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
jonny [76]
3 years ago
6

Photosynthetic cyanobacteria caused an increase in atmospheric levels of

Biology
1 answer:
tresset_1 [31]3 years ago
3 0

Answer:

oxygen in the environment

Explanation:

You might be interested in
In Humans, freckles are dominant to not having freckles.
Slav-nsk [51]
C 50%
Sorry I have to fill the rest with random characters djsjsndkjhsuxnshskshd
3 0
2 years ago
If enough heat is added to a gas, which of the following would most likely happen?
Anvisha [2.4K]

Answer:

I think the answer is D. it would become plasma

3 0
3 years ago
Read 2 more answers
The DNA of a prokaryote is arranged in a single coiled chromosome located in a region called the ____________ . Some prokaryotes
Varvara68 [4.7K]

Answer:

1. Nucleoid

2. Plasmid

Explanation:

Prokaryotes are groups of organisms characterized by the lack of a membrane-bound nucleus in their cell. Due to this, the genetic material (DNA) of prokaryotes are found naked i.e. not housed. The DNA of a prokaryote is arranged in a single coiled chromosome located in a region of the cell called NUCLEOID.

However, some prokaryotes e.g. bacteria carry genes on extrachromosomal pieces of circular DNA called PLASMID. Plasmids carry certain genes like antibiotic resistance genes.

7 0
2 years ago
A 35 year-old man presents with a testicular mass. Beta-HCG and Alpha-Feto Protein blood levels are normal. A radical orchiectom
makvit [3.9K]

Answer: Classic seminoma

Explanation:

The classic seminoma can be defined as the germ cell tumor of the testicles or mediastinum. It is a type of malignant neoplasm and is treated and curable stage of the cancer.

It has a survival rate of more than 95 % if it is detected during the early stages of diagnosis.

It originates in the germinal epithelium of the semniferous tubules. In this case the fertility of the person is not affected and sexual function also remains intact.

7 0
3 years ago
According to the image below, which season is about to begin in the southern hemisphere?
AfilCa [17]
The answer to this question is summer I know this for a fact cause I took biology last year your welcome 


5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the term for solid organic matter transported by wind, water, or glacial erosion?
    8·1 answer
  • Which of these is a function of the circulatory system
    14·2 answers
  • I need help on a science question
    6·1 answer
  • What would happen to the size of the carnivore population if the herbivore population increased?
    9·2 answers
  • Cheranita is experiencing the first stage of the general adaptation syndrome. an environmental stressor has triggered a process
    15·1 answer
  • Which of following is not a tool used in engineering and technology?
    13·1 answer
  • Kinetic energy is determinded by
    13·1 answer
  • WHAT MOST DIRECTLY ALLOWS PLANKTON TO GROW?
    5·2 answers
  • According to many scientists, which of these probably caused a major change in the composition of Earth's atmosphere? F the weat
    13·1 answer
  • Most earthquakes happen
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!