mitosis
meiosis
ecology
biochemistry
cells and membranes
100
The DNA and chromosome content of daughter cells at the end of mitosis are this compared to the parent cell.
What is, the same
100
This event in meiosis belongs with the words synapsis, tetrads, and chiasmata.
What is crossing over
100
As you go up in trophic levels, only this much energy from the previous trophic level is available to the next.
What is 10%
100
These molecules lower the activation energy of biological reactions.
What are enzymes
100
These membrane bound structures give eukaryotic cells an advantage, in that they isolate specific reactions, increasing metabolic efficiency.
What are organelles
200
Theses cells do not exhibit density-dependent inhibition when growing in culture, and when they stop dividing, they do so at random points in the cell cycle, and they are not subject to cell cycle controls.
What are cancer cells.
200
In animals meiosis results in gametes, and fertilization results in this
What is a zygote
200
These types of species are ecologically dangerous when introduced into new habitats, especially if they have no natural predators, and/or are able to out-compete their native counterparts.
What are invasive species
200
Amino acids are joined at their amino and carboxyl ends via dehydration synthesis to form these molecules
What are peptides or proteins
200
If ATP breakdown (hydrolysis) is inhibited, which of the following types of movement across cell membranes is also inhibited? 

What is active transport or movement against a concentration gradient
300
In cell division, the mitotic spindle is made of ________, whereas the contractile ring is made of ________.
What are microtubules and actin
300
This is the result of meiosis
What is 4 haploid cells or gametes
300
In populations, crossing over, genetic transfer between bacteria, independent assortment, and random fertilization all work to increase this.
What is genetic diversity
300
These molecules are the building blocks of DNA and RNA
What are nucleic acids
300
"How is ATP used in the formation 
of 3-carbon carbohydrates" would be a useful question in investigating this cycle
What is the calvin cycle
400
Cells in the process of dividing subjected to colchicine, a drug that interferes with the functioning of the spindle apparatus, would be arrested at this stage.
What is metaphase
400
During this phase of meiosis, the centromeres of sister chromatids uncouple and chromatids separate.
What is anaphase II
400
this is a type of symbiotic relationship where both species involved benefit
What is mutualism
400
These molecules have a hydrophilic head, hydrophobic tails, and make up the general bilayer of the cell membrane
What are phospholipids
400
these organelles are thought to have evolved via endosymbiosis
What are mitochondria and/or chloroplasts
500
The two centromeres are arranged at opposite poles of the cell in this phase
What is metaphase
500
During which phase of meiosis does crossing over take place?
What is prophase I
500
in general, as you go up an energy pyramid, the biomass of the organisms on the next trophic levels up will do this.
What is decrease
500
this type of biomolecule consists of a central carbon, an H group, a carboxylic acid group, an R group, and an amino group.
What is an amino acid
500
cellular respiration consumes this molecule in the breakdown of food molecules to produce energy.
What is oxygen
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