Right answer gets brainlist. Name 1 parasite/host relationship using these animals. Adelle penguin, Emparror penguin, phytoplankton, other zooplankton, fish, krill, squid, orabeater seal, weddal seal, leopard seal, tooth whale, and Balon whale.

Plzz hurry im being timed during times of vigorous physical activity, muscles require a constant supply of oxygen. how does the body respond to these needs? a. breathing rate and heart rate both decrease. b. breathing rate and heart rate both increase. c. heart rate decreases, but breathing rate remains stable. d. breathing rate increases, but heart rate remains stable.

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Why has two different alleles for the same trait?