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
Norma-Jean [14]
3 years ago
10

Diatoms have cell walls composed of _____.

Biology
2 answers:
AleksAgata [21]3 years ago
8 0

Answer:

Diatoms have cell walls composed of silicon dioxide.

BlackZzzverrR [31]3 years ago
6 0

The correct answer is a - silicon dioxide.

Diatoms are single celled algae. They have a silica - based cell wall called a frustule, which gives each diatom a particular shape.

Diatoms exist as separate single cells although some may be found in groups or colonies. The ones found in colonies create very pretty forms: leaf shaped, oval , star and even like a period.

Outer shells of diatoms are quite valuable. They are used in industry in the manufacture of toothpaste to give it grit.

You might be interested in
how do ionizing radiation, ultraviolet radiation, and visible light harm microorganisms? how do microorganisms protect themselve
7nadin3 [17]

Microorganism protect themselves against harmful UV light and visible light by using Iron minerals around themselves.

The iron minerals have unique properties in that they block damaging UV radiation while yet allowing organisms to utilise the portion of sunlight required for photosynthesis. UV rays kill cells by damaging their DNA. Two molecules of thymine, one of the bases that makes up DNA, react when exposed to light. The thymine dimer that results is extremely stable. The cell cannot perform its usual tasks if cellular processes are interfered as a result of an inadequate repair or unrepaired damage of thymine dimer.

To learn more about Thymine dimer click here:

brainly.com/question/12634767

#SPJ4

7 0
1 year ago
Read 2 more answers
Which of the following life processes requires specialized cells in multicellular organisms?
prisoha [69]
The most probable answer for this question would be that almost every life process requires specialized cells in multicellular organisms. To simply put it, cells of multicellular organisms are specialized in a way that they are all grouped into their respective tissues and these tissues are all grouped into their respective organs and these organs are all grouped together into their respective systems and these systems make up the multicellular organisms. These systems have their own functions in maintaining and sustaining the life that the organisms has. The organs have their own functions as well, thus specialized cells are mostly needed in respiration, digestion, circulation, movement, excretion, reproduction, immunity, coordination, and synthesis.
8 0
3 years ago
Read 2 more answers
On a backpacking trip, Kenny hikes all day at a steady pace, covering 30 kilometers and burning 4000 Calories. At the school tra
astra-53 [7]

Answer: Janelle accumulated lactic acid due to underventilation.

Kenny had optimal ventilation

Explanation:

7 0
3 years ago
Read 2 more answers
Which situation indicates that a disruption of homeostasis has taken place? cell division that is involved in a normal growth th
Pie
A rapid rise in the number of red blood cells.
7 0
3 years ago
Read 2 more answers
Which two substances are the products of photosynthesis?
Ulleksa [173]
D , hope this helps!
4 0
2 years ago
Read 2 more answers
Other questions:
  • One difference between monotremes and other types of mammals is
    8·2 answers
  • The stronger the wind, the larger the particles it erodes.
    13·2 answers
  • Match each organism with the correct description.
    7·2 answers
  • What is the most likely function of an orchids specialized root
    7·1 answer
  • Which of the following definitions best sums up the study of geography?. A. the study of biological processes in the human body.
    9·2 answers
  • Please Help!
    14·2 answers
  • Steel is denser than plastic, yet sound travels faster in steel than in plastic. Develop a hypothesis to explain why. In hypothe
    7·2 answers
  • What is the importance of the nitrogenous bases in DNA having relatively weak hydrogen bonds connecting them?
    14·2 answers
  • Which of these careers best fits in the Performing Arts pathway?
    10·1 answer
  • Which of the following will lead to a change in current scientific theory?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!