Does mutation always carry beneficial genetic variations in an organism

Why do donkeys bray?

Which layer of the skin contains the sebaceous glands?

A 6-year-old client presents with polyarthritis, and the parents report no medical history except for a sore throat 4 weeks ago. On physical examination, a murmur is noted. Which diagnosis is supported by the assessment data? A.

Do sister chromatids tides move to opposite ends of the cell during anaphase one like they do during anaphase or mitosis

When there are enough resources for every living thing in an ecosystem, the ecosystem is a. divided. c. balanced. b. equipped. d. abiotic.

True or false: wes j. Moore was very close to his father

This is one result of gamete formation through meiosis and fertilization during sexual reproduction that promotes biodiversity within a species.

Trees put out what 2 products in photosynthesis?

When will natural selection occur? A. When there are plenty of resources B. When there is no genetic variation. C. When there is limited food. D. When there is no competition

Skulls of Homo sapiens were found during an excavation. The skulls were preserved because the bodies were frozen. So, these fossils are (1) fossils. (1) A. Mineralized B. Mold C. Original-tissue