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valkas [14]
3 years ago
12

To locate a specimen on a prepared slide with a compound microscope, a student should begin with the low-power objective rather

than the high-power objective because the
Biology
2 answers:
harkovskaia [24]3 years ago
4 0
<span>Answer: The field of vision is larger under low power objective than under high power.

</span><span>The high power objective is more zoomed in, so you see less of the slide but more detail in that region. The low- power objective is more zoomed out and because of that allows us to see more of the slide. After you  look at the big picture, you can zoom in what you need to see in detail.</span>
Vanyuwa [196]3 years ago
3 0

Answer:

field of vision is larger under low power than under high power

Explanation:

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RNA is chemically similar to DNA except that its sugars have an additional oxygen atom,
Amiraneli [1.4K]

Answer:

Uracil

Explanation:

Uracil is in RNA thymine is in DNA

6 0
3 years ago
g What basic characteristics do we generally expect to find in all things that qualify as being alive? Question 1 options: 1) an
fgiga [73]

Answer:

Number 2: an ability to: reproduce, respond to stimuli and repair damage.

Explanation:

Some basic characteristics of all living things in general which they all have in common include:

The ability to reproduce (reproduction). All living things reproduce...

Ability to respond to stimuli (irritability)

Ability to repair damage: this is involved with cells in the organisms and to stay alive all organismsin general areade up of cells which has the ability to be repaired if damaged.

7 0
3 years ago
Bacteria grow in a culture at a rate proportional to the amount present. Initially, 300 strands of the bacteria are in the cultu
OLEGan [10]

Answer:

(a) number of strands (n) = time (t) ÷ proportionality constant (k)

(b) The time needed for the bacterial to double its initial size is 3.36 hours.

Explanation:

(a) Let the rate (time) be represented by t and the amount (number) of strands of bacteria be represented by n

t is proportional to n, therefore, t = kn (k is the proportionality constant)

Since t = kn, then, n = t/k

(b) Initial amount of strands = 300

Amount of strands after 2 hours = 300 + (300 × 20/100) = 300 + 60 = 360

k = t/n = 2/360 = 0.0056 hour/strand

Double of the initial size is 600 (300×2 = 600)

Time (t) needed for the bacterial to double its initial size = kn = 0.0056×600 = 3.36 hours

8 0
4 years ago
Which of these is thickes layer of earth
Vadim26 [7]

Answer: core

Explanation:

The core is the thickest layer of the Earth, and the crust is relatively thin, compared to the other layers.

5 0
3 years ago
What is the purpose of a booster dose of vaccine? A) to inoculate the body with pathogens B) to increase the levels of serum ant
Harman [31]

I believe the answer is B


3 0
3 years ago
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