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bixtya [17]
3 years ago
6

Which test tube(s) acts as a negative control against protein

Biology
1 answer:
Nady [450]3 years ago
7 0

Answer:

Water plus Biuret's reagent will act as a negative control in the proteins

Explanation:

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Which ranks the terms in order of increasing size and the number of space objects contained within?
Snowcat [4.5K]
<h3><u>Answer;</u></h3>

A) Size: universe -> galaxy -> solar system  

Number of objects: universe ->galaxy -> solar system

<h3><u>Explanation;</u></h3>
  • <em><u>The relative size and relationship between the solar system, galaxy and universe is such that; universe is the largest, followed by the galaxy and solar system the smallest.</u></em>
  • <em><u>Similarly in terms of the number of objects, objects in the universe are more compared to those of the galaxy and the solar system.</u></em>
  • In a nut shell, universe refers to everything that exists, galaxies are giant structures that are made up of billion of stars. The universe is made up of billions of galaxies. A solar system is a region of space where the gravitational force of a star influences all the other objects.
8 0
4 years ago
_________ is a smooth muscle cell has a central nucleus but lacks striations.
Natalija [7]

Answer:

Linings of hollow organs

Explanation:

Smooth muscle cells are usually found in the lining of hollow organs such as all arteries and veins, wall of stomach, uterus, urinary bladder, digestive system etc. The cells of these linings are spindle shaped and consist of a nucleus at the center which lacks striations.  

They work as a housekeeper and are under involuntary control except the heart. They lack striation because of irregular arraying of actin and myosin filament along the length of the cell.  

4 0
4 years ago
The Krebs cycle is considered a cycle because?
AlekseyPX
<span>The citric acid formed remains in the mitochondria for the next acetyl CoA</span>
5 0
4 years ago
The invention of a compound light microscope enable scientists to observe cells helping them to what
Leni [432]
This invention helped them to discover a basic similarity among organisms.

Hope this helps<3
8 0
3 years ago
Read 2 more answers
Please help I don't understand
Verizon [17]

Answer:

The wolf is the secondary comsumer

Explanation:

Secondary consumers are largely comprised of carnivores that feed on the primary consumers or herbivores. Other members of this group are omnivores that not only feed on primary consumers but also on producers or autotrophs. An example is a fox eating rabbit..

7 0
3 years ago
Read 2 more answers
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