Which protein within the skin prevents water loss?

The _________ gland of the ____________ produces the sleep-regulating hormone melatonin.

In endochondral ossification a long bone forms from a hyaline cartilage model.

Using Figure 5.1, identify the following:Spongy bone is represented by ________.

The plasma membrane of a muscle fiber is known as the ________.

The contractile organelles of skeletal muscles are ________.

Using Figure 4.1, identify the following:The papillary layer of the dermis, closest to the epidermis and responsible for fingerprints on the epidermal surface, is indicated by ________.

In transcription:

Figure 4.1Using Figure 4.1, match the following:Bone.

Which of the following structures serve to increase the surface area of a cell and are often found on cells lining the small intestines where absorption of nutrients occurs?