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Nadusha1986 [10]
3 years ago
10

6. How can a mutation be beneficial to a bacterium?

Biology
1 answer:
Flura [38]3 years ago
6 0

Answer:  Some mutations have a positive effect on the organism in which they occur. They are called beneficial mutations. They lead to new versions of proteins that help organisms adapt to changes in their environment. ... The mutations lead to antibiotic-resistant strains of bacteria. brainliest?

Explanation:

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How is Earth's environment unique in the solar system?
Ber [7]

Answer:

In the entire solar system, the environment of planet earth is unique due to the presence of the atmosphere.

It is responsible for providing carbon dioxide and oxygen which are essential for the presence of life on earth.

Secondly, it helps in keeping the earth warm through the greenhouse effect.

It prevents the entry of harmful radiations of the sun into the atmosphere.

3 0
3 years ago
Read 2 more answers
A population of wild-flowers was scored for flower color. There were 302 blue (BB) plants, 1857 violet (BR) plants and 811 red (
Paul [167]

Answer:

frequency of the blue (B) allele = 0.4142

frequency of the red (R) allele = 0.5858

The number of blue plants expected is 509.652

The number of red plants expected is 1019.304

The anticipated number of violet plants is 1441.341

Calculated chi square value

= 84.5320 + 42.5688 + 119.8692\\= 246.97

Explanation:

Frequency of blue allele is

Frequency of blue allele is equal to sum of frequency of BB and half of frequency of BR

\frac{302}{2970} + \frac{1}{2} \frac{1857}{2970} \\= 0.1016 + 0.3126\\= 0.4142

Frequency of other allele

1- 0.4142\\= 0.5858

Chi Square test

See the attached file

The number of blue plants expected is 509.652

The number of red plants expected is 1019.304

The anticipated number of violet plants is 1441.341

Calculated chi square value

= 84.5320 + 42.5688 + 119.8692\\= 246.97

7 0
3 years ago
What's up these organisms has an exoskeleton?
Ainat [17]
The most common organisms with exoskeletons are arthropods which include insects (bees, ants), arachnids (spiders) and crustaceans (lobsters and crabs).
4 0
3 years ago
In cardiac muscle In cardiac muscle an action potential spreads throughout the Z discs. intercalated discs connect the muscle fi
Anastasy [175]

In cardiac muscle

a. an action potential spreads throughout the Z discs.

b. intercalated discs connect the muscle fibers together.

c. calcium enters the cell from storage chambers called intercalated discs.

d. potassium is released from the sarcoplasmic reticulum

Answer:

b. intercalated discs connect the muscle fibers together.

Explanation:

Intercalated discs are components of the muscles found in the heart(cardiac muscles).

Intercalated discs join the cardiomyoctes (muscle cells or fibers) together so that they can function as one and transmit signals amongst themselves during the contraction of the heart.

Intercalated discs are made of up desmosomes and gap junctions.

Intercalated discs are found on the lining of the sacromere and can only be seen by using a microscope to observe the longitudinal section of the heart tissue.

7 0
2 years ago
Read 2 more answers
Which is an example of a population?
Iteru [2.4K]

Answer: The correct answer is- all the sugar maple trees that are present in a state park.

Population can be described as a group of individuals belonging to a particular species, which inhabit a particular area.

In this question, last option that is all the sugar maple trees that are present in a state park correspond to a particular population.

Other options have organisms occupying different areas across the world.

6 0
3 years ago
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