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
Alex Ar [27]
2 years ago
6

15. These photosynthetic organisms can live in extreme environments, sometimes harnessing energy from chemicals, and are among s

ome of the oldest organisms on Earth.
Οalgae
O protists
O cyanobacteria
O diatoms
Biology
1 answer:
maxonik [38]2 years ago
4 0

Answer:

cyanobacteria

Explanation:

the answer of this question the 3rd one, because if you were to think and look up the oldest Bactria it would be that answer.

You might be interested in
What are the three ingredients required for a healthy relationship
zavuch27 [327]
In my opinion, it always depends on the partner how they are going to maintain their healthy relationship.
But for my opinion, here are the top 3 ingredients for a healthier relationship:
1. Communication - it is always important that you and your partner are being open with each other and being honest
2. Trust - trust is one of the most important and essential ingredients of healthy relationships
3. Commitment - how can you be in a healthy relationship if you are not commited?
3 0
3 years ago
If you receive the same allele for a specific gene from both of your parents, then you are ______________ for this gene.
IrinaK [193]
B - Homozygous, because both alleles are the same
8 0
2 years ago
What is the purpose of interphase in the eukaryotic cell cycle?
andrey2020 [161]

Correct answer: B). Cell growth

The Interphase is often referred to as a metabolic phase of the cell cycle because in this phase the cell obtains nutrients, read its DNA, conduct other cell functions. Most of the eukaryotic cell spend most of their time in interphase, it is also called as a resting phase.

The main purpose of interphase is to prepare and check the conditions in order to conduct the successful cell division. In this phase, the cell prepares itself for the division. In this phase, the cell organelles double in number and replication of DNA takes place, and the synthesis of protein, which is required for cell growth are made in this phase of cell growth.





5 0
3 years ago
Read 2 more answers
With what portion of the brain is the pituitary associated?
MrRa [10]

The answer is the hypothalamus. It is a portion of the brain that comprises a quantity of small nuclei with an assortment of functions. One of the most significant purpose of the hypothalamus is to connect the nervous system to the endocrine system through the pituitary gland.

7 0
3 years ago
The lac operon controls the transcription of a group of genes involved in metabolizing lactose in E. coli. A group of scientists
Xelga [282]

Answer:

The correct answer would be - medium with lactose present and glucose absent.

Explanation:

There are genes present in lac operon that takes part in the lactose metabolism. These genes expressed only if a medium has lactose in absence of glucose.

In the absence of glucose and lactose is present, due to inducer the lac repressor is removed from the operator. This leads to the binding of CAMP to DNA as the CAMP levels are high. It helps in high transcription levels b binding RNA polymerase to promotor.

3 0
2 years ago
Other questions:
  • In the Susan Solomon, Web of Science article, what does the reader uncover in the abstract?
    15·1 answer
  • What animals eat annual flowers?
    8·1 answer
  • Which of the following is not a part of Darwin’s theory of evolution?
    6·2 answers
  • Which region of Earth’s crust experiences the least amount of pressure? crust mantle outer core inner core
    11·2 answers
  • Most of the worlds fossil fuel reserves are made up of
    7·1 answer
  • Bacteria live in a variety of locations one of which is the human mouth. Which explanation supports the wide variety of bacteria
    9·2 answers
  • Nucleotide definition
    8·1 answer
  • A(n)<br> is a group of organisms that can mate and produce offspring that can mate.
    11·1 answer
  • What proportion of each parent plant's genetic material does each offspring plant have?
    8·1 answer
  • Which of the following is true regarding negative feedback responses?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!