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Marysya12 [62]
3 years ago
12

A muscle that flexes the spinal column is the

Biology
1 answer:
azamat3 years ago
6 0
Spinalis thoracis extends the spinal column
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John and Joshua used a light microscope to observe a plant cell. They indicated the magnification as x1000. Given the eye piece
Zinaida [17]

Answer:

Objective Lens Magnification = ×100

Explanation:

In a microscope, the ocular (eyepiece) lenses are usually to a magnification of ×10, meaning that it magnifies the image 10 times. While the standard objective lenses have magnifications of ×4, ×10, ×40, and ×100.

In order to work out the total magnification, the individual magnifications of the ocular and objective lenses have to be known, after which a simple multiplication of both magnifications will give the total magnification used.

Total Magnification = (eyepiece lens magnification) × (objective lens magnification)

1000 = 10 × obejcetive lens magnification

Dividing both sides by 10

Objective lens magnification = 1000 ÷ 10 = 10

∴ Objective lens magnification = ×100

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3 years ago
Choose 5 different organisms. At least one of your organisms needs to be a plant. List an adaptation and describe how the adapta
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2.)bearded dragon has a frill to expand. this is used to scare or warn predators

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What is the genotype (genes) ratio for this probability outcome for the offspring?
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Why will other ecosystems be affected if freshwater ecosystems dry up?
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Explanation:

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2 years ago
Which is an advantage of sexual reproduction over asexual reproduction?
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Answer:

in sexual reproduction we get genes from both our parents and we have a combination of them...that leads to genetic diversity...more diversity means more chances to survive different environment conditions.... in asexual reproduction.. offsprings are identical.if environment conditions are rough...all of them won't stand a chance...and also....in sexual reproduction genetic variation can lead to evolutionary advancements

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3 years ago
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