Spiders

It really depends on what spider bit you. If it is a poisonous spider, get it checked out immedietly, however if it is just a normal spider that has bit you, but the bite hasn't gone away after a week or so, I recommend getting it checked out by a doctor just to make sure it hasn't got infected because that could be more serious that the bite itself but can be cured with a simple injection or cream.

The lifespan of an ant can vary depending on the species, but typically worker ants live for a few months to a couple of years. Ant colonies can last for many years, with multiple generations of ants passing through the colony during that time.

The insect that has eyes in its knees is the praying mantis. These eyes are known as ocelli and help the mantis detect light and movement.

Which ever way you look at it you are most likely correct. Usually what i see is they are tan with brown spots.

Yes, when I had frostbite on my finger, it felt tingly and numb. Eventually, blisters will form, after the blisters go down which might take a while, the entire layer of frostbitten skin will go dry and will have to be peeled off.

Spider do not have backbones; spiders have an exoskeleton (their bodies are supported by the outer shell of their bodies which is made of chitin).

Spiders are typically not included on a traditional food pyramid as they are not commonly consumed by humans. In the context of their own food chain, spiders are carnivores that consume insects, small invertebrates, and sometimes even other spiders.

It is possible that having three spider bites in a row could indicate that there is a spider infestation in your living environment. It is recommended to seek medical attention to ensure proper treatment for the bites and to address the underlying issue of the infestation.

No, they have camera style eyes. Some spiders have very well developed vision and their eyes reflect that. See reviews by F. Barth, M. Land, R. Foelix and other arachnologists for details; also look at pics of Dinopis and Salticidae (jumping spiders)

Spiders do not have a skeleton on the inside of their body. They have what is called an "exoskeleton" which is basically a hardened outer shell that covers their entire body.
Spiders have an exoskeleton.

Spiders usually have eight eyes (some have six or fewer), but few have good eyesight. They rely instead on touch, vibration and taste stimuli to navigate and find their prey. Most are able to detect little more than light-dark intensity changes which stimulate nocturnal web building, hunting or wandering activities and rapid movement to allow quick reactions against daytime predators (e.g. by dropping from webs). Some spiders have median eyes that can detect polarised light and they use this ability to navigate while hunting. From http://australianmuseum.net.au/How-spiders-see-the-world

The study of matter and how it changes is called chemistry. Chemistry explores the properties and behaviors of substances, as well as the interactions between different types of matter.

If someone is not naturally ticklish, trying to tickle them may not elicit the same response as it would in someone who is ticklish. It's important to respect their boundaries and not force tickling on them if they do not enjoy it. Instead, focus on other forms of affection or playfulness that they do enjoy.

Creeping eruption doesn't harm humans, all it does is form a snakelike tunnel underneath the top layer of your skin and you can see it on top of your skin. The larva dies off in 2-8 weeks which is average, but survival of 55 weeks has been reported. Treatment just makes the larva die off more quickly. But, no it can't harm humans if not treated.

P.S.

If you continuously itch the area where the tunnel like things appear, it can cause bacteria on top of the skin which can lead to a skin dizease.

No, chigger bites are not contagious. Chiggers are tiny larvae of mites that can cause itching and skin irritation when they bite humans. The bites themselves do not spread from person to person.

Spiders reproduce sexually, where a male spider transfers sperm to a female spider through specialized reproductive organs. The female then lays eggs which develop into offspring through a process called oviparous development.

They have seven segments on each leg, they do not have knees like humans do

If you agree that geography can be defined in these three ways: Physical , Environmental and Economical, then a different language must be used to describe each.

For example, landforms may not have a place in economical geography.

The description you provided matches the markings of a common black-and-white orb-weaver spider, known as the marbled orb-weaver or Araneus marmoreus. This spider is known for its distinctive black orb-like body with a white to creamy stripe running down the back of its abdomen. It is non-aggressive and typically weaves its orb-shaped webs to catch prey.

Funnel-web bites are dangerous and first aid should be given immediately using the pressure bandage/immobilisation technique (as for snake bite) and the victim taken to hospital and given antivenom if necessary. Most ambulance vehicles are also equipped with anti-venom in areas prone to funnel web activity. The venom has a neurotoxin component that attacks the human nervous system and, in the worst cases, can result in death however there have been no recorded fatalities since the introduction of anti-venom.

See http://australianmuseum.net.au/Funnel-web-Spiders-group.
In particular, "The spider (hunting mostly at night) sits just inside the entrance with its front legs on the trip-lines. When a beetle, cockroach, or small skink, typical items of funnel web food, walks across the lines, the spider senses the vibrations and races out to grab its meal. The prey is quickly subdued by an injection of venom from the spider's large fangs. Funnel-web spiders may also forage on the surface in the vicinity of the burrow."

Most spiders produce silk, a protein-based substance that is used to create webs, wrap prey, and construct egg sacs. Silk is a strong and flexible material that is produced by specialized glands in the spider's abdomen.

Hair follicles and sebaceous glands are two examples of skin appendages found in the skin. Hair follicles are responsible for producing hair, while sebaceous glands produce sebum, an oily substance that helps to keep skin moisturized.

Gangrene can affect any part of the body where blood flow is restricted, leading to tissue death. It commonly occurs in the extremities such as fingers, toes, arms, and legs. Organs like the intestines can also be affected by a type of gangrene called internal gangrene.

An unfed female black widow spider can typically live for several weeks to a few months without a food source, depending on environmental conditions such as temperature and humidity. However, it is not recommended to keep them in a glass jar with tiny holes in the lid as it may not provide adequate ventilation or space for the spider's well-being.