they catch hill and eat insects like mosquitoes
None are.
Except as food for some spiders and birds, they're not.
Some spiders, like the black widow have dangerous venom that can kill a dog, or even a human.
Spiders do not directly kill plants. They are predators that mainly feed on insects. However, some spiders may inadvertently damage plants by building webs that can block sunlight or trap insects that are beneficial to the plant.
Spiders are generally not harmful to plants. In fact, they can be beneficial by preying on insects that may damage plants.
Spiders do not harm plants directly. In fact, they can be beneficial to plants by preying on insects that may damage them.
Eubacteria are single celled and do not have a membrane. They can be beneficial to humans in some ways because they are capable of producing things such as cheese and yogurt.
Spiders do not kill plants directly. They are predators that primarily feed on insects, not plants. However, some spiders may inadvertently damage plants by building webs that can trap and suffocate small insects that are beneficial to the plant. Overall, spiders are not harmful to plants and can even help control pest populations that may harm them.
Yes. All ture spiders have fangs and poison. It is a part of their taxonomy.
no some insects do not eat spiders
Nope. Some spiders have eyes that are bigger than some small spiders themselves.
Both some birds and most spiders eat insects and spiders.