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
antiseptic1488 [7]
3 years ago
10

What is the major distinction scientists use to divide the animal kingdom?

Biology
1 answer:
pogonyaev3 years ago
7 0

Answer:

Whether the animal has a vertebral column or not.

You might be interested in
Which of the following environmental conditions would be MOST likely to result in transcription of the lac
Kruka [31]

Answer:

The correct answer is B high levels of lactose and high levels of cyclic AMP.

Explanation:

Lac operon contain 3 regulatory genes and 3 structural genes.In presence of lactose the repressor molecule that is encoded by Lac I gene cannot bound to the operator region.

        Bacause the lactose interact with the repressor and change its conformation so that it cannot repress the expression of the structural genes of lac operon.

  On the other hand cyclic AMP is a positive regulator of  lac operon .The interaction of cyclic AMP with the promoter region of lac operon stimulates the binding of RNA polymerase in the promoter region to boost the expression of structural genes of lac operon such as Lac Z,Lac Y and Lac A.

4 0
3 years ago
Answer the questions plz
exis [7]

Answer:

1) A double Helix with complementary bases in the middle. The backbone is made of sugar and phosphates. The middle is bases

2) To hold the genetic info for the cell

3) To bring the genetic info from the nucleus to the ribosomes as DNA can't leave the nucleus

4) To bring amino acids to the ribosomes to help build a protein

5) A chain of amino acids held together by peptide bonds

6) Ribosomes

7) Because those are the bases that are complementary in DNA so they must be equal

8) It could lead to a mutation as it would cause the mRNA to code for a different amino acid and thus a different protein will be made

9) DNA is the blueprint for mRNA which will travel to the ribosomes and code for specific amino acids which will eventually build a protein

5 0
3 years ago
What's homeostasis ?​
juin [17]

Homeostasis:

<em>The tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes</em>

8 0
2 years ago
_____currents are caused by temperature and density differences. A. Deep B. Longshore C. Tsunami D. Surface
Margarita [4]

Your answer to your Question is ...A: deep

These currents move water masses through the deep ocean—taking nutrients, oxygen, and heat with them. Occasional events also trigger serious currents.

4 0
3 years ago
Nutrients and waste both enter and leave cells through a process called _____.
babunello [35]
<span>Diffusion. Diffusion is when particles in a highly concentrated area spread out to an area of lower concentration. The membranes of cells are very thin, which allows diffusion of different materials to happen easily. During respiration, oxygen and glucose concentration in the cell is lower than in the surrounding blood. This causes oxygen and glucose to move into the cell via diffusion. Carbon dioxide is produced inside the cell and this makes the concentration of CO2 higher in the cell than in the blood, so the excess diffuses out of the cell.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • The concept that living cells only arise from preexisting living cells is called:
    14·1 answer
  • What is the component of red blood cells responsible for oxygen transport?
    15·1 answer
  • Assessment
    8·2 answers
  • What is energy?
    14·1 answer
  • Can someone describe major subatomic particles that make up an atom
    14·1 answer
  • In the triple beam balance virtual lab, which objects have a mass greater than 100 grams?
    8·1 answer
  • Are the same skull bones seen in the adult also found in the fetal skull
    12·1 answer
  • when caring for a female patient who has been sexually assaulted, you should: Select one: a. allow law enforcement to take her s
    15·1 answer
  • Surface currents are caused by what and curves by what​
    13·1 answer
  • I need help ASAP
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!