What cellular structure must oxigen cross to get from the outside to the the inside of an animal cell?

1) the nucleus

2) the cytoplasm

3) the plasma membrane

4) the cell wall

What are trophic pyramids & how is energy transferred through them?

How does the combination of electrons, protons, and neutrons result in the neutral charge of an atom

Sister taxa Sister taxa represent a polytomy. represent the common ancestor of taxa. diverge from all other lineages early in the history of the group. represent groups of organisms that share an immediate common ancestor.

True or false: the question "how much precipitation is needed to increase the amount of water in a lake by 2 feet?" Can be answered using a scientific approach

When the production of the beta amyloid precursor protein, which normally produces neurons, goes away and produces clumps of cells that trigger inflammation and deterioration of nerve cells, this is called

Tulang rusuk yang bersambung dengan tulang punggung tetapi tidak berhubungan sama sekali dengan tulang dada

Animals can undergo lactic acid fermentation. A) true B) false

1 What is the structure enters and leaves that regulates what the cell?

Sharks and their relatives are the first group of animals with jaws. why are jaws a significant evoluntionary development

True (bubble A) or False (bubble B) : Mutations caused by UV light will favor mutations that cause changes to protect the cell from UV light