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
Liula [17]
3 years ago
6

Select all the correct answers.

Biology
1 answer:
babymother [125]3 years ago
8 0

Answer:

The answer is A.

Explanation:

Adaptive immunity recognizes antigens of viruses.

You might be interested in
What is the same about the electronic structures of lithium and sodium?
Sedaia [141]

Answer:

Sodium and lithium are in the same group of the periodic table; this is because they both have the same number of electrons in their outer shell (1 as indicted by the group number). this commonality is the reason they have similar chemical properties. As we go down the group however, the electronic structure of atoms of an element changes as that there are a increasing numbers of ‘shells’.

Electron ‘shells’ are filled according to ruled of quantum mechanics however to simplify things in this case the first shell can fit 2 electron, the second 8, and the third shell 8. Lithium has 3 electrons, hence it the first shell is filled, and 1 electron occupies the second shell. Whilst Sodium has 11 electrons, hence its first two shells are filled and the third shell is occupied by one electron.

To expand on this question, the duet/octet rule is a rule in quantum mechanics that observes that main group elements tend to be stable with a full outer shell.

This explains why sodium and lithium is found in the form of Li+ and Na+ ions in nature.

Explanation:

8 0
3 years ago
Read 2 more answers
Wyatt has heart problems
charle [14.2K]
???? what is you talking about
5 0
2 years ago
Read 2 more answers
Which is the best explaination of a recessive gene?
Elanso [62]
Answer: A gene that is hidden or not expressed.
8 0
3 years ago
Read 2 more answers
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
lisabon 2012 [21]

Answer:

A

Explanation:

6 0
3 years ago
Read 2 more answers
Which vessels are most intimate with the nephron loop and serve as a point to collect ions and water back into the blood?
MArishka [77]
The renal tubule would be the vessel within the nephron loops that functions to collect ions and water back into the blood. In addition, these vessels are the one responsible for emptying the collecting duct and reabsorbs salts present in the bloodstream and disperses it back to the blood.
5 0
3 years ago
Read 2 more answers
Other questions:
  • HIV acts by attaching to receptors on the surfaces of T-cells that aid other lymphocytes in fighting infection. Once HIV is insi
    15·2 answers
  • Why are cortisol analogues such as prednisone used for treating asthma?
    15·1 answer
  • The individuality of an organism is determined by the organisms
    15·1 answer
  • People once belived organisms could grow from food or dirt.How might the scientific study of cells have affected this view?
    7·1 answer
  • What is agricculture​
    6·1 answer
  • Why is the demand for environmental scientists and specialists expected to increase? (Site 1
    6·1 answer
  • A series of choices between two characteristics that is used to indentify organisms is called a
    14·1 answer
  • Products of DNA replication
    7·1 answer
  • NO LINKS AS AN ANSWER!!!!
    6·1 answer
  • Classify each description with the correct type of electromagnetic radiation.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!