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
Doss [256]
3 years ago
12

What is the half life for the mercury sample?

Biology
1 answer:
zimovet [89]3 years ago
7 0

Answer:

A

Explanation:

Since the chart is around 48 when at 50%.

You might be interested in
You are examining the phylogenic relationship of a newly discovered plant species (Species 2). You amplify the RUBISCO barcode a
frozen [14]

Answer:

a. Inversion

b. Duplication

Explanation:

Inversion has the name suggest, has to do with a segment of DNA being reversed from end to end.

In this case here,

Inversion is taking place here.

species 1 ATGCAAATTTGGGCCCATGAATGGTTGCAA

species 2 ATGCAAAAATTTTGGTACGCCGAATGGTTGCAA

Therefore, the sequences in bold in species 1 are observed to be reversed end to end in species 2.

Deletion ❌❌

I am sure it's not feasible because deletion entails removal of a few sequences.

It can be seen that species 2 is longer than species 1, which gives another reason why deletion is not feasible too, as no sequences are seen to be deleted.

I believe duplication is feasible since AATT sequences are repeated once.

Our final answer,

inversion and duplication occur here.

4 0
3 years ago
Part A: Design a food chain with four trophic levels, and identify the organism in each level. What happens to energy as it trav
Brums [2.3K]

Answer:

Part A

Part B =

Explanation:

A)

B) Many humans are omnivores. They consume both plant and animal material. Thus, they may be on the third or even fourth trophic level. (For example, if you consume beef (cows are herbivores), you are a part of the third trophic level)

7 0
3 years ago
The __________ in a bridged network will be the source of the greatest loss in the transmission.
aksik [14]

Answer;

Free Space Path Loss

The Free Space Path Loss in a bridged network will be the source of the greatest loss in the transmission.

Explanation;

-Free-space path loss (FSPL) is the loss in signal strength of an electromagnetic wave that would result from a line-of-sight path through free space (usually air), with no obstacles nearby to cause reflection or diffraction.

-Free-space path loss is proportional to the square of the distance between the transmitter and receiver, and also proportional to the square of the frequency of the radio signal. This value is usually calculated by discounting any obstacles or reflections that might occur in its path.

7 0
3 years ago
Select the correct statement about cardiac output.
Alexeev081 [22]

Answer:

<h2>C. A slow heart rate increases end diastolic volume, stroke volume, and force of contraction.</h2>

Explanation:

Cardiac output:  The volume of blood the heart pumps via the circulatory system per minute is known as cardiac output.  

Stroke volume : The volume of blood ejected by the left ventricle in one contraction is called or known as stroke volume and it  with  heart rate  defines the cardiac output.

Cardiac output, is :  A slow heart rate increases end diastolic volume, stroke volume, and force of contraction.

3 0
3 years ago
What shows the flow of energy in a food chain?<br> WILL MARK BRAINLIEST
soldi70 [24.7K]

Do they have a picture for this question since you said "Shows"?

3 0
2 years ago
Other questions:
  • Choose the magma type which is most viscous: <br> basaltic <br> andesitic<br> rhyolitic
    8·2 answers
  • It is believed that during tha late cretaceouse period sea levels rose drastically resulting in about a thirdbof earths present
    5·1 answer
  • Samuel always receives a painful shock when he turns on the lamp in his study. after a while, samuel refuses to touch the switch
    9·1 answer
  • The rate at which materials enter and leave the cell depends on the cells
    11·1 answer
  • What is the purpose of natural selection
    14·2 answers
  • What are some positive effects that the Sun has on Earth? *
    11·1 answer
  • What route is used to make and export proteins from the cell?
    12·1 answer
  • Someone please help me out!!!!!
    7·1 answer
  • Please fill out the Punnett Square with the correct Alleles, then answer the questions.
    15·2 answers
  • Which nutrients are present in solution x?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!