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
sertanlavr [38]
2 years ago
10

The ancient fish fossils were dated using C-14. If 1/16 the original amount of C-14 remains in the skeletons, approximately how

old are the fish? A) 15,000 years B) 17,000 years C) 22,800 years D) 45,600 years
Biology
1 answer:
DedPeter [7]2 years ago
3 0

c, 22,800 (4 half lifes, 1/2, 1/4, 1/8, 1/16)

You might be interested in
Write the role of HCL in digestion
irga5000 [103]

Answer:

Hydrochloric acid contributes to protein digestion by supplying H+ which activates pepsinogen, the precursor to pepsin. Pepsinogen is secreted by chief cells in the gastric glands of the body and antrum of the stomach.

Explanation:

˙˚ʚ(´◡`)ɞ˚˙

8 0
2 years ago
Read 2 more answers
An unknown disease or a well-known disease that suddenly becomes harder to control is called
adell [148]
D. a viral disease because it is known and unknown and spreads.
8 0
2 years ago
In science class, Maria observes a white-colored cut flower. She sees that the petals turn red when the flower is sitting in a v
GuDViN [60]

To confirm the above hypothesis, Maria should perform an experiment to prove that xylem is responsible for the transport of coloured water through the plant. This is called the ascent of sap.

A suitable plant having a tender, semitransparent stem should be selected. The root system of the plant should be cut off and the twig has to be placed half-immersed in a coloured solution of water for about one hour. Later, when the plant is observed, parallely running streaks of coloured water can be seen through the semitransparent stem and other parts of the plant indicating that the xylem is involved in the upward movement of water.

5 0
3 years ago
Read 2 more answers
Along what types of tectonic plate boundaries <br> are volcanoes generally found? Why?
Gnesinka [82]

Answer:

Divergent plate boundaries because the separating of the tectonic plates allows for the lava to push its way through the rift and escape to Earth's surface.

8 0
3 years ago
Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies. true false
dolphi86 [110]

Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies. yes this is true

  • Our adaptive immune system protects us from infection-related mortality. An new-born born with a significantly compromised adaptive immune system may die shortly unless extreme steps are taken to isolate it from a wide range of infectious agents such as bacteria, viruses, fungi, and parasites.
  • The purpose of adaptive immunity is to eliminate invading infections as well as any harmful chemicals they create. Because these reactions are damaging, it is critical that they only occur in response to molecules that are alien to the host and not to molecules that are native to the host. The adaptive immune system's capacity to identify what is foreign from what is self is a fundamental feature.

To learn more about adaptive immune.

brainly.com/question/17094294

#SPJ4

6 0
1 year ago
Other questions:
  • How are simple sugars used for energy compared to more complex sugars like the starch in pasta?
    9·2 answers
  • Which of the following is a property of the stem of a dicot plant?Select one of the options below as your answer:A. ground tissu
    6·1 answer
  • What enough stress build up in a bottle rock the rock brakes causing a
    15·1 answer
  • According to the cell theory, which structure contains cells?
    12·2 answers
  • What type of species is most likely to lead to extinction of another species? a Invasive species b Native species c Genetically
    5·1 answer
  • Need help plzssssssssssssssssss
    9·1 answer
  • What is the difference between the central nervous system and the peripheral nervous system?
    6·1 answer
  • Describe a spring tide and how does high and low tide change during a sprint tide?
    11·1 answer
  • The proccess of photosynthesis can be represented by the chemical formula _________
    14·1 answer
  • Which of the following could possibly increase the total amount of energy the sparrow population receives within the food chain?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!