State why most biologists consider RNA to be life's first coding system.

Andesite has large crystals surrounded by fine-grained minerals. Which term describes the texture of andesite? A. Porphyritic B. Granitic C. Basaltic D. Course-grained

Which of the following is the process of introducing a small, nontoxic amount of a foreign substance (such as a pathogen) into the body to teach the body how to fight the disease? epidemiology o vaccination o genetic engineering o antibiotics DONE

A bacterial gene (gene A) ordinarily makes a protein that binds to DNA. A nonsense mutation of gene A decreases the expression of another gene, gene B. We can conclude that (A) gene A is a positive regulator of gene B.

The level of security in terms of the corresponding bit length directly influences the performance of the respective algorithm. We now analyze the influence of increasing the security level on the runtime.

Why is carbon footprint important?

One factor that drives atmospheric circulation is the movement of air from warm equatorial areas to cooler areas.

In a species of corn, the diploid number of chromosomes is 20. what is the number of chromosomes found in each of the normal egg cells produces by this species?

How do deciduous trees in other parts of the world most likely respond to seasonal changes?

Which of the following is NOT true of phospholipid bilayers? A. The interior of phospholipid bilayers is a highly hydrophobic environment. B. Membrane budding requires transient breakages in the bilayer membrane. C.

Explain the difference between self pollination and cross pollination