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
mixer [17]
3 years ago
7

Which pair of lab instruments would a student use to measure the density of seawater?

Biology
1 answer:
MrMuchimi3 years ago
5 0
It would be best to use a glass graduated beaker for the volume and a digital scale for the mass
You might be interested in
PCR (polymerase chain reaction) is an excellent method of generating copies of target DNA. If a single piece of double stranded
enyata [817]

Answer: After 3 rounds, 8 segments having 2 original strands on different segments will be present.

Explanation:

The polymerase chain reaction selectively and repeatedly copy the double stranded DNA (dsDNA) in the PCR machine.

1st round:

Single piece of double stranded DNA (dsDNA) unwinds in two seperate strands, before complementary nucleotides are synthesized to establish double helix.

2nd round:

The two dsDNA yields 4 segments before complementary nucleotides are synthesized

3rd round:

The four dsDNA yields 8 segments before complementary nucleotides are synthesized.

Therefore, at the end of 3 rounds, the two original strands will be present on the 8 different segments of copied DNA.

8 0
3 years ago
A 35-year-old male complains of a "pressure" type headache to the back of his head and neck. He states that he woke up with the
tigry1 [53]

Answer:

Answer is D. Tension

Explanation:

Tension headache is a type of headache that can be described as feeling of dull or moderate pain in the head, which can be inform of a tightness around the head and the neck.Tension headache is also known as stress headache.

It has been discovered that, various activities like driving for a long period of time, staring to a computer for a long period and exposure to cold temperature, can cause tension headache.

The following activities can be developed to reduce or avoid tension headache.

* Drinking a lot of water.

* Regular exercise.

* Sleeping very well

* Limiting stress

* Eating foods like almond and walnut.

In this case, the complaint of a 'pressure' type headache to the back of the head and neck by the man, was a typical feeling ,synonymous to tension headache.

3 0
3 years ago
Complete each statement by writing the correct word or words.
ivann1987 [24]
1) transcription.-
2)Transcribed.-
3)Cells nucleus.-
4)Cytoplasm.-
5)RNA polymerase.-
6.-
7)Introns.-
8)Exans.-

Hope this helps!
5 0
3 years ago
Oxidising agents *
NNADVOKAT [17]

Answer:

Option A. are mostly non-metals.

Explanation:

Oxidising agents are mostly non-metals because non metals gains electron from the metal during chemical bond and we know that oxidising agent is electron accepter not donar. For example, Sodium is a metal react with chlorine which is a non-metal so the sodium losses electron and this electron is gain by chlorine atom forming sodium chloride. In this example chlorine is a non-metal which gains electron.

8 0
3 years ago
DNA is made of two chains of nucleotides. Which type of bonds hold the chains together?
Leno4ka [110]
"Hydrogen Bonds" is the correct answer
3 0
3 years ago
Read 2 more answers
Other questions:
  • 8. Which malfunction within gamete formation results in nondisjunction?
    9·1 answer
  • Number 106 PLZ HELP!!! Will give brainiest
    7·2 answers
  • According to paleontologists, Funisia dorothea (a tubular organism found fossilized in Australia) reproduced in what way (or way
    10·1 answer
  • What is the result of dissociation of water? a) Formation of O-2 ions b) Formation of H+ and OH- ions c) Formation of H- and OH+
    8·1 answer
  • Which Organelle is only found in plant cells?
    5·2 answers
  • What is semipermeable
    11·1 answer
  • PLEASE HELP!
    13·1 answer
  • A food chain is represented below.<br> Grass - Cricket - Frog - Owl <br> This is food chain contains
    15·1 answer
  • Margo notices that waves start passing her more often. What can she conclude about the frequency and wavelength of the waves?
    12·1 answer
  • Which of the following is NOT an example of a physical change?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!