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ValentinkaMS [17]
3 years ago
13

Plant cells differ from animal cells because only plant cells have _________

Biology
1 answer:
forsale [732]3 years ago
8 0

Answer:

a. Cell wall and chloroplasts

Explanation:

The cell wall in plants facilitates the retention of the cell shape during over-hydration. The chloroplasts are organelles in plants that carry-out photosynthesis and produce glucose.

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1. 1 Water makes up between 70-90% of the weight of most life forms, and nearly all chemicals present in living matter are solub
boyakko [2]

Answer:

The correct model is D.

Note: The first attachment below shows the different models. The second attachment shows the correct structural model of the water molecule.

Explanation:

A water molecule is composed of one atom of oxygen and two atoms of hydrogen.

A water molecule is polar, i.e. it contains positively and negatively opposite ends. The polar nature of the water molecule is due to strong electronegativity of oxygen which results in an uneven sharing of the bonding electrons between oxygen and hydrogen. The oxygen atom attracts the shared electrons more to itself, thereby, it acquires a partial negative charge, while the hydrogen atoms acquire a partial positive charge.

The bond angle between the oxygen and hydrogen atoms is approximately 105°. Therefore, from the first attachment below, the correct model for the water molecule is D.

4 0
3 years ago
Make
tangare [24]

Answer:

Explanation:

We present an explicit and simple approximation for the superadiabatic excess (over ideal gas) free power functional, admitting the study of the nonequilibrium dynamics of overdamped Brownian many-body systems. The functional depends on the local velocity gradient and is systematically obtained from treating the microscopic stress distribution as a conjugate field. The resulting superadiabatic forces are beyond dynamical density functional theory and are of a viscous nature. Their high accuracy is demonstrated by comparison to simulation results.

5 0
3 years ago
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In the Galapagos islands, marine iguanas swim in salt water and vent excess salt from their nostrils. Iguanas who are more effic
marissa [1.9K]
Should be A. the again c. might work to?
3 0
3 years ago
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A species of salamander has two tail length phenotypes. Short tails are completely dominant over long tails. A scientists crosse
goldfiish [28.3K]

Answer:

D. If all of the offspring are short-tailed, the unknown individual is the homozygous dominant genotype.

Explanation:

The short tail phenotype is completely dominant over the long tail phenotype. When a short tailed salamander with unknown genotype is crossed with a homozygous recessive long tailed salamander, the cross is called testcross. Lets assume that the allele "S" gives "short tail" phenotype while the allele "s" gives "long tail" phenotype.

If the "short tailed salamander" with unknown genotype is homozygous dominant (SS), the process of the testcross will express only dominant trait (cross 1). On the other hand, if the "short tailed salamander" with unknown genotype is heterozygous dominant (Ss), segregation of alleles during gamete formation would form two types of gametes (cross 2). The 50% progeny would express the "long tail" phenotype while rest 50% will express the "short tail" phenotype.

8 0
3 years ago
Based on the experiment in the scenario, which visual aid would be most helpful in showing the change in plants’ height overtime
Ahat [919]

Answer:

Option C, Bar graph

Explanation:

A bar graph is used to graphically represent a comparative data set where data belonging to different categories is presented.  

Here the different categories shall consists of  "different environment exposure" given to plant and under all the “exposed environmental condition” the growth of plant is compared. The categories can be kept on both horizontal and vertical axis of the graph.

Thus, a bar graph (either vertical or horizontal) would be the best to present this data set.

7 0
2 years ago
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