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
arsen [322]
3 years ago
8

Which is the smallest unit of life?

Biology
2 answers:
zysi [14]3 years ago
7 0

Answer:

D, cells.

Explanation:

Juli2301 [7.4K]3 years ago
7 0

D. Cells. Hoped this helped

You might be interested in
The anterior portion of the body of most annelids, such as the earthworm, is adapted for sensing the environment.
Diano4ka-milaya [45]

Answer:

The answer is False. Although sensitive cells are <u>more abundant</u> in the <u>anterior portion</u> of the annelid´s body, in general, they are arranged in all the segments.

Explanation:

Annelids, such as the earthworm, have a variety of sensory cells:    

  • <u>Mechanoreceptors</u>, disposed of in groups in <em><u>each segment</u></em> of their body.  
  • <u>Photoreceptors</u>: Light-sensitive cells. Although they are <em><u>located in the whole </u></em>body, they are <em><u>abundant in anterior and posterior segments</u></em>, concentrated in the intern and dorsal part of the epidermis.
  • <u>Humidity receptors</u> are the most sensitive cells and are <u>located in the first segments</u> of the earthworm body
  • <u>Chemoreceptors</u>: sensorial cells cumulus forming a prominent tubercle with prolongations that extends through the cuticle. These tubercles form three rings <em><u>in each segment</u></em> but are especially <em><u>abundant in the anterior part</u></em> of the body.

The tegument is very rich in free nervous terminations, which functions might be tactile.

6 0
3 years ago
Compare and contrast erosion and depositition
PolarNik [594]
Erosion is the process of eroding or being eroded by wind, water, or other natural agents. Erosion can dissolve rock, weakening it or turning it into tiny fragments. Deposition is the process by which sediments settles out of the water or wind that is carrying it, and is deposited in a new location. <span>Deposition transports previously eroded sediments, which, at the loss of enough kinetic energy in the fluid, is deposited, building up layers of sediment. </span>
3 0
3 years ago
Why is permeable soil best for plants that need a lot of drainage?
Svetradugi [14.3K]

Answer:

Permeable soil will let more water and air to drain through the plant as this type of soil loses too much water.

Explanation:

A soil possessing an enhanced quality to transfer water is known as permeable soil. Hence, there would be more drainage in the soil with enhanced permeability. Permeable soil loses more water as compared to the impermeable ones. Hence, choosing permeable soil would be best for plants that require a lot of drainage. To check permeability of soil two types of tests are performed which are the constant head method and falling head method.

4 0
2 years ago
Read 2 more answers
Which type of electromagnetic wave has more energy than a wave of
abruzzese [7]
I believe it is an infrared light
5 0
2 years ago
In multicellular organisms, life begins as a single cell until ___________ occurs, causing growth.
UkoKoshka [18]
What would be Mitosis
7 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following activities is thought to involve mirror neurons? a.Thinking about performing a physical action or movemen
    6·2 answers
  • A group of older stars that cluster together in a spherical shape and can contain up to one million stars per cluster is called:
    8·2 answers
  • Which group was mostly against reintroducing wolves to the northern rocky mountains?
    11·2 answers
  • Nuclear energy is a useful source of power but has disadvantages. What is a
    7·2 answers
  • Why can't humans digest all carbohydrates ?
    11·1 answer
  • What are the main causes of antimicrobial drug resistance?
    8·1 answer
  • Protists can be harmful for which of the following reasons?
    12·2 answers
  • Why are cells growing on top of each other even if they have space in culture flask
    11·1 answer
  • 5. Waves that can travel with or witout a medium are called mechanical *
    11·1 answer
  • After proteins are formed by the ribosomes located on the endoplasmic reticulum, what is the next organelle to which they could
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!