Answer:
A set of practices that humans can follow to meet their needs without causing long-term, negative effects on species or ecosystems.
Explanation:
Sustainability means "the ability to be maintained at a certain rate or level." So sustainability is the ability for humans to meet their needs, while also maintaining the ecosystem and different species at the same rate and level.
Answer:
C. Liver cells being generated by air
Explanation:
This statement would be an example of abiogenesis, or spontaneous generation (which is proven to be impossible). Cells can not appear out of "thin air" (if you know what I mean haha. Hope this helps!
The given statement is true.
A bulbourethral gland, also known as Cowper's gland, is one of the two small exocrine glands found in the male mammal's reproductive system. At the time of sexual arousal, the glands generate a mucus-like fluid known as pre-ejaculate.
The pre-ejaculate fluid is a clear, viscous, and salty liquid, which counterbalances any of the residual acidity in the urethra. The neutralized urethra offers a friendlier surrounding for the entry of the sperm.
Similar bone structures and DNA
Answer:
A. Fossil record
Explanation :
A fossil can be defined as any preserved element (e.g., bones, exoskeletons, shells, animal imprints) which can be used to demonstrate the existence of organisms from past geological periods. The totality of fossils accumulated in a particular area is referred to as the fossil record. The fossil record is very useful in geology and paleontology because the information provided by the fossils helps to place geological events and species in their corresponding geologic eras and periods.