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
Vadim26 [7]
3 years ago
7

Stromatolites are rocky structures that generally form in shallow waters from the binding of sediment by microbial biofilms. Str

omatolites are typically hypothesized to be formed from the presence of cells that bind these grains together. If the appearance of the stromatolites in the fossil record were to indicate the emergence of life on earth, approximately how old are the oldest stromatolites on earth? A) 2.6 billion years old B) 3.6 billion years old C) 4.6 billion years old D) 400 million years old
Biology
1 answer:
hjlf3 years ago
7 0

<u>Answer:</u>

Approximately, the oldest stromatolites are 3.6 billion years old on earth.

<u>Explanation:</u>

  • Stromatolites is not only oldest earths fossil but conspiracy in that they are singular visual portal in deep time on earth.
  • It is defined as laminated accumulation structure that is they stick up above sea floor .
  • Stromatolite buildings includes oldest fossils which are 3.5 billions old when the earth were too unfriendly to support life.
  • The study of  fossil age, evolutionary, method of formation are known as paleontology.
  • These specimens are considered as old fossils which are around 3.4 to 4.1 billions years old.
You might be interested in
What is one health issue that biology can help you to better understand
Annette [7]
Genetic diseases is one of the topics that will be covered in biology


4 0
3 years ago
Will you help me with 6?
Dovator [93]

Answer:

the answer maybe A or C

Explanation:

the answer maybe A or C

6 0
3 years ago
thyroxine can trigger growth, temperature tolerance, or osmoregulation depending on the organism in which it is produced. which
larisa [96]

The primary hormone that the thyroid gland releases into the bloodstream is thyroxine. It is the inactive form, and organs like the liver and kidneys convert the majority of it into the active form triiodothyronine.

The body's metabolism, cardiac and digestive processes, muscle control, brain growth, and bone maintenance are all significantly regulated by thyroid hormones.

Hypothyroidism refers to the thyroid gland producing too little thyroxine. It could be brought on by autoimmune conditions, inadequate iodine consumption, or the use of specific medications. Sometimes there is no known cause. Untreated throxine before birth or during infancy can result in mental disability and stunted growth because thyroid hormones are crucial for both physical and mental development.

Adult hypothyroidism results in a slower metabolism. It may cause symptoms like weariness, a diminished ability to tolerate cold conditions, a low heart rate, weight gain, decreased appetite, impaired memory, sadness, muscle stiffness, and decreased fertility. For further details, read the article on hypothyroidism.

To learn more about thyroxine, refer: brainly.com/question/15557539

#SPJ4

3 0
1 year ago
The process whereby messenger rna is made from a dna template is ____.​ translation transcription expression​ sequencing ribosom
Nataly_w [17]

<span>The answer is transcription. It is mediated by RNA polymerase enzyme that reads the DNA template and makes an RNA strand that is antiparallel and composed of nucleotides complementary to the DNA strand. This process is the first step of gene expression. </span>






5 0
3 years ago
What is the energy transfer in the light from space from the sun to the solar collector
swat32

Radiation is the energy transfer in the light from space from the sun to the solar collector.

<u>Explanation:</u>

On the earth itself the solar collector is situated, here energy must travel from sun to the Earth through vacuum, but energy cannot be transmitted through vacuum by either conduction like molecular collision or convection like fluid movement due to difference in densities, as both of the process need medium. Thus energy from sun to the Earth is traveled through radiation carrying electromagnetic waves, many of these are light waves. Thus energy transfer in the light from space from the sun to the solar collector is processed through radiation.

8 0
3 years ago
Other questions:
  • 2.
    11·1 answer
  • How do ocean ridges and deep sea trenches support the theory of seafloor spreading?
    11·2 answers
  • Fill in the blank: in gila monsters, the organ in which water from urine is reabsorbed into the bloodstream is the _____.
    8·1 answer
  • Explain the principle of chemiosmosis.
    14·1 answer
  • Nutrients are delivered and waste products are carried away from the cells of the posterior segment of the eye by blood vessels.
    5·1 answer
  • A certain species of rabbit can have either black or grey fur. The allele for black fur is dominant over the allele for grey fur
    7·1 answer
  • WHO AM I? if you’re correct if will give you brainlist (dont know how to spell it)
    15·1 answer
  • Fatty acids that the body cannot produce are called _______
    7·2 answers
  • Dogs are a result of which of the following processes?
    13·1 answer
  • Which organisms does the emperor penguin consume in addition to squid
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!