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3 years ago

Ocular lenses are close to the and ___ are close to the object being examined.

Biology

1 answer:

svetoff [14.1K]3 years ago

8 0

Solution:

Ocular lenses are close to the eyepiece and objective lenses are close to the object being examined.

The simplest microscope of all is a magnifying glass made from a single convex lens, which typically magnifies by about 5–10 times. Microscopes used in homes, schools, and professional laboratories are actually compound microscopes and use at least two lenses to produce a magnified image.

Thus this is the required answer.

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8. The look and feel of a rock's surface is its

Mariana [72]

Texture

Explanation:

The look and feel of a rock's surface is its texture.

The texture of a rock determines how it looks and feels to touch.

Textures of a rock are a function of the arrangement of minerals in them.
The shape, orientation and alignment of the mineral grains determines how the rock will feel and look.
Coarse texture in rock implies that the minerals in rocks are visible to the naked eyes and have a gritty feel
Rock textures tells us about the conditions of formation of a rock.

learn more:

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3 years ago

How does loseing laforin give you epilepsy ( please use lots of detail in the answer)

Deffense [45]

<span>Lafora disease is the most severe teenage-onset progressive epilepsy, a unique form of glycogenosis with perikaryal accumulation of an abnormal form of glycogen, and a neurodegenerative disorder exhibiting an unusual generalized organellar disintegration. The disease is caused by mutations of the EPM2A gene, which encodes two isoforms of the laforin protein tyrosine phosphatase, having alternate carboxyl termini, one localized in the cytoplasm (endoplasmic reticulum) and the other in the nucleus. To date, all documented disease mutations, including the knockout mouse model deletion, have been in the segment of the protein common to both isoforms. It is therefore not known whether dysfunction of the cytoplasmic, nuclear, or both isoforms leads to the disease. In the present work, we identify six novel mutations, one of which, c.950insT (Q319fs), is the first mutation specific to the cytoplasmic laforin isoform, implicating this isoform in disease pathogenesis. To confirm this mutation's deleterious effect on laforin, we studied the resultant protein's subcellular localization and function and show a drastic reduction in its phosphatase activity, despite maintenance of its location at the endoplasmic reticulum.

I got my information from </span>https://www.ncbi.nlm.nih.gov/pubmed/14722920

4 0

3 years ago

Can someone explain this diagram ill give branilest if you give correct answer

sdas [7]

Answer:

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7 0

3 years ago

Cause of Disease seoul virus

sveta [45]

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3 years ago

1) Discuss two neurotransmitters and their functions? 2) The central nervous system is comprised of what two structures? 3) What

wariber [46]

Answer:

1. dopamine and serotonin

2. brain and spinal cord

3. controls the function of different processes in the body

4. limbic system

5. Increase brain surface area

6. release hormones into the bloodstream

7. insulation

8. laughing has multiple positive functions in the body

Explanation:

Dopamine is a neurotransmitter (i.e., a chemical messenger) involved in responses to rewards, motivation and memory, while serotonin is another neurotransmitter that controls appetite, mood, wakefulness and sleep onset. The central nervous system (CNS) consists of the brain and spinal cord. The spinal cord acts as a conduit by which messages are sent from the brain to the body and from the body to the brain. Moreover, the brain acts to control all body abilities (e.g., thinking, talk, feeling, walking, breathing, etc). The autonomic nervous system is known to modulate different processes (e.g., blood pressure, digestion, breath) and internal organs (e.g., heart) by acting largely unconsciously, i.e., without a person's conscious effort. The limbic system is a part of the brain that acts to control emotions and memory by modulating autonomic/endocrine functions. Convolutions, folds, and fissures can increase brain surface area, thereby more neurons are packed into the cortex of the brain and thus it is possible to process more information. The endocrine system acts to release hormones into the bloodstream. These hormones travel in the blood to their target cells/tissues, where they regulate different functions (e.g., mood, growth, development, metabolism, reproduction, etc). The myelin is an insulating layer surrounding nerve cells that enables electrical impulses to transmit efficiently around the whole body. Laughing has multiple positive functions: release endorphin hormones that decrease stress, increases the number of immune cells and antibodies, stimulate the activity of internal organs (e.g., heart), quickly relax the muscles, contribute to increase the oxygen uptake rate in blood, etc.

8 0

3 years ago

Ocular lenses are close to the ____________ and _______________ are close to the object being examined.

Ocular lenses are close to the and ___ are close to the object being examined.