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
Nat2105 [25]
3 years ago
12

Under what environmental condition would we expect euglena to ingest food rather than produce food via photosynthesis?

Biology
1 answer:
masya89 [10]3 years ago
4 0

When acting as a heterotroph (animal), the Euglena surrounds a particle of food and consumes it by phagocytosis. When acting as an autotroph, the Euglena uses chloroplasts to produce sugars by photosynthesis.

The number and shape of chloroplasts within Euglena varies greatly. Euglena are able to move through aquatic environments by using a large flagellum for locomotion. To detect light, the cell has an eyespot, a primitive organelle that filters sunlight into light-detecting, photo-sensitive structures at the base of the flagellum; allowing only certain wavelengths of light to hit it.

This photo-sensitive area detects the light that is able to be transmitted through the eyespot. When such light is detected, the Euglena may shift its position to get better photosynthesis.

The motility of Euglena also allows hunting. Most Euglena are considered mixotrophs: autotrophs in sunlight and heterotrophs in the dark. Euglena do not have plant cell walls, but have a pellicle instead. The pellicle is made of protein bands that spiral down the length of the Euglena and lie beneath the plasma membrane.[2]

Euglena can survive in fresh and salt water. In low moisture conditions, Euglena forms a protective wall around itself and lies dormant as a spore until environmental conditions improve. Euglena can also survive in the dark by storing paramylon granules inside the chloroplast.

You might be interested in
What surrounds (and is in contact with) muscles, gland, and other body cells, and gives rise to lymph fluid?
guapka [62]

Answer: Blood vessels

Explanation: Blood vessels consist of veins, venules, arteries, arterioles and capillaries that absorbs nutrients and minerals from organs and transport them to tissues and cells. It also transport oxygen and carbon dioxide to and from the heart to the lungs.

Therefore blood vessels are found in almost every organ, tissue and cells in the body to deliver nutrients, remove waste and filter lymph as part of immune system.

3 0
3 years ago
6. Type of energy that can travel through space in the form of waves.​
olga nikolaevna [1]

Answer: u can say either Radiant energy  or  electromagnetic waves

Explanation:

Radiant energy is the energy of electromagnetic waves. These waves can travel through space.

8 0
3 years ago
9. This is the backbone of the DNA strand.<br><br> 10: Dna is made out of
liberstina [14]

Answer:

10. B I *think*

Explanation:

I remember reading this

3 0
3 years ago
What is the relationship between meter kilometer centimeter millimeter and micrometer
mestny [16]
The meter is the basic measurement unit for length. It has submultiples (centimeter, milimeter, micrometer) and multiples (kilometer).

100 cm = 1 m
1000 mm = 1 m
1000000 micrometers = 1 m
1000 m = 1 km

4 0
3 years ago
Which statement best describes the organisms that live in a watershed? A. They are closely connected. B. They are protected from
horsena [70]

The answer is; C

A wetland in an area in the environment that is regularly or constantly inundated with water either from precipitation or due to proximity to riverbeds. Other than watersheds, other wetlands include marshlands, mangroves, lakes, rivers, and etc.


4 0
3 years ago
Other questions:
  • The Gajasimha in Indian mythology is a magical creature with the body of a lion and head of an elephant. A cross between a blue
    8·1 answer
  • What human action leads to less CO2 being pulled from the atmosphere and intensifies the effect of global warming trends
    6·2 answers
  • Renewable resources are resources that can be replaced faster than they are used. Which of the following energy resources is ren
    11·1 answer
  • The separation of the entire cell and its cytoplasm into two daughter cells is known as _______.
    6·1 answer
  • Drag each tile to the correct box.
    9·1 answer
  • In the 1930s, how did Dobzhansky and Mayr explain the origin of species?
    13·2 answers
  • Which statement best describes genetic material?
    5·2 answers
  • Which is the correct diagram of an atom , hint (i’m putting a picture)
    8·1 answer
  • How do individual’s affect environmental systems?
    10·2 answers
  • 20 POINTS
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!