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
Ksivusya [100]
3 years ago
9

Jon is researching the oxygenation of Earth’s atmosphere. Which unicellular organism do biologists consider to be the main contr

ibutor to that process?
A. paramecia
B. amoebae
C. dinoflagellate
D. cyanobacteria

Answer is D. cyanobacteria
Biology
1 answer:
andriy [413]3 years ago
7 0
Answer is D.... Cyanobacteria
You might be interested in
A _ moves parallel to the shore
Grace [21]
A longshore current moves parallel tho the shore. longshore currents are shallow water currents. 
7 0
3 years ago
Is there a Genetic Basis for Adapting to Life at High Altitudes? A team of scientists from the United States and China set out t
Oliga [24]

Answer:

Looking at tibetan highlanders who thrive at high altitudes- normally that would make us sick- they have adapted, 60% oxygen- could pose huge health issue (live with 10% less oxygen in blood than us)

Explanation:

Evolutionary adaptations- involve a change in the genetic makeup to help individuals survive in environment. Tibetans have adaptations to let them function at high altitudes

7 0
3 years ago
What is traslocation​
stira [4]

Answer:

The exchange of chromosome segment between non-homologous chromosomes is called translocation.

It is of two types:

  • Reciprocal translocation

There is an exchange of chromosome segments between two non- homologous chromosomes in reciprocal translocation.

  • Non- reciprocal translocation

A part of chromosome is translocated from one non-homologous chromosomes to other so that one chromosome becomes deficient and another non-homologous chromosome gains the piece of chromosome and becomes long.

Hope this helps...

Good luck on your assignment..

3 0
2 years ago
What was the purpose of the Apollo space mission?
Flura [38]

Explanation:

Apollo's Goals

The national effort that enabled Astronaut Neil Armstrong to speak those words as he stepped onto the lunar surface fulfilled a dream as old as humanity. Project Apollo's goals went beyond landing Americans on the moon and returning them safely to Earth. They included:

Establishing the technology to meet other national interests in space.

  1. Achieving preeminence in space for the United States.
  2. Carrying out a program of scientific exploration of the Moon.
  3. Developing human capability to work in the lunar environment.
5 0
2 years ago
Read 2 more answers
An organisms cells include organelles and a cell wall. In which taxonomic group or groups might the organism be classified.
Hunter-Best [27]

Answer:

Plantae, Fungi, or Protista

Explanation:

3 0
3 years ago
Other questions:
  • Versification is associated with which of these
    5·1 answer
  • What is the combination of an electrical gradient and a concentration gradient called?
    15·1 answer
  • The fibrous mat that serves s underground feeding network for fungi is called the ___
    15·1 answer
  • SOLAR ENERGY THAT HAS BEEN ABSORBED BY THE HYDROSPHERE IS TRANSPORTED AROUND THE EARTH BY
    13·1 answer
  • Which of the following statements regarding membrane transport is false?
    10·1 answer
  • A Mercator projection map shows?
    15·2 answers
  • HIV weakens the immune system by killing
    14·1 answer
  • (10 points) What term is used to describe Earth's early atmosphere?
    11·1 answer
  • What would two different species
    7·1 answer
  • Please help me ASAP please and thank you have a wonderful day/night.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!