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stiv31 [10]
4 years ago
15

How do astronomers measure distances to stars?

Biology
2 answers:
a_sh-v [17]4 years ago
3 0

Answer:

I found this online:

Astronomers estimate the distance of nearby objects in space by using a method called stellar parallax, or trigonometric parallax. Simply put, they measure a star's apparent movement against the background of more distant stars as Earth revolves around the sun.

alisha [4.7K]4 years ago
3 0
They measure a star's apparent movement against the background of more distant stars as Earth revolves around the sun.
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T/F. Autonomic ganglia are sights of synapse and information transmission from preganglionic to postganglionic neurons.
inessss [21]

Answer:

<u>True</u>

Explanation:

There are <u>two components of efferent/motor nervous system</u>.

1.<u>Autonomic Nervous System</u>

It innervates the<u> smooth muscles, glands and cardiac muscles and is under involuntary control. ANS is further divided into Sympathetic nervous system and parasympathetic nervous system.</u>

It is composed of<u> preganglionic neurons</u> and <u>postganglionic neurons</u>. <u>The axons of preganglionic neurons synapse on the cell bodies of postganglionic neurons. </u>

Autonomic ganglia of sympathetic nervous system form the paravertebral ganglia (long chains on either side of spinal cord) and autonomic ganglia of parasympathetic nervous system are located close to the organ which the fibers innervate.

<u>2. Somatic Nervous system</u>

It is responsible for<u> voluntary control of skeletal muscles and is composed of motor nerve and the innervated muscle.</u>

4 0
4 years ago
What molecules are involved in the phosphorous cycle?
Evgen [1.6K]
ATP, DNA and lipids are involved in the phosphorous cycle.
7 0
3 years ago
Plz help I need help asap lots of points
lana66690 [7]

Answer:

maybe 80220

Explanation:

4 0
3 years ago
Why are pea plants good for genetic studies?
Setler [38]

Because they have many manipulable traits that can be studied such as:

Flower colour

Pod texture

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Hope it helped,


BioTeacher101

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3 years ago
How does the digestive system work with other systems to maintain homeostasis?
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They absorb nutrients.
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