"Isabel is a four-month-old baby who loves to hold onto her rattle. She shakes it repeatedly without dropping it. Which reflex is associated with how this behavior became possible?"

Answe: the grasping reflex

Explanation:

The grasping reflex is a known form of involuntary reflex made by infants. In this form of reflex, babies tends to hold on to any object placed in their hands. In this reflex, the child tends to hold tightly to the object or human hands.

In this grasping reflex, babies hold tightly to àny object of interest to play with.the grasp is usually strong, tight and most times the infants are unwilling to let go/resolute.

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals

hello

question:

when would a new household be started?

a.when the oldest male died

b.when a man and a woman married

c.when the house could not hold everyone

d.when a child was born

answer: us d when a child was born

hope this have a great day and brainlest