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
Flura [38]
3 years ago
6

Does anyone know the answer?

Biology
1 answer:
vichka [17]3 years ago
8 0

Answer:

Robert Hooke Observed = (A. Plant cells)

You might be interested in
1.Tawag sa gobernador ng egypt?​
kolezko [41]

Answer:

<h3> Governor Start</h3><h3 /><h3>1 Yunus Pasha 1517</h3><h3 /><h3>2 Hayır Bey No picture available 1517</h3><h3 /><h3>3 Çoban Mustafa Pasha No picture available 1522</h3>
8 0
3 years ago
A student poured a solution of bromothymol blue indicator into three test tubes. Then he placed an aquatic plant in two of the t
olasank [31]

The question is incomplete. The complete question is - A student poured a solution of bromthymol blue indicator into three test tubes. Then, he placed and aquatic plant in two of the test tubes, as shown below. He placed a stopper on each test tube and placed them all in the dark for 24 hours. Brothymol blue turns from blue to yellow in the presence of CO2.

Which process would you expect the organisms in the test tubes to carry out-- cell respiration, photosynthesis or both? When would you expect each process to occur?

Answer:

Photosynthesis is the process of the formation of the food in case of plants in the presence of sunlight with the help of carbon dioxide, water and soil. The light energy is converted into the chemical energy.

The beaker is blue because plants uses carbon dioxide for their food preparation. When the beakers are kept in the dark place, instead of photosynthesis cellular respiration occur that made energy from the food for their survival.

6 0
3 years ago
What is the structure of a protein molecule?
Olenka [21]

Protein structure is the three-dimensional arrangement of atoms in a protein molecule. Proteins are polymers — specifically polypeptides — formed from sequences of amino acids, the monomers of the polymer. A single amino acid monomer may also be called a residue (chemistry) indicating a repeating unit of a polymer. Proteins form by amino acids undergoing condensation reactions, in which the amino acids lose one water molecule per reaction in order to attach to one another with a peptide bond. By convention, a chain under 30 amino acids is often identified as a peptide, rather than a protein.[1] To be able to perform their biological function, proteins fold into one or more specific spatial conformations driven by a number of non-covalent interactions such as hydrogen bonding, ionic interactions, Van der Waals forces, and hydrophobic packing. To understand the functions of proteins at a molecular level, it is often necessary to determine their three-dimensional structure. This is the topic of the scientific field of structural biology, which employs techniques such as X-ray crystallography, NMR spectroscopy, and dual polarisation interferometry to determine the structure of proteins.

Protein structures range in size from tens to several thousand amino acids.[2] By physical size, proteins are classified as nanoparticles, between 1–100 nm. Very large aggregates can be formed from protein subunits. For example, many thousands of actin molecules assemble into a microfilament.

A protein may undergo reversible structural changes in performing its biological function. The alternative structures of the same protein are referred to as different conformational isomers, or simply, conformations, and transitions between them are called conformational changes.

4 0
3 years ago
Read 2 more answers
Iodine products that are used on human tissues as anti-infection agents are called
xxTIMURxx [149]
Iodine products that are used on human tissues as anti-infection agents are called antiseptic. The antiseptics are used and applied on a tissue in order to reduce the possibility of infection, sepsis, or putrefaction. They i<span>nclude hydrogen peroxide, rubbing alcohol, and iodine. 
The most commonly usage is </span><span> cleaning  the skin before an injection  and cleaning wounds.</span>
7 0
3 years ago
Define the following ecological term biosphere​
Katen [24]
Biosphere, relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean.
5 0
3 years ago
Other questions:
  • An atom of element A has 15 protons. What would the element's atomic number be?
    5·1 answer
  • BRAINLIESTTT!! PLEASE HELP ASAP:)
    5·2 answers
  • Together, molecules form much larger complexes like mitochondria, lysosomes, and centrioles. these are collectively referred to
    7·2 answers
  • How does exhaling remove waste from the body? Explain the systems that make this happen, using complete sentences.
    11·2 answers
  • Why does venus rotate in a different way than other planets do?
    15·1 answer
  • What are the parts and functions of the human brain
    9·1 answer
  • Which of the following best describes a monomer?
    9·2 answers
  • The body's natural defense against infection is called:
    11·1 answer
  • The energy that powers photosynthesis comes from
    12·1 answer
  • 11. Does the rate of diffusion change over time? Why or why not?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!