They use thread . They wrap it around the eggs to form a sack .
Yes or it could be another species, only female is black and if web is low to the ground and has heavy strands with no pattern, most likely BW
the baby spider cannot get out
Spiders do not give birth. They lay eggs. Typically they lay their eggs in a silken sac of some kind that is sealed until the spiders start to hatch. The silken sac is carried around by some spiders such as the wolf spiders, or may be hung in or near to the spider's web. Different spiders have different places to keep their egg sacs safe.
Spiders make an egg case, lay their eggs in it, and seal it up. Then they either carry the egg case along with them (as do the wolf spiderss, the fishing spiders, etc.), build a nursery web in preparation for holding in the baby spiders for a few days while they grow up a little and then hang the egg sac in there so they can hang out on the outside and protect everything (those spiders are called nursery web spiders), or they fasten the egg sac wherever they take shelter on a regular basis.
Spiders lay eggs which then hatch into little spiders.
Spiders. they can lay up to 550 eggs.
spiders and grasshoppers both do.
There are at least a few who inject the eggs into a host. When the young spiders are born, they gnaw through the still-living host and devour it. So, no, not all of them spin a cocoon.
spiders protect themselves by flicking there hairs into the persons face and damge them.
Do garden spiders have to mate to have eggs
Well, all female spiders do.
100
....No.
They build a home underground to protect them from predators