A simple _____ telescope uses two convex lenses to gather and focus light.

1 answer:

4 0

A simple <em><u>refracting</u></em> telescope uses two convex lenses to gather and focus light from a distant object.

You might be interested in

My fish its not so active all the time and im worried about him.. what shoud i do?

Mamont248 [21]

Answer:

You must make the fish happy and healthy

Explanation:

Making Sure Your Fish Is Adapting. Fish like most animals have their adaptability to certain environments. ...

Do It For More Than Decor. ...

Re-create A Natural Environment. ...

Keep The Water Conditioned. ...

Keep The Aquarium Clean! ...

Keep The Tank The Right Temperature. ...

Remove Excess Algae. ...

Introducing New Fish To The Aquarium

4 0

3 years ago

Neurons have special proteins in their cell membranes that allow them to generate electric current. Are these proteins most like

V125BC [204]

Answer:

Sodium-Potassium pumps (proteins that help neurons generate electricity) are produced by ribosomes on the rough endoplasmic reticulum (ER).

Explanation:

Sodium-Potassium Pump (NA+/K+):

The Na+/K+ Pump is a transmembrane channel protein, responsible for maintaining the concentration gradient of sodium and potassium ions in the intra and extracellular environment. This is achieve by pumping 3 Na+ outside and 2 K+ inside the cell at the cost of one ATP. In neurons, these channels help in generating an action potential across the cell membrane that gives rise to a nerve impulse.

Production of Transmembrane proteins:

All membranes and their proteins are produced by the ribosomes on the rough ER. The rough endoplasmic reticulum contains the enzymes required for lipid synthesis; and as cell membranes are made of lipids, the ER is the most suitable location for synthesis. Membrane proteins, particularly, transmembrane proteins like the Na+/K+ pump possess hydrophobic surfaces that don't dissolve in the cytoplasm but readily attach to the ER surface from where they can be transported wherever required.

7 0

3 years ago

Which statement is NOT true concerning setting up an experimental design

pav-90 [236]

You do not need to plan. that was a false statement

4 0

3 years ago

The activation energy needed for a chemical reaction is decreased by a

Mars2501 [29]

A catalyst decreases the activation energy and increases reaction rate that is needed.

5 0

3 years ago

Reflex activity can be modified by the cerebral cortex. For example, you are baking a roast in the oven. As you are moving the r

Zanzabum

Answer:

There are different types of reflexes, and some of them can be controlled voluntarily due to cortical processing.

Explanation:

Even if there is an initial myotactic reflex of moving away from the heat, the cortical processing that is subject to learning makes you not let go of the pan. It should be noted that there are different types of reflexes, and not all postural reactions are automatic. The cerebral cortex influences voluntary postural adjustment movements. Such control is mainly performed by the brain stem, where ocurrs the modulation of motor neurons and spinal cord interneurons through the lateral descending (fine movements) and medial (posture and balance) downward pathways.

7 0

3 years ago