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ozzi
3 years ago
10

The cells responsible for waging war against disease or infection are known as ____.

Biology
1 answer:
kykrilka [37]3 years ago
3 0
Lymphocytes are the cells responsible for waging war againsy disease or infection.
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Which component is present in some viruses but absent in others?
kifflom [539]

Answer:

The correct answer would be the virus envelope.

Viral envelope is a protective covering present around the capsid proteins in some viruses.

It is usually derived from the cell membrane of the host and thus it is composed of lipid and viral proteins.

It provides stability to the viral particle, helps in protecting the viral genome, and aids in the fusion of the virus with the membrane of the host.

Examples of viruses in which envelope is present: herpesviruses, poxviruses, flavivirus, hepatitis D et cetera.

Examples of viruses in which envelope is absent: adenoviridae , papillomaviridae , picornaviridae , caliciviridae et cetera.

4 0
3 years ago
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The table below summarizes Mendel’s results for the F2 generation. Mendel’s Results Plant height 787 tall 277 short Flower color
Gnom [1K]

Answer:

2001

Explanation:

This question showcases a table that displays Mendel's results (figures) when he crossed pea plants and observed different characters in the plant. Mendel worked with different phenotypic characteristics in the pea plant.

According to the table, the result were for seven characteristics including height, flower color, flower position, pod color, pod shape, seed color, seed shape. Based on the observation of the number of F2 offsprings that possessed dominant trait and recessive trait for each character, we will notice that it follows an approximate phenotypic ratio of 3:1

1. Plant height 787 tall 277 short (3:1)

2. Flower color 705 purple 224 white (3:1)

3. Flower position 651 middle of stem 207 end of stem (3:1)

4. Pod color 428 green 152 yellow (3:1)

5. Pod shape 882 inflated 299 constricted (3:1)

6. Seed color 6,022 yellow X green

7. Seed shape 5,474 smooth 1,850 wrinkled (3:1)

This 3 dominant : 1 recessive ratio is the ratio got in the F2 offsprings when he observed the seven characteristics in pea plants. Hence, the seed color will also follow the same 3:1 ratio

Therefore, 2001 is the result Mendel obtained in the F2 offsprings for the recessive trait of seed color characteristics in his experiment, which actually depicts the 3:1 ratio. Hence, X (green seed color) is 2001

8 0
3 years ago
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Increased concern over the number of heat related illnesses among football players has led to a possible change in uniform desig
sergij07 [2.7K]

Ans: maintain homeostasis

Homeostasis is any self-regulating process by which biological systems tend to maintain stability while adjusting to conditions that are optimal for survival. It is the stable state of an organism and of its internal environment. Maintenance of homeostasis usually involves negative feedback loops. These loops act to oppose the stimulus, or cue, that triggers them. The stable condition is the condition of optimal functioning for the organism, and is dependent on many variables, such as body temperature and fluid balance, being kept within certain pre-set limits.






3 0
3 years ago
I need help on #13 please
eimsori [14]
Earthquakes occur along faults because they're under pressure.
Faults are cracks in the Earth where the tectonic plates are moving in different directions, thus there is a pressure.
4 0
3 years ago
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What nineteenth-century invention led to the expanded use of hydroelectric power?
Dimas [21]

Turbines. Invented by Charles Parsons. I know I'm in middle school, but we are just learning about hydroelectric power.

5 0
3 years ago
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