Biology Answers

Why uracil concentration increases in ornithine transcorbamylase deficiency?

During anaphase the centromere of the chromosome split

Describe the features of bacterial (prokaryotic) cells

palisade cells near the top of the leaf contain many chloroplasts. Which of the following best explains why?

You need to identify structures within a cell using a microscope. However, the image appears very blurry even

though you have a high magnification. What are some things that you could try to improve the resolution of the

image? Describe the most basic factors that affect resolution when you first put the slide onto the stage; then considermore specific factors that could affect resolution for 40⨯ and 100⨯ lenses.

name the psychologists involved in the experiments of photosynthesis

What is the difference between and exon and an intron?

The enzyme that is secreted from the small intestine and completes the action of another enzyme is secreted from stomach is?

"Increased Soil salinity happens due to accumulation of large amount of soluble salts in the soil. this can have a lot of harmful effects on plants such as retardation of the growth as a result of reducing the amount of water absorbed". Explain this based on what you have studied.

Which statement about nitrogen is FALSE?

1. Plants are the only organisms that need nitrogen
2. Nitrogen gas is abundant in our atmosphere
3. Some bacteria can convert nitrogen gas to usable nitrogen
4. Plants need nitrogen to make proteins

When animals die and their bodies are not fully decomposed, they…

1. turn into fossil fuels
2. turn into water
3. turn into soil
4. evaporate

Nitrogen Fixation:

1. The process by which nitrogen in the atmosphere is changed into a form that can be used by plants
2. The large source of carbon-based compounds found within natural and engineered, terrestrial and aquatic environments
3. Life
4. The movement of nitrogen through living and nonliving things