Darwin's theory predicts that variations can eventually produce a new species. Yet, scientists have never actually seen one living species give rise to another. Explain why not.

Peer-raised macaques show neurological differences from those macaques raised by adults; they have less developed neural networks using the neurotransmitter serotonin. This is an example of a/an

What is ecology in biology?

How do seeds that a bird eats becomes energy that the bird uses to fly?

Which planet do most known extrasolar planets most resemble? A. Pluto B. Mercury C. Mars D. Jupiter

Three of theseThree of these processes normally consume oxygen. Which process produces oxygen? A) combustion Eliminate B) respiration in animals C) photosynthesis in plants D) operation of an acetylene torch processes normally consume oxygen.

Sponges are made up off

The maxinmum numbers of individuals of a particular species that a partiticlar environment can support is its

What is the layer of the atmosphere 20 km above Earth's surface

An experiment was conducted to determine which type of fruit attracts the most fruit flies. Equal sized pieces of apple, pear, and banana were placed in separate containers at different areas around the school.

In the F2 generation of Mendel's crosses, A. all plants had the dominant trait. B. half of the plants had the dominant alleleC. all plants had both the dominant and recessive alleles. D. one in four plants had two alleles for the recessive trait.