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
lorasvet [3.4K]
3 years ago
7

EASY BRAINLIEST

Biology
1 answer:
Anastasy [175]3 years ago
8 0

Answer:

D) Both lack membrane-bound organelles and are single-celled.

Explanation:

The answer is D because the main difference between Archaea and Eubacteria is they differ in the formation of their cell wall. Archaea's cell walls are made of  uncommon lipids while Eubacteria have cell walls made of peptidoglycan.

You might be interested in
Explain what might have happened at the end of the archean to cause these orogenies to occur globally and synchronized.
Ket [755]
Trying to find the answer
3 0
3 years ago
Day and night are caused by A. the rotation of the Sun on its axis. B. the Sun completing a full orbit around the Earth. C. the
babymother [125]
Your answer is D. Because the Earth rotating on it's axis causes Day and Night
8 0
3 years ago
Read 2 more answers
An owl has good night vision because its eyes can detect a light intensity as small as 5.0 × 10-13 W/m2. What is the minimum num
Lady bird [3.3K]

Answer:

Thus, the minimum number of photons per second is 77.34

Explanation:

Light intensity, I_{min} =  5\times 10^{-13} W/m^{2}

Pupil has a diameter, d = 8.5 mm

                                      = 8.5 x 10^{-3} m

Radius of the eye, r = 4.25 x 10^{-3} m

∴ Area of the eye, A = \pi .r^{2}

                                 = 3.14\times \left ( 4.25\times 10^{-3} \right )^{2}

                                = 5.6\times 10^{-5} m^{2}

Let P_{min} be the minimum number of photons.

Therefore, P_{min} = I_{min} x A

                                              = 5\times 10^{-13} x 5.6\times 10^{-5}

                                             = 2.8\times 10^{-17} W

Thus the minimum number of photons is given by

N_{min}=P_{min}/E

where E = hc/\lambda

             = \left (6.63\times 10^{-34}\times 3\times 10^{8}  \right )/548\times 10^{-9}

            = 3.62\times 10^{-19} J

Therefore, N_{min} = \frac{2.8\times 10^{-17}}{3.62\times 10^{-19}}

                                              = 77.34 photons per second

Thus, the minimum number of photons per second is 77.34

4 0
3 years ago
Characteristics of Thallophyta​
bearhunter [10]

Explanation:

<h2>They are aquatic — found in moist or wet places.</h2>

<h2>They are autotrophic, and the reserve food is generally Starch.</h2>

<h2>They consist of a cellulose cellwall around their cells.</h2>

<h2>Mechanical and conducting elements are absent in thallophyta.</h2>

<h2>Plant body is thallus, not differentiated into root, stem and leaves</h2>
5 0
3 years ago
Read 2 more answers
What is the boundary between the earths lower mantle and the upper mantle called ?
Alenkasestr [34]

Answer:

i have trusted my best to answer

Explanation:

Edit

The upper mantle of Earth is a very thick layer of rock inside the planet, which begins just beneath the crust (at about 10 km (6.2 mi) under the oceans and about 35 km (22 mi) under the continents) and ends at the top of the lower mantle at 670 km (420 mi). Temperatures range from approximately 200 °C (392 °F) at the upper boundary with the crust to approximately 900 °C (1,650 °F) at the boundary with the lower mantle. Upper mantle material which has come up onto the surface is made up of about 55% olivine, 35% pyroxene and 5 to 10% of calcium oxide and aluminum oxide minerals such as plagioclase, spinel, or garnet, depending upon depth.

5 0
3 years ago
Other questions:
  • Mount Everest is the highest mountain in the world. Its peak is at an elevation of 8,848 meters (29,028 feet) above sea level. I
    15·2 answers
  • What is the internal environment and explain how it is related to the inside of a cell, the interstitial fluid and to the outsid
    10·1 answer
  • A student made a model of an ecosystem inside a sealed plastic bottle. She
    8·1 answer
  • Help me plz!!!!!!!!!!!!!!!!!
    7·1 answer
  • Will mark Brainliest.
    7·1 answer
  • A male patient presents with the following respiratory volumes and capacities : tv= 500 ml ; erv=1200 what is the patients vc.?
    12·2 answers
  • * Required
    6·1 answer
  • Snsbdbsbssbdjsbdddbdbdb
    9·1 answer
  • How does the WaterSense program work?
    10·1 answer
  • Too much logging in the oyamel fir forests could lead to the eastern monarch butterfly going extinct because _______. a. the ent
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!