Which describes a galaxy and nebula correctly? A. a galaxy is a solar system with a nebula in the center.

B. a galaxy is a cloud of dust that is the birthplace of stars and a nebula is a star.

C. a galaxy is a system of stars, gas, dust and a nebula is the birthplace of stars.

D. a galaxy is smaller than a nebula but they both are the birthplace of a star.

the sphincter muscles at the end of the digestive tract is the anus.

b.have there own function.

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.

homeostasis is the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes. and this is how it applies to the integumentary system. back to top. skin functions in homeostasis include protection, regulation of body temperature, sensory reception, water balance, synthesis of vitamins and hormones, and absorption of materials. when body temperature falls, the sweat glands constrict and sweat production decreases.