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Arturiano [62]
2 years ago
8

Which of the following has a primary role in attacking cancer cells and protecting against some pathogens by killing harmful cel

ls on contact
Biology
2 answers:
Oliga [24]2 years ago
7 0
B memory cells is very wrong. The answer could be Cytotoxic T cell or natural killer cell
jolli1 [7]2 years ago
4 0
The answer is memory B cell
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Transport proteins play a role in both?
Alex Ar [27]

Answer:

Transport proteins play a role in both active and passive transport to move molecules across the plasma membrane

3 0
3 years ago
What's the difference between active immunity and passive immunity?
Paha777 [63]

The difference between active and passive immunity is that your body produces antibodies in active immunity and in passive immunity, the antibodies are made outside the body. (D)

What is active and passive immunity?

Active immunity is a type of immunity that occurs when the immune system of a person is responsible for protecting them from a pathogen or from an infection.

Passive immunity is a type of immunity that involves the introduction of antibodies from another person or from outside the body of a person.

Antibodies are produced by an individual in active immunity but in passive immunity, antibodies are being transferred to an individual to help boost their immune system in fighting diseases.

Thus, the difference between active and passive immunity is that your body produces antibodies in active immunity and in passive immunity, the antibodies are made outside the body. (D)

Read more on immunity here:

brainly.com/question/16180371

#SPJ1

4 0
2 years ago
For Dalmatian dogs the spotted condition (D) is dominant to the non-spotted condition (d). What are the results of a cross betwe
Svetradugi [14.3K]

If two heterozygous individuals are crossed, the results of the cross are as follows:

  • SS - spotted condition
  • 2 Ss - Spotted condition
  • ss - non-spotted condition

<h3>What is an Heterozygous Cross:</h3>

According to this question, the gene coding for spotted condition. The allele for spotted condition (S) is dominant over the non-spotted condition (s).

If two heterozygous Dalmatian dogs are crossed i.e. Ss × Ss, the allele combination for each gamete is as follows:

  • Ss - S and s
  • Ss - S and s

The following offsprings will be produced:

  • SS - spotted condition
  • 2 Ss - Spotted condition
  • ss - non-spotted condition

Learn more about heterozygous cross at: brainly.com/question/13050360

7 0
3 years ago
I. Plant cells are formed from fertile soil.
Dmitriy789 [7]

Answer:

Option-B

Explanation:

Schleiden was a German botanist and Schwann was a German zoologist who independently observed that plants and animals are made of cells.

Once when they together met in a conference, they shared what they observed and later both reached the conclusion that cell is the functional and structural unit of living organisms.

In the given question, since Schwann was a zoologist, therefore, he concluded that the cell in an organism must function properly whereas Schleiden was a botanist and concluded that the different structures of a plant are composed of cells.

Thus, Option-B is the correct answer.

6 0
3 years ago
Read 2 more answers
2. Which of the following is NOT a necessary input for the process of photosynthesis?
Olegator [25]
D. Water light and CO2 are needed for the process of photosynthesis.
4 0
3 years ago
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