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
Studentka2010 [4]
3 years ago
5

What two structures would provide a positive identification of a plant cell under a microscope? a)cell wall, mitochondria b)plas

ma membrane, large central vacuole c)ribosomes, chloroplasts d)cell wall, chloroplast
Chemistry
2 answers:
lutik1710 [3]3 years ago
6 0

<h2>Answer:</h2>

The correct answer is option D which is cell wall, chloroplast.

<h3>Explanation:</h3>
  • Here positive identification means such features in plant cell which are significantly distinguishes plant cell from animals cells.
  • Cell wall is outer envelope type structure present around the cell membrane. It is not present in animal cells.
  • Chloroplasts are plasmids. These organelles are distinguished structure of photosynthesizing cells.
  • Hence only plant cells have chloroplast while chloroplast are absent i animal cells.
  • So from looking at chloroplast and cell wall we can identify a plant cell.
olga55 [171]3 years ago
3 0

Cell wall, Large central vacuole, Chloroplasts

You might be interested in
Potassium solid and aqueous zinc chloride react to produce what?​
KonstantinChe [14]

K (s) + ZnCl (aq) ====》 KCl ( aq) + Zn (s)

6 0
3 years ago
If predators A and B prey upon the same species and predator A is eliminated, the population of predator B will likely _________
trasher [3.6K]

Answer: B. Increase because there will be more resources for the remaining predators

5 0
3 years ago
Read 2 more answers
Our garbage gets taken to the _______ fill. fill in the blank
Archy [21]
There are plenty of things that could fill in that blank.  I'm going to go with land.  
<em>Our garbage gets taken to the <u>land</u> fill.</em><em />

7 0
4 years ago
The hydrogen-line emission spectrum includes a line at a wavelength of 434 nm. What is the energy of this radiation? (h= 6.626 x
Andrews [41]
Wavelength = 434nm = 434 x 10⁻⁹m
planck's constant = <span>h= 6.626 x 10 ⁻³⁴ J
E =?
by using the formula;
E = hc /</span>λ
value for c is 3 x 10⁸ m/s
E = (6.626 x 10 ⁻³⁴ J)(3 x 10⁸ m/s) / 434 x 10⁻⁹m
E = 1.9878 x 10⁻²⁵ / 434 x 10⁻⁹m
E = 4.58 x 10⁻¹⁹ joules

6 0
3 years ago
What is common about the elements of a period? Select all that apply. They have the same number of electron energy levels. They
Flauer [41]
A period is the horizontal row of elements in the periodic table and they are numbered from one to seven. In the same period, atomic number increases from left to right. Elements in the same period have the same number of electron energy levels and they transition from a metal to noble gas.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which type of radioactive particle (alpha, beta, or gamma) is most harmful to humans, and why? Alpha particles, because they are
    10·2 answers
  • Which of the following compounds has an atom with an unfilled valence shell of electrons? And why?A. H3O+B. BF3C. CH3OHD. NaI
    6·1 answer
  • A solution has a pH of 4.20. Using the relationship between pH and pOH, what is the concentration of OH−?
    15·2 answers
  • What solid can be formed from a net diagram that has 2 congruent circles and 1 rectangle?
    8·2 answers
  • What is silica sand used for?
    11·1 answer
  • Explain the differences among nonpolar covalent bonds, polar covalent bonds, and ionic bonds.
    7·1 answer
  • The type of reaction in a voltaic cell is best described as a
    6·2 answers
  • True or false water and salt are examples of elements
    10·2 answers
  • What ion does carbon form
    11·1 answer
  • How do you name AsO3
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!