2. Eukaryotic mitochondria consume exactly how many substrate molecules, in their production of six carbon dioxide molecules and twelve water molecules, during aerobic respiration?
A. one C6H12O6 molecule, six H2O molecules, and six O2 molecules are consumed
B. twelve C6H12O6 molecules, six H2O molecules, and three CO2 molecules are consumed
C. six H2O molecules and twelve CO2 molecules are consumed
D. six C6H12O6 molecules, three H2O molecules, and six CO2 molecules are consumed
E. twelve H2O molecules and six O2 molecules are consumed

the correct answer is sex-linked recessive.

i just took the test

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.

answer;

-vessels in the chest

the diagnosis of angina pectoris literally means "vessels in the chest"

explanation;

-angina pectoris is the medical term for chest pain or discomfort due to coronary heart disease.it is the chest pain due to an inadequate supply of oxygen to the heart muscle. the pain is typically severe and crushing, and it is characterized by a feeling of pressure and suffocation just behind the breastbone.

agina pectoris is caused by reduced blood flow to your heart muscle. the blood carries oxygen, which the heart muscle needs to survive. when the heart muscle isn't getting enough oxygen, it causes a condition called ischemia