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
zhannawk [14.2K]
3 years ago
13

Which of the following did you include in your answer? Check all that apply. weakened pathogen introduced to the body white bloo

d cells form antibodies against the pathogen memory cells remember the pathogen and attack it if it enters the body again vaccinations help the body build immunity
Biology
1 answer:
Svet_ta [14]3 years ago
6 0

Answer:

There are more conifers than other types of trees

Explanation:

You might be interested in
If a germ-line cell from a frog contains 10 picograms of DNA during G1 of interphase, then how many picograms of DNA would be pr
DIA [1.3K]

Answer:

10

Explanation:

The cell cycle is composed of three states: interphase, cell division and resting.

The interphase is composed of 3 phases: G1, S and G2 (in this order). During this state the cell prepares itself  for cell division. As part of the preparation the cell duplicates all its genetic material, that is, all its chromosomes. This duplication is done during the phase S.

During the meiotic cell division (composed of meiosis 1 and meiosis 2) a single diploid mother  cell (with duplicated chromosomes) produces four haploid daughter cells. the meiosis 1 produces two haploid cells with duplicated chromosomes, and the meiosis 2 produces 4 haploid cells with normal chromosomes (no duplicated).

If a germ-line cell from a frog contains 10 picograms of DNA during G1, then this cell will have 20 picograms of DNA before the product of the first meiotic division, and will have 10 picograms at the begining of the meiosis 2 (i.e prophase II)

7 0
3 years ago
27. What is the major reactant needed for the Citric Acid Cycle (aka Krebs Cycle)?
sp2606 [1]

Answer: b. Acetyl Co-A

Explanation:

Acetyl CoA produced through pyruvate, amino acids, and fatty acids are oxidized in the Krebs cycle in CO2, obtaining as products NADH, FADH2 and GTP (ATP). Parallel to this oxidation, the Krebs cycle produces compounds used as precursors for biosynthesis. As it is a cycle, an oxaloacetate molecule could, in principle, oxidize an amount indefinite of acetyl CoA. Acetyl-CoA is formed from the oxidative decarboxylation of pyruvate, sequentially performed by pyruvate dehydrogenase -PDH (complex multi enzymatic of 3 enzymes), in the mitochondrial matrix.

5 0
3 years ago
a circle fence sourrounding a small yard mesure 84 meters in length if you walk from one side from the other through the middle
anygoal [31]

Answer: 26.75 meters.

2πr = 84

2 * 3.14 * radius = 84

radius = 84/6.28

r= 13.375

So the diameter will be 13.375 + 13.375 which is 26.75 meters.

4 0
2 years ago
PLZ HURRY IT'S URGENT!!!!
Alla [95]

a because the marble changed its position quickly meaning that it was in motion

6 0
3 years ago
Read 2 more answers
Evolutionary biology is the study of _____.
Vlad [161]
It is going to be B. the word Bio means the earth. every time you hear the word Bio, then think about the earth
3 0
3 years ago
Read 2 more answers
Other questions:
  • Why is the plasma membrane selective?
    15·1 answer
  • Which organelle holds genetic information in the molecule DNA?
    7·1 answer
  • Can you count how old the tree was?
    8·2 answers
  • At what point during protein synthesis are genes<br> expressed?
    9·1 answer
  • Signal transduction is part of a cell\'s response to an external signal. although signal transduction pathways can differ in the
    5·1 answer
  • It took thousands of years to form this canyon. What MOST LIKELY caused the formation of the canyon? A) a volcano B) an earthqua
    6·2 answers
  • PLEASE HELP!!!!!! WILL GIVE BRAINLIEST!!!!!!!
    8·2 answers
  • Question 5
    9·1 answer
  • Which of these is thickes layer of earth
    6·1 answer
  • (01.01 LC)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!