8 Cloning is one type of biotechnology. Which of these choices is an example of cloning?
A Certain chickens are bred for their distinctive feather color.
B Several copies of a fruit fly gene are produced in a laboratory.
C Plants with red flowers are bred with plants with blue flowers.
D Yeast cells are placed under an ultraviolet lamp, causing their DNA to mutate.

Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red.b) the pollen grains will be pure blue.c) the pollen grains will have red interiors and blue exteriors.d) the pollen grains will have blue interiors and red exteriors.

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.