What is the body's most sophisticated line of defense against pathogens?

Why even though all cells are composed of the same basic parts, the structure of cells can be very different?

What process is applied to identify mutations or errors in dna molecules

Witch contribution did Kepler make to viewing the solar system? A: He proposed the earth-centered model of the solar system. B: He proposed that gravity kept the planets in their orbit. C: He showed that planets moved in elliptical orbits.

How would i use the word dominant allele in a sentence.

Natural selection will allow on organism to live long enough to reproduce, thus passing down the successful trait. True False

America has 36 total chromosomes in each body cell. After meerkat cells undergo the process of meiosis each gamete will have how many chromosomes

The doctor said "The child is you, simply the best of you." What does this mean?

2. What is an investigation? What is a demonstration? How are the different?

In animals, embryonic stem cells differ from adult stem cells in that

Which are the two primary limiting nutrients for plant growth?