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velikii [3]
3 years ago
10

Which type of cells are responsible for cell-mediated immunity? *b. T cells

Biology
1 answer:
fenix001 [56]3 years ago
6 0

Answer:

b. T cells

Explanation:

correctEdgbuzz

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Seven percent of the us population is diabetes. of these cases what percent have type 1 diabetes?
Makovka662 [10]
By not giving your body enough sugar
7 0
3 years ago
For an enzyme to be able to catalyze a reaction, the active site must —
Verdich [7]

Answer:

Active site of an enzyme must be attached to a substrate

Explanation:

Active site of an enzyme must be attached to a substrate

3 0
3 years ago
A researcher is curious if Bt resistant bollworms are susceptible to an insecticide called DDT. Bollworms susceptible to Bt have
Shalnov [3]

Answer:

The correct answer is - 3/16 or 18.75% portion will be resistant to both Bt and DDT.

Explanation:

It is given that bollworms that are susceptible to Bt are represented by either RR or Rr and resistance one are shown by rr genotype and bollworms that are resistant to DDT are represent TT or Tt genotype and susceptible to DDT have tt genotype.

Cross: RR tt with rr TT

Gametes: Rt and rT

F1 cross:

    RT

rT  RrTt ( susceptible Bt and resistant DDT)

F1 Cross with F1

Gametes: RT, Rt, rT and rt

cross:

             RT      Rt        rT         rt

RT       RRTT   RRTt   RrTT    RrTt

Rt        RRTt    RRtt    RrTt      RrTt

rT       RrTT    RrTt     rrTt       rrTt

rt       RrTt      Rrtt     rrTt      rrtt

The bold genotypes are the three out of 16 that are resistant to both DDT and Bt.

8 0
3 years ago
Mud, silt, and clay are all examples of ______. a. sediments c. minerals b. fossils d. tissues
marshall27 [118]
Hello there!

The answer is A, sediments. Mud, silt and clay can all be found at the bottom of a river, where sediment is formed. 

Hope this helps!

6 0
3 years ago
Read 2 more answers
In what ways are the respiratory structures of all animals similar?
sveta [45]
Answer: All respiratory structures in all animals serve the same purpose of providing the required molecules used in respiratory functions
7 0
4 years ago
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