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Margaret [11]
3 years ago
13

What instrument needed to be developed before cells could be discovered?

Biology
1 answer:
igor_vitrenko [27]3 years ago
5 0
I believe it is a microscope

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A funnel-shaped passageway connecting the nasal and oral cavities to the "voice box".
posledela

Answer:

c. The pharynx

Explanation:

The pharynx is a tubular organ that begins in the funnel-shaped neck down the neck, extending from 12 to 15 cm in length and about 35 mm at its onset and about 15 mm at the end. its ending. It has communication with the esophagus, nasal passages and the ears. The pharynx is located behind the nasal passages and in front of the cervical vertebrae, remains attached to the larynx and esophagus.

Simply put, we can say that the pharynx is a funnel-shaped passageway that connects the nasal and oral cavities to the "voice box," also known as the larynx.

4 0
4 years ago
Three functions of the eye help!!!!!
miv72 [106K]

Explanation:

The eye receives oxygen through the aqueous. Its function is to nourish the cornea, iris, and lens by carrying nutrients, it removes waste products excreted from the lens, and maintain intraocular pressure and thus maintains the shape of the eye. This gives the eye its shape. It must be clear to function properly.

5 0
3 years ago
Read 2 more answers
Now make a list of questions to guide you in your research. You should be able to answer these questions in your paper: What cha
damaskus [11]

Answer:

Thickness of the skin and hair on the body

Explanation:

Thickness of the skin and hair on the body are the characteristics of animals that help them to survive the temperatures of their environments. If the animal is herbivore so they feed on plants while if the animal carnivore it feed on flesh. Yes, they have characteristics such as long legs and powerful nose etc that help them find and capture food. Yes, the animals have ways to sustain themselves if the availability of food or water is limited such as camel. Different natural defenses used by these animals against predators such as Camouflage. Yes, they have characteristics to protect their young such as horns used by deer and buffalo.

6 0
3 years ago
Describe the effects of the various antibiotic drugs you used. Were they all equally effective at controlling bacterial growth?
Kipish [7]

Answer:

Basically, most   antibiotic drugs  are not  effective in controlling bacterial growth. The potency of any antibiotic drugs is a measure of the magnitude of  diameter of the  bacterial growth . <u>This is because the diameter   is the measurement of the bacterial growth around the antibiotic drugs used to control it multiplication, and therefore a  measure  of how effective  it  can controls the population</u> Thus a small diameter around the antibiotic agent is a proof that it suppressed the growth effectively and can effectively be used to control  the bacteria, While  a large diameter is an indication of low effectiveness of the drug.

Based on this analogy, penicillin with wide usage for control  of bacteria growth  with  diameter of 3mm, is the most effective antibiotic drugs.However, Erythromycin which is also widely used control growth with diameter of 5mm  or 6mm depending on   type of bacterial.

Therefore, the least 3mm  diameter presented by penicillin is an indication that , antibiotic drugs  are not effective enough, and further research need to be done to control growth of bacteria and therefore its   pathogenic  effects.  

Explanation:

8 0
3 years ago
All animals which possess a spine are included in the same
Vaselesa [24]

I'm pretty sure your talking about Vertebrates

8 0
3 years ago
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