Female gametophytes are produced within the
a. sepals.
b. anthers.
c. petals.
d. ovary.

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

What are examples of the plant life and animal life that can be found in each type of terrarium

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.