the answer is b) liquid or gas
A cell that is specialized to receive and transmit is called a neuron
Answer:
Zooplankton help other populations survive by keeping out other herbivores
Explanation:
This is because a keystone species are species that have large effect on the the habitat and through its effect they help to keep the ecosystem in existence. They make sure that the ecosystem exist. They help populations survive by keeping out herbivores and feeding on the algae. They help drive nutrients cycle and transfer energy from algae to invasive fish.
Metamorphic rock; because a rock that has added heat or pressure is metamorphic because it’s been chemically and physically changed