BIOLOGY HIGH SCHOOL

What Molecules are involved in a Nitrogen Cycle?

Answers

Answer 1
Answer:

The molecules which are  involved in a Nitrogen Cycle include the following:

  • Nitrate ions (NO3−)
  • Ammonium ions (NH4+)
  • Urea

Nitrogen cycle is the biogeochemical cycle which involves the conversion of

nitrogen into various forms. This helps to ensure adequate availability and

distribution of the element in the soil and in the atmosphere.

The following below are processes which ensures nitrogen distribution

  • Fixation
  • Ammonification
  • Nitrification
  • Denitrification.

Read more about Nitrogen cycle here brainly.com/question/1380063
Answer 2
Answer:

Answer:

The nitrogen cycle represents one of the most important nutrient cycles found in terrestrial ecosystems (Figure 9s-1). Nitrogen is used by living organisms to produce a number of complex organic molecules like amino acids , proteins , and nucleic acids .

Explanation:

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What does a plant let out during photosynthesis?

Answers

It lets out oxygen after photosynthesis.
A plant lets out oxygen and water after photosynthesis

Which two species of trout are most closely related

Answers

Answer:

     Trout is a freshwater fish found all over the world.Salmonidae is the only family of actinopterite fish belonging to the order Salmoniformes. Salmon and trout of the genus Salmo name this family and its order. Salvelinus fontinalis and Cynoscion nebulosus are examples of related trout by this family.

   

Spotted trout and Speckled trout are closely related

Which of the following is an example of gene flow?

Answers

When the genes propagate from one area to another. 
The founder effect happens when genetic diversity declines due to an external larger group of organism invades a set of current living population. An example of this process is when the British colonies invaded the Mesoamerican continent where native americans lived and were outrun by the British colones, especially since many wars were made and ethnic cleansing. 

Answer:

Pollen from a yellow daisy travels across a stream and pollinates an orange daisy.

Joel is comparing two slides showing chromosomes in a sperm cell and a skin cell of a dog. He finds that the sperm cell has 39 chromosomes. How many chromosomes can he expect in the skin cell?

Answers

Since a sperm cell contains half the number of chromosomes (a result of meiotic cellular division) as the body cells, the regular, diploid, cells would contain 78 chromosomes. You simply double the haploid to find the diploid or divide the diploid in half to find the haploid.

Answer:

B) 78 Chromosomes

Explanation:

Double of chromosomes in sperm cells.

Which of the following choices includes two structures that are found in plant cells, but not in animal cells?A.) cell wall
B.) chloroplasts , ribosomes
C.) lysosomes, mitochondria
D.) cell wall, large central vacuole

Answers

Answer:

the answer is d hope this helps

Which process allows organisms to keep internal conditions relatively constant despite changes in external conditions? Homeostasis



Hibernation



Hypothermia

Answers

Answer:

Homeostasis

Explanation:

Walter Cannon elaborated the concept of homeostasis from the investigations

carried out by Claude Bernard, creator of Experimental Medicine.

The concept of homeostasis, as Cannon formulated it in his capital work,  the Wisdom of the Body implies a dynamic equilibrium, maintained interactively by the constant dialectic between internal kinetics and  variations of the external environment. Homeostatic regulation is set to different  levels, from molecular-subcellular to suprapersonal or social, through the  global consideration of the individual as a whole . The study of isolated aspects of this systematic organization must give us, for  strength, a partial vision. Human functioning is always influenced by a  hierarchically organized activity of suprasystems and related subsystems.
Homestasis is correct.
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