Which congenital heart defect occur in trisomy 13 trisomy 18 and down syndrome?

What is the plasma membrane of a cell

During meiosis, how many haploid cells (or gametes) are generated when one diploid eukaryotic cell divides? a. 1 b. 2 c. 3 d. 4

The best explanation for all these offspring being female is that

What are the dangers associated with the hole in the ozone layer

The data in the table were recorded during an investigation in which a paramecium was placed in a hypertonic salt solution. A 2-column table labeled Paramecium Contractile Vacuole Contractions has 5 rows.

Why does limestone often form cliffs in dry climates, but rarely form cliffs in wet climates?

16. Which of the following kingdoms contains prokaryotes? A. Eubacteria B. Protista C. Plantae D. Fungi

A molecule with the chemical formula C6H12O6 is probably a

In the ATP cycle, a phosphate group is cut off of ATP to form ADP, absorbing energy. ATP to form ADP, releasing energy. ADP to form ATP, absorbing energy. ADP to form ATP, releasing energy.

An action potential releases neurotransmitter from a neuron by opening which channels?