What is the path of the electrical impulse that travels through the heart causing the atrial-ventricular contraction?

Which organelle contains both DNA and RNA? nucleus ribosome mitochondria Golgi apparatus

Of the choices below, which best describes the effect predation has on the predator/prey organisms involved in the relationship? a. benefit ... benefitb. benefit ... harmedc. no effect ... benefitd. harmed ... harmede. benefit ... no effect

How can resources affect an ecosystem?

what is the ecosystem of fungi, what is the ecosystem of snails, what is the ecosystem of earthworms, what is the ecosystem of a pill-bug?

Whole animal cloning puts a nucleus from a cell of one animal into A. the chromosome of a bacterium. B. the plasmid of a bacterium. C. an egg cell from another animal. D. a sperm cell from another animal.

Which biology term best describes a wooden table

Which one of the following choices can be added to increase the creaminess the nutritional value of soup without adding fat

Why would an ecosystem be unable to sustain an increase in carnivores? A There is not enough prey. B The carnivores now have more space. C Plant growth increases. D It is a marine ecosystem.

What was the most important result of the meireki fire of 1567 in edo?

Scientists study the biosphere to examine the relationship between biotic and abiotic factors that impact the entire planet and the hierarchy of life.