How many cells are in the average human brain?

778

Why is there little or no grass in the forest?

799

How does stomatal conductance increase in an elevated carbon dioxide environment?

1830

Define biotic potential?

325

Consider two linked autosomal genes. The dominant allele C of the first gene causes cataracts of the eye, whereas its recessive allele produces normal eyes. The dominant allele P causes polydactyly (an extra finger) whereas its allele (p) produces a normal number of fingers. A man with cataracts and normal fingers marries a woman with polydactyly and normal eyes. Their son has both polydactyly and cataracts and he marries a woman with neither trait. What is the probability that their first child will have cataracts and polydactyly?

2681

Explain what are analogies for mitochondria?

935

What is placenta?

1

What is duckering?

1123

What are the two big groups into which cells are classified?

851

Concerning enzymatic reactions how different, are the graphic curve of the variation of the speed of a reaction as function of substrate concentration and the curve of variation of the speed of a reaction as function of temperature?

1045

Why is triploblast more advanced than diploblast?

2233

Why algae Spirulina is called the food of the future?

2044

Explain the degradation of acrylamide?

2342

What are the main types of waste?

249

What is xylose? What is its chemical formula?

1157