, and many species of spiders build funnel-shaped webs. By using a hand lens to study the anatomy of a spider, it might be possible to identify an arachnid as a hobo spider, or, at least, to rule it out.

Question 9 of 21

If a brown recluse spider bites a human, what symptom may occur?

... People react differently to brown recluse bites. It depends upon individual sensitivity and the amount of venom received. Stinging, vomiting and tissue death are all possible. Symptoms vary greatly overall, ranging from no effect to systemic reactions to -- a very seldom occurrence -- death. Although most bites heal cleanly, some leave ulcerations that take weeks or months to clear up, leaving scars.

Question 10 of 21

Black widow spiders are usually found in __________.

... Black widows generally spin their webs between sections of outdoor structures such as woodpiles, stone walls, fences, privies and sheds.

Question 11 of 21

Some sources consider the Brazilian wandering spider the most dangerous because of its _________.

... The Brazilian wandering spider can inject a relatively large amount of venom: between 1 and 2 milligrams.

Question 12 of 21

A spider's circulatory system is ________.

... A spider has an open circulatory system, where the heart supplies blood (and, therefore, nutrients and oxygen) by pumping it out and surrounding the organs.

Question 13 of 21

The venom of the Sydney funnel-web spider is a neurotoxin that causes nerve cells to ____________.

... Once the venom is circulating in the blood, the poison makes nerve cells fire ceaselessly, causing severe pain at the location of the bite within half an hour.

Question 14 of 21

The sensory system that works best for most spiders is ___________.

... Most spiders have an excellent sense of touch; they are covered in fine hairs that transfer vibrations from wherever they are perched.

Question 15 of 21

If bitten by a black widow spider, a pregnant woman might ________.

... It is possible for the severe bite of a black widow spider to induce contractions and cause premature labor.

Question 16 of 21

Research is underway to study the medicinal use of Brazilian wandering spider venom for __________.

... In men, the venom can cause pain, high blood pressure and increased blood flow in certain appendages, so it may be an ED treatment possibility.

Question 17 of 21

Hobo spider bites come more often from _________.

... Male hobo spiders are more likely to encounter humans and bite.

Question 18 of 21

The Brazilian wandering spider is identifiable by its _________.

... Red hairs cover the necks of Brazilian wandering spiders.

Question 19 of 21

When bitten by a black widow spider, pain usually begins at the bite and then extends to the ____________.

... In a serious bite, pain usually extends from the puncture site to the stomach and back. Stomach muscles in particular might become severely constricted or cramped.

Question 20 of 21

About how many spider species have been identified?

... Although there may be more that have yet to be identified, scientists are aware of about 40,000 different species of spiders.

Question 21 of 21

The Sydney funnel-web spider is more dangerous than the brown recluse or black widow because ________.

... Unlike the brown recluse or black widow, the funnel-web spider will not run away if it feels endangered; it will attack.

YOU SCORED: 0 out of 21 try again

MORE QUIZZES

Do you know your Keats from your Yeats? Take the famous poets quiz!

Does that voice sound familiar? Take the famous voiceovers quiz!

From Colombo to Castle -- try naming the fictional gumshoe in this quiz!