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eimsori [14]
3 years ago
7

What is red shift? How does it affect earth and our solar system?

Biology
1 answer:
Sauron [17]3 years ago
7 0
Redshift happens when light or other electromagnetic radiation from an object is increased in wavelength, or shifted to the red end of the spectrum
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Organelles are structures within the cell that perform important functions. Which of the following correctly matches the
Firdavs [7]

Answer:

mitochondria: <u>powerhouse of the cell</u>

Ribosomes<u>: the places where proteins are synthesized in our cells. </u>

nucleus <u>houses DNA;controls cell</u>

Vacuole: <u>holds waste and fluids from cell</u>

Ribosomes: <u>tiny organelles that contain RNA and specific proteins within the cytoplasm. </u>

Explanation:

Organelles make up the subunits of a cell.  There are numerous each with their own function.  

3 0
2 years ago
Multiple Allele So far we have studied traits or genes that are coded for by just two alleles. Like in rabbits, there was one al
Vesnalui [34]

Answer:

The correct answer is BB genotype and BO genotype.

Explanation:

The human blood system or ABO system shows codominance due to the multiple alleles. That means three different alleles for human blood type are present are IA, IB, and i. For easy understanding can be stated as A (for IA), B (for IB), and O (for i).

If someone has blood type B could have a genotype of either BB or BO because of the dominance of B allele on O where is If A allele present with B allele it would show co-dominance.

Thus, the correct answer is the BB genotype and BO genotype.

8 0
3 years ago
What is a non living part of the ecosystem
dusya [7]

Answer:

an Abiotic Factor

Explanation:

The non-living components of the environment are known as abiotic factors. Abiotic factors include things such as rocks,water,soil,light,rocks etc...

7 0
3 years ago
Acetylcholine receptors on skeletal muscles are described as being ionotropic receptors because
DerKrebs [107]

Answer:

they are Na+, K+ and Ca2+ ion channels.

Explanation:

Ionotropic acetylcholine receptors are also called nicotinic acetylcholine receptors because beside acetylcholine (Ch) they respond to nicotine. These receptors are  primary receptors in muscle for motor nerve-muscle communication that controls muscle contraction.

Two molecules of ACh are required for receptor to open. Since the receptors are  linked to ion channels, the channels open. Opening of the channel allows positively charged ions to move across it: sodium enters the cell and potassium exits.

3 0
3 years ago
What substance would need to be added in order to reverse the reaction?
Korvikt [17]
The substance that would be added in order to reverse the reaction would be any substance that is found in the product side. Adding a substance that tends to be a product will shift the equilibrium of the system and will allow the reaction to produce the substances that is found in the reactant side.
5 0
3 years ago
Read 2 more answers
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