A wetland was drained to build a mall. Two years later, there were no more toads in that
area. Why did the toads disappear?

A: the toads were frightened and went into the wood

B: The toads get their food from the wet land ecosystem

C: the toads were destroyed by the construction equipment

D: the toads died because toads cannot breathe out of water.

How many cells are our body made of ? ♡

What are levels of ecology and how can we remember them

Tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d