Answer: d. exoskeletons are external to the soft tissues, and endoskeletons are internal
Explanation:
The skeleton can be define as the body part of the living beings which act as a supporting structure which maintains the posture and provides the supporting framework to the body. The exoskeleton is the skeletal structure that protects the body from outside. It encloses within it the soft tissues and organs of the body. It is the characteristic feature of the invertebrates. It is the external feature of the body. It also provides protection against the predator. The endoskeleton is the skeletal structure which serves as a attachment point for the muscles. It is the internal feature of the body.
Answer:
There are two main types of physical weathering: <u>Freeze-thaw</u> occurs when water continually seeps into cracks, freezes, and expands, eventually breaking the rock apart. <u>Exfoliation</u> occurs as cracks develop parallel to the land surface a consequence of the reduction in pressure during uplift and erosion.
It helps to classify all the different organisms out there in an orderly way.
Obviously not. Pests in our subdivisions don't have any negative affect on nature. HUMANS are the main reason for the destruction of our nature. We pollute oceans and destroy forests and homes for creatures. The "pests" that you refer to actually vanishing themselves due to our destruction causing their predators to disappear.
