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const2013 [10]
3 years ago
10

A scientist looks under a microscope and sees two cells in the process of dividing. Which principle of cell theory would this ev

idence support?
Biology
1 answer:
sveticcg [70]3 years ago
4 0

Answer:

All cells arise from pre existing cells.

Explanation:

one of the principles on the cell theory states that all cells came from pre existing cells . The two cells are parent cells who are big enough to undergo mitosis. The 4 cells made out of this event are daughter cells .

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A recent study compared the Homo sapiens genome with that of Neanderthals. The results of the study indicated that there was a m
irga5000 [103]

Answer:

A few modern H. sapiens with some Neanderthal sequences.

Explanation:

The evolutionary study is important to understand the evolution pattern of the organisms and their common ancestors. The human evolution can be revealed by the molecular and biochemicals evidence.

The DNA and protein sequence similarity are used to construct the phylogeny tree. The BLAST tool is used for the alignment of the sequences. The studies suggested that Homo sapiens genome is mixed with that of Neanderthals. This might be possible that DNA sequences of few modern H. sapiens is similar with the Neanderthal sequences.

Thus, the correct answer is option (B).

5 0
3 years ago
Part a fill in the blanks in the table below where both δh and δs refer to the system. complete the table by dragging the labels
VMariaS [17]
H S G Low temperature and High temperature.
When H is negative and S positive and G negative there will be spontaneous low temperature and spontaneous high temperature. When H is negative, and S is negative and temperature dependent then the low temperature will be spontaneous and high temperature will be non-spontaneous. When H is positive and S is positive then the temperature dependent and low temperature are non-spontaneous and high temperature will be spontaneous. When H will be positive and S is negative then G will be positive, the low temperature will be non-spontaneous and high temperature will also be non-spontaneous.
5 0
4 years ago
Read 2 more answers
An organism has an inversion in one homologue of a chromosome pair. When its germ cells undergo meiosis, how many of its gametes
luda_lava [24]
<span>Germ cells undergo meiosis to produce gametes. This means that the daughter cells will contain one homologe of a chromosome pair. That means 50% of gametes will carry the inversion.</span>
4 0
4 years ago
Multiple Choice
Zarrin [17]

Answer:

11B (reproduce). 12C (be eaten). 13A (variation). 14C (better adapted). 15C (Darwin). 16A (evolved). 17C (competition).

Explanation:

11 - The key principle underlying evolution by natural selection is that traits are only passed on if the organism survives long enough to reporduce. An adaptation that increases its likelihood of survival will therefore increase the chance it will reproduce.

12 - Deer rely on their brown fur to remain camouflaged in the forest so that predators can't see them. A white deer will stand out and will be seen by predators and eaten.

13 - This is the definition of variation. The variation becomes an adaptation if it actually benefits the organism in some way in its environment. A variation could also be neutral (doesn't affect the organism) or deleterious (bad).

14 - See previous question.

15 - Darwin developed the theory.

16 - This is describing the process of evolution.

17 - This is an example of competition.

4 0
4 years ago
Can babies be made by a girl and agirl?
noname [10]

Answer:

no

Explanation:

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5 0
3 years ago
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