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Novosadov [1.4K]
3 years ago
5

Gina is studying a cell under a powerful microscope. The cell does not contain membrane-bound organelles.

Biology
2 answers:
Rainbow [258]3 years ago
6 0

Answer:

a plant

Explanation:

Alenkasestr [34]3 years ago
5 0
What is a prokaryotic cell
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What organelles do plants have in their roots that helps them to sense gravity?
harina [27]

statocytes, organelles do plants have in their roots that helps them to sense gravity, correct answer is B.

what are statocytes ?

In higher plants, statocytes are the cells which sense gravity. They contain amyloplasts-statoliths, amyloplastic organelles which are filled by starch or sediment at the bottom of the cells. Coleoptiles, shoots, and inflorescence stems all have an elongating area that really is home to statocytes.

how do they help in sensing gravity ?

When the plant is reoriented in the gravity field, the starch-filled plastids (also known as statoliths) in the statocytes, that are highly polarized cells, fall to the physical bottom.

Hence, statocytes help in sensing gravity.

Learn more about statocytes here:-

brainly.com/question/924275

#SPJ1

8 0
2 years ago
The chemical stockroom also contains a solution labeled unknown. This solution contains a 0.10M solution of a "synthetic base".
arsen [322]

Answer:

AT indicates A and T bound together, AC indicates A and C bound together, etc.

Explanation:

In the '30s and '40s, biologists knew that the agent for heredity was in thread-like chromosomes, made of the molecule DNA. They also knew that DNA was made of four bases, (A)denine, (G)uanine, (C)ytosine, and (T)hymine. The race was on to be first to determine how they fit together, and how they carried hereditary information.

DNA

In 1953, James Watson and Francis Crick unraveled the mystery, by showing that DNA had the double-helix structure shown to the left. The information is stored as the sequence of bases: G, C, A, and T, on the strand of DNA running up one side of the double helix. On the opposing strand, the sequence is mirrored such that a C is paired with every G, and an A is paired with every T. This pairing is essential to the ability of DNA to replicate and to send its information out into the cell to direct protein synthesis.

You will be provided with stock solutions of all four bases. These are labeled dAMP for A, dCMP for C, dGMP for G, and dTMP for T to reflect the fact that these bases are only soluble as single bases in their d-MonoPhosphate form. Each of these solutions has a concentration of 0.10M. In the following, feel free to combine these solutions in any way you see fit. Note that the "Solution Info" window shows the concentrations of all chemical species in the currently-selected container. In this window, AT indicates A and T bound together, AC indicates A and C bound together, etc.

7 0
3 years ago
Why were Cynognathus fossils were important to Wegener's theory?
AveGali [126]

Answer:

Cynognathus fossils were important to Wegner's theory because they were found on lands now separated by a wide ocean.

Explanation:

Wegner used the fossil of cynognathus as evidence to prove his continental drift hypothesis. Cynognathus are reptiles which lacked the swimming ability. These reptiles survived in the land before separation in live form along with other organisms surviving side by side.

Later due to certain natural phenomenon these reptiles died and the land got separated by a wide ocean. The fossils of cynognathus reptiles are now found in the lands that are separated by wide ocean.

6 0
3 years ago
__________ of tissues by hard bones​
Alik [6]

Answer:

Connective tissue

Explanation:

Bone tissue is a type of dense connective tissue.

Hope this helps you!

5 0
3 years ago
Read 2 more answers
8) The plasma membrane is composed of a double layer of molecules called
PolarNik [594]

Answer:

Your answer would be Phospholipids

Explanation:

6 0
3 years ago
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