1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Karolina [17]
3 years ago
11

Please Help!! 15 points!!!!!!!!!

Biology
1 answer:
xz_007 [3.2K]3 years ago
6 0
For primary succession to occur, there must be a pioneer species or dirt/soil.

Over hundreds of years these “pioneer species” convert the rock into soil that can support simple plants such as grasses. These grasses further modify the soil, which is then colonized by other types of plants. Each successive stage modifies the habitat by altering the amount of shade and the composition of the soil. The final stage of succession is a climax community, which is a very stable stage that can endure for hundreds of years.
You might be interested in
Above 380C and below OoC the rate of photosynthesis decreases. Propose a hypothesis to explain why this occurs.
Effectus [21]

<u>Answer:</u>

<em>Enzyme activity decrease at these temperatures. </em>

<u>Explanation:</u>

Photosynthesis is facilitated by the action of various enzymes and involves light and dark reactions.  In <em>light reactions chlorophyll absorbs sunlight and creates ATP AND NADPH</em>. In dark reactions carbon is fixed using the <em>ATP and NADPH. </em>

The efficiency of all these activities depends on the activity of enzymes which depends on the temperature. The optimum temperature range where the enzyme activity is optimal is about <em>10°c - 20°c</em>. At low temperatures and high temperatures enzyme activity is less efficient.

<em>At a temperature above 38°c and below  0°c enzyme activity decreases. </em>

7 0
3 years ago
Why is it difficult to bond three phosphate groups to Adenosine?
ohaa [14]
I think that answer is they are like Opposite poles of magnet.

I really hope it’s right
3 0
3 years ago
What is the general shape of the epithelial cells that are nearest the lumen in an empty urinary bladder?
OverLord2011 [107]

The general shape of the epithelial cells that are nearest to the lumen in an empty urinary bladder is in multiple cell layers which are considered to be a stratified tissue and the cells in it are shaped in terms of the organ’s distention. This type of epithelial cell is the transitional epithelium.

3 0
3 years ago
You have a strain of bacteria that is defective for DNA glycosylase activity. You expose one culture of this strain to EMS and t
Scrat [10]

Answer:

Bacteria under successive rounds of selection may acquire genetic resistance to the treatment with mutagenic compounds including ethyl methanesulfonate (EMS).  

Explanation:

Artificial selection is a process known to generate resistance of the organisms under treatment. For example, this type of selection has been reported to generate resistance to the treatment with different chemical compounds including mutagenic chemical compounds (in this case EMS), antibiotic drugs, etc.

4 0
3 years ago
What is the phylum bacteria?
Dafna11 [192]
Phylum Bacteria are the major lineages(Known as Phyla or Divisions) of the domain bacteria.
5 0
4 years ago
Other questions:
  • Which organelles of a cell possess their own DNA?
    6·1 answer
  • A compound that prevents the separation of the homologous chromosomes in anaphase I is being studied. Which of the following que
    13·1 answer
  • The finches of the Galapagos are a perfect species to model evolution because it shows that beaks changed as a result of the env
    12·1 answer
  • Different mating habits cause two groups within a population to be less likely to mate with each other. as a result, reproductiv
    8·2 answers
  • Oxygen has an atomic number of 8. The n = 1 energy level has two electrons, and the n = 2 energy level has six electrons. Oxygen
    12·2 answers
  • Which element cycles through both photosynthesis and respiration
    8·1 answer
  • A prairie dog a hawk and a snake are all members of the same A.niche B.community C.Species D. Population
    6·1 answer
  • Before deciding on a medium to use, what should the presenter do?(1 point)
    7·1 answer
  • Please help I am on a timer.... Also this is 7th grade biology.
    11·1 answer
  • What is likely to happen when people have an external locus of control and believe they have a genetic predisposition to cancer?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!