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Georgia [21]
3 years ago
7

Which of the following correctly describes animals?

Biology
2 answers:
Levart [38]3 years ago
5 0

Answer:

Eukaryotic heterotroph

pychu [463]3 years ago
3 0
C. Eukaryotic heterotroph correctly describes animals, and fungus or bacterias would would be prokaryotic.
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Which aspect of this source should make the reader question its credibility?
Dahasolnce [82]

Answer:

The correct option is A)  It is not written by an authority

Explanation:

In the English language, credibility can be described as the quality of an object to be reliable or trusted.

A piece of written work which does not mention the name of the writer may be considered to be not reliable and trustworthy. Hence, the correct option is A.

Other options, like option D, is not correct because a peer- reviewed journal carries authentic information as the work has been rechecked by different people who have expertise on the subject.

7 0
3 years ago
What property of the DNA molecule explains the necessity for Okazaki fragments? DNA is antiparallel. DNA is a linear molecule. D
Arada [10]

Answer:DNA is antiparallel.

Explanation: DNA is a double stranded helix in which the two strands are antiparallel. Being antiparallel means that as one strand runs from 5'->3' direction, the other strand runs from 3'->5' direction. During DNA each of the two strands serves as a template for a new complementary strand. The synthesis of a new DNA strand is always in the 5'->3' direction, therefore one strand is synthesized continuously in the direction of the replication fork while the other strand is synthesized discontinuously in the direction opposite to the replication fork in short fragments called the Okazaki fragments. The strand that is synthesized continuously is called the leading strand while the strand that is synthesized discontinuously in Okazaki fragments is called the lagging strand.

3 0
2 years ago
In the study of human evolution, scientists define modern in terms of:
Lina20 [59]

<span>Answer:  a)  a series of anatomical traits that distinguish Cro-magnon features from Neandertals.</span>

<span>Neanderthals (Homo neanderthalensis) were first discovered in Germany in 1856 and are believed to emerged between 100,000 and 200,000 years ago. </span>

<span>Significant differences found in the human and </span>Neanderthal includes<span>: 1) their DNA, 2) the brain of a Neanderthal had a raised larynx and was also bigger, and  3) Compared to modern humans, Neanderthals had bigger and muscular body but with shorter legs.</span>

Cro-magnon is<span> the earliest known Western European example of our species who lived  35,000 and 10,000 years ago. They are believed to be actually modern in every anatomical respect. They are much like us.</span>

<span>Neanderthal and Cro-magnon were believed to overlap in Europe for a thousand years but long-term interbreeding was not seen. </span>

6 0
3 years ago
All organisms must perform life-sustaining metabolic processes in order to survive.
Alik [6]

Explanation:

  • Unicellular organisms or single celled organisms that are made up only of one cell. Hence the name.
  • Unicellular organisms are further divided into Prokaryotic and Eukaryotic organisms
  • Examples of prokaryotic organisms are bacteria and Eukaryotic are protozoa and unicellular algae, however many eukaryotes are multi cellular as well.
  • These organisms have to carry out life sustaining metabolic processes for their survival.
  • These processes are metabolism, homeostasis and reproduction. Metabolism is important as it involves conversion of food into energy for cellular processes. Homeostasis for maintaining a constant internal physical and chemical conditions and reproduction is by cell division.
  • Multi cellular organisms as the name says unlike unicellular organisms consists of more than one cells.
  • Examples of multi cellular organisms are animals, land plants etc.,
  • Metabolic process in multi cellular organisms is a broad category of processes happening for these organisms which involves chemical reactions and pathways that happen at organismal state, transporting substances between the cells.
6 0
3 years ago
Read 2 more answers
Four scientists observed an area of land that had been cleared of all trees and bushes to make space for a power line. Each scie
otez555 [7]

Answer:

The ecosystem is adversely affected.

Explanation:

The ecosystem is adversely affected due to clearing of all trees and bird population is also adversely affected because these trees are the source of habitat for these birds. When there is large number of birds in an ecosystem so the bird population automatically increases due to the presence of more habitat for the birds so if all the trees are removed so very little population of birds left in that ecosystem and this action leads to great disturbance in the ecosystem.

4 0
2 years ago
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