Close

Biology

What is the central cavity of a long bone?

What is the central cavity of a long bone? A long bone, with medullary cavity labeled near center. The medullary cavity (medulla, innermost part) is the central cavity of bone shafts where red bone marrow and/or yellow bone marrow (adipose tissue) is stored; hence, the medullary cavity is also known as the marrow cavity. What […]

Read More

What are some plant adaptations in the desert?

What are some plant adaptations in the desert? How plants adapt to arid conditions thick, waxy skin to reduce loss of water and to reflect heat. large, fleshy stems to store water. thorns and thin, spiky or glossy leaves to reduce water loss. spikes protect cacti from animals wishing to use stored water. deep roots […]

Read More

What is considered facial hair?

What is considered facial hair? Facial hair is hair grown on the face, usually on the chin, cheeks, and upper lip region. It is typically a secondary sex characteristic of human males. Women are also capable of developing facial hair, especially after menopause, though typically significantly less than men. Are eyelashes considered facial hair? Yes, […]

Read More

Are island foxes aggressive?

Are island foxes aggressive? Aggressive Territorial Behavior: Island foxes are very territorial. (Territory size) Living on an island with limited resources means quality territory is vital to survival. A pair of island foxes mates for life to protect their territory and the resources needed to feed themselves and their offspring. What do island foxes eat? […]

Read More

What are the 3 characteristic properties of waves?

What are the 3 characteristic properties of waves? There are three measurable properties of wave motion: amplitude, wavelength, and frequency. Do all waves move in a pattern? Waves are regular patterns of motion, which can be made in water by disturbing the surface. Waves can make objects move. A simple wave model has a repeating […]

Read More

What best describes a monsoon?

What best describes a monsoon? A monsoon is a seasonal change in the direction of the prevailing, or strongest, winds of a region. Monsoons cause wet and dry seasons throughout much of the tropics. Monsoons are most often associated with the Indian Ocean. Monsoons always blow from cold to warm regions. Which statement best describes […]

Read More

What is the name for bacteria which break down dead plants?

What is the name for bacteria which break down dead plants? Scientists call the organisms that decompose organic matter decomposers, saprobes or saprotrophs. Fungi and bacteria are not restricted to decomposing leaves and other plant materials. They will decompose any dead organic matter, whether it is a cardboard box, paint, glue, pair of jeans, a […]

Read More

What are the four processes that change allele frequencies?

What are the four processes that change allele frequencies? Allele frequencies in a population may change due to gene flow, genetic drift, natural selection and mutation. These are referred to as the four fundamental forces of evolution. How do gene frequencies change? Gene frequencies may change from one generation to the next simply because of […]

Read More

What bone cells help rebuild bones?

What bone cells help rebuild bones? Osteoblasts work in teams to build bone. They produce new bone called “osteoid” which is made of bone collagen and other protein. Then they control calcium and mineral deposition. They are found on the surface of the new bone. How does the structure of bone cells help its function? […]

Read More