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
brilliants [131]
2 years ago
15

Which are characteristics of all bacteria? Check all that apply. Please help me

Biology
1 answer:
emmasim [6.3K]2 years ago
7 0

Answer: they are all prokaryotes

Explanation: because they all lack a nucleus to retain their DNA

You might be interested in
Glutamic acid and valine are two amino acids with different molecular structures. (Glutamic acid is a strongly hydrophilic molec
Aleonysh [2.5K]

Answer:

Explanation:

The switch from glutamic acid to valine in position 6 of hemoglobin (HB) forms the basis of sickle cell anemia disease pathology.

Valine is hydrophobic and it's chain is shorter than glutamic acid. The lack of the carboxylic acid and shortness of valine will result in loss of the ionic interactions formed between the glutamic acid's carboxylic group and other amino acids. A hydrophobic cavity will form in the beta sheet of HB due to the short and hydrophobic structure of valine. For these reasons, the HB molecule will be less stable and insoluble in water. The insolubility is thought to be caused by fibril formation between the valine interacting with hydrophobic pocket residues of the adjacent HB molecule.  This would in turn affect binding of oxygen to HB.  

5 0
3 years ago
What is the building block of all Nucleic Acids?
DaniilM [7]

Answer:

A nucleotide is the basic building block of nucleic acids. RNA and DNA are polymers made of long chains of nucleotides. A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.

Explanation:

3 0
3 years ago
How is science different from other ways of learning about the world?
Butoxors [25]

Answer:

science is different from many other ways of learning because of the way it is done. Science relies on testing ideas with evidence gathered from the natural world.

Hope this helps

8 0
2 years ago
Read 2 more answers
Which of the following lists the reactants (raw materials) needed for photosynthesis to occur? *
Evgen [1.6K]

Answer:

carbon dioxide and water

Explanation:

carbon dioxide and water are the raw materials needed to start the reaction. They are on the left side of the equation so that is how you know.  

5 0
3 years ago
Read 2 more answers
Poisons and salts are removed from the blood by the _____.
PtichkaEL [24]

Answer:

Kidneys

Explanation:

The kidneys remove wastes and excess water in the body through the urine, as urine flows from the kidneys to the bladder through two thin tubes located on both sides of the bladder called the ureter, and the bladder stores urine, and each of the kidneys consists of about one million filtering units called the renal tubular unit contains Each renal tubular unit has a filter called the glomerulus and tubule, and the renal tubular unit operates through a two-step process:

glomerulus: filters blood.  

Tubule: Returns the necessary substances to the blood and removes waste.

6 0
3 years ago
Read 2 more answers
Other questions:
  • The adaptations of a pelican include its long, pouch-like beak. Why is the beak of the pelican an example of an adaptation?
    14·1 answer
  • Both the esophagus and the small intestine are involved in the digestion of food. The esophagus squeezes food into the stomach b
    12·2 answers
  • Differences between amino acids are normally due to differences in which part of the molecule?
    9·2 answers
  • Why don’t all water droplets fall to Earth?
    9·1 answer
  • PLEASE HELP IM BEGGING YOU
    8·2 answers
  • How do you cope with the uncertainty
    11·1 answer
  • How does heat affect the thermal energy of an object that is colder than the air that surrounds it?
    11·2 answers
  • By 40-60 years after farm fields had been abandoned, the amount of herbaceous plants decreased. Give one reason why the amount o
    12·1 answer
  • Just answer my question before I literally die from stress
    9·1 answer
  • HELP PLEASE!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!