Muscle, cartilage, bone, and heart all develop from the layer of the blastocyst. ectoderm mesoderm endoderm lipoderm

The correct answer is mesoderm.

Explanation:

A germ layer is a layer of cells that forms during embryo development. In triploblastic animals, there are three layers. Mesoderm between ectoderm and endoderm two layers, forming triploblastic. Germ layers give rise to all tissues and organs by the process of organogenesis.

Mesoderm give rise to muscles, cartilage, bone, heart, connective tissue, adipose tissue, lymphatic system, circulatory system, dermis, genitourinary system, notochord, and serous membranes.

Thus, the correct answer is mesoderm.

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

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