How can you determine if an igneous rock has had an intrusive or extrusive origin

In the beginning of the eukaryotic cell cycle what does the cell duplicate

Suppose a patient develops a myocardial infarction that disables the sinoatrial node. would the heart still pump blood to the aorta and the pulmonary trunk?

A scientific law is A. a universally accepted conclusion based on testing B. always changing as new evidence is presented C. based on new evolving theories, often debated in the scientific community D. one step toward forming a theory

Why can someone have cells with no y chromsome and other cells with a double - y chromosome?

DNA double helix does not have which of the following? antiparallel configuration complementary base pairing major and minor grooves uracil

As the polypeptide is elongating during translation, what is the ribosome doing?

A gazelle population nearly doubles in four months (March - June). Which statement below best explains this change in gazelle population? : The numbers of predators have increased. Food resources have diminished.

Canned food is prone to what if cooked at a low heat? 1. Food containing more nutrients 2. Better tasting food 3. Botulism 4. can be canned in thinner cans

How can changing ocean currents lead to climatic cooling?

What color of light is the best for photosynthesis