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
Stolb23 [73]
3 years ago
5

What does the earliest evidence of life look like in the fossil record​

Biology
1 answer:
soldier1979 [14.2K]3 years ago
5 0

Answer:

Scientists have discovered what they say could be fossils of some of the earliest living organisms on Earth. They are represented by tiny filaments, knobs and tubes in Canadian rocks dated to be up to 4.28 billion years old.

Explanation:

You might be interested in
Outside the
zysi [14]

Answer:

An incubator.

Explanation:

Most enzymes work best at about 37 °C and start to denature around 40 °C.

Thus, the student should use a laboratory incubator, which is essentially an oven that can heat a biological sample to a set temperature.

This model shown below reaches a maximum temperature of 62° C, and its heat controller maintains temperatures within ± 0.5 °C°.

6 0
3 years ago
A parasite moving between individuals other than parents and their offspring uses _____ transmission.
lesya692 [45]
A parasite moving between individuals other than parents and their offspring uses horizontal transmission.

Horizontal transmission is the transmission of infections between (parasites) that are not in a parent-child relationship (vertical transmission). Horizontal transmission may include the carriers or <span>vectors which are other species. Transmission, in that case, occurs via the bite of the vector (an infected organism), like in malaria.</span>

5 0
3 years ago
A food chain includes grass, grasshopper, and an owl .what would happen if very dry weather killed the grass?
yuradex [85]
The grasshopper would die
5 0
3 years ago
Read 2 more answers
Why did the xyy chromosome theory fall out of favor as an explanation for criminal behavior?
exis [7]
XYY disorder is a hereditary condition in which a human male has an additional male (Y) chromosome, giving an aggregate of 47 chromosomes rather than the more regular 46. The "XYY" chromosome hypothesis drop out of support as a clarification for criminal conduct is on account of thought most lawbreakers don't have XYY and everybody with XYY is not a criminal
4 0
2 years ago
What is true about one strand of DNA?
weeeeeb [17]
One strand of DNA contains many proteins. 
5 0
3 years ago
Read 2 more answers
Other questions:
  • A third species of kangaroo rat is introduced into the habitats of the two species from Question 5. If this third species is bio
    6·1 answer
  • What is the meaning of testoterone
    12·1 answer
  • Chemical reactions that release energy
    10·1 answer
  • Which risk factor is associated with mixing new food with already on a buffet?
    7·1 answer
  • 16. What are the substances that constitute the chromatin? What is the difference between chromatin and chromosome?
    14·1 answer
  • _____ transport(s) food from the leaves to the roots. Root hairs Root caps Phloem Surface cells
    7·1 answer
  • Pls help me with this I would really appreciate it
    14·1 answer
  • Explain how plants and animals use nitrogen?​
    13·2 answers
  • 6. Before the 17 century, what did people believe the solar system looked like?
    7·2 answers
  • 1. W pewnym małżeństwie zarówno mężczyzna, jak i kobieta mają grupę krwi AB. Podaj genotyp mężczyzny i kobiety, a następnie okre
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!