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Stolb23 [73]
3 years ago
6

How does the change in shape help the worm move forward

Biology
2 answers:
MakcuM [25]3 years ago
8 0

Answer:

Earthworms are adapted for life underground. Their streamlined shape allows them to burrow through soil. The earthworm withdraws the front setae and uses its rear setae to anchor itself at the back. The earthworm uses.

Anestetic [448]3 years ago
8 0
Hmm I’m not sure man, sorry
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The work of Charles Darwin and Alfred Wallace on the origin of the Earth's species extended the ideas of Lyell's uniformitariani
Morgarella [4.7K]
<h2>The work of Charles Darwin and Alfred Wallace </h2>

Explanation:

C) uniform modification of genetic traits over long periods of time.

The theory of uniformitarianism  states that the natural phenomena and laws that are bringing about changes in the today's world are functioning in the same rate since the geological times. This idea of uniformitarianism was linked to biological sciences because according to Darwin and Wallace's observation, the uniform modification of genes among the population brought about the species diversity on the Earth.

4 0
3 years ago
Read 2 more answers
Mutation is a random and non-adaptive process. This was first proven by:
s2008m [1.1K]

Answer:

Option (d).

Explanation:

Mutation may be defined as the sudden, heritable change in the nucleotide sequence of the organism. Mutation may occur due to the errors in DNA replication or may occurs due to the mutagens.

Joshua and Lederberg experiment explains that mutation is the non adaptive and random process that occur in the organism. He used the replica plating of E.coli and grows them on streptomycin drug. The bacteria was grown on the the primary plate and they are transferred to the secondary plate with streptomycin drug in the growth environment. The resistant strain of bacteria grows in the streptomycin environment.The pattern of bacteria growth on the plate explained that mutation occurs randomly and it is a non adaptive process.

Thus, the correct answer is option (d).

4 0
3 years ago
Which term refers to physical characteristics that are studied in genetics?
Hoochie [10]
Phenotype <span>refers to physical characteristics that are studied in genetics.</span>
8 0
3 years ago
Several groups of protists have variable modes of nutrition: Some species are photoautotrophs, whereas close relatives are heter
Radda [10]

Answer:

The endosymbiotic theory

Explanation:

Protists are the multicellular organisms which possess characteristics of both the prokaryotes and eukaryotes.

The protist can derive nutrition by either heterotrophic mode or photoautotrophic mode. This variation could exist within the same genus and same species.

This variation could be explained with the endosymbiotic origin of the organisms as some species could engulf the photosynthetic bacteria whereas some could have engulfed the chemosynthetic bacteria.

This can be observed in the green and red algae which depend on a different mode of nutrition belonging to the same group.

Thus, the endosymbiotic theory is correct.

4 0
3 years ago
Which of the following is responsible for enforcing the Endangered Species Act?
frosja888 [35]
Should be d, because the us fish and wildlife service specializes in habitats
4 0
3 years ago
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