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Dahasolnce [82]
3 years ago
12

What are the ranges of colonies counts that are acceptable on a plate for a spread plate and pour plate? Why are they different?

for a​
Biology
1 answer:
enot [183]3 years ago
5 0

Each (both large and small) colony is carefully counted (using magnifying colony counter if needed). Each colony represents a “colony-forming unit” (CFU). For accurate counts, the optimum count should be within the range of 30-300 colonies/plate. To insure a countable plate a series of dilutions should be plated.

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What are the main parts that make up the endocrine system and what are their function
Anna11 [10]
Main parts and their functions :

- Hypothalamus : Links the nervous system to the endocrine system via the pituitary gland. It controls the release of 8 hormones by the pituitary gland, controls body temperature, control of food and water intake, hunger and thirst!

- Pituitary gland : Produces essential hormones for everything living such as the growth hormone, adrenocorticotropic hormone, thyroid stimulating hormone, luteinizing hormone and follicle stimulating hormone, etc.

- Thyroid gland : Produces thyroid hormones that regulate the body metabolism, play an important role in bone growth and development of the brain and nervous system in children!

- Parathyroid glands : Release parathyroid hormone which plays a role in regulating calcium levels in the blood and bone metabolism.

- Adrenal glande : Produce hormones that help the body control blood sugar, burn protein and fat, react to stressors, and regular blood pressure.

- Pineal body/gland : Secretes the melatonin hormone which may help regulate the wake-sleep cycle of the body.

- Reproductive glands : Main source of sex hormones for males and females.

- Pancreas : Has digestive and hormonal functions. One part of the pancreas called the exocrine, secures digestive enzymes. While the other part of the pancreas called the endocrine, secretes hormones called insulin and glucagon. Overall, these hormones regulate the level of glucose in the blood.

Hope this helps :)





7 0
3 years ago
This fallacy occurs when there is an error in inductive or deductive reasoning.
uranmaximum [27]
<span>The answer would be syllogism. This is a type of logical argument that applies deductive reasoning to get an outcome grounded on two or more suggestions that are declared or supposed to be true. Example: All mammals are warm-blooded. Therefore, all brown dogs are warm-blooded.</span>
4 0
3 years ago
I WILL GIVE BRAINLIEST1
spayn [35]

Answer:

the answer is B

Explanation:

Sorry about those idiots from the other question

6 0
3 years ago
Scientists can tell the average temperature of the earth by studying an ice core.<br> True<br> False
OLEGan [10]

Answer: True

Explanation:

5 0
3 years ago
Read 2 more answers
Read the scenario. Jake and Pari are completing a biology assignment. One of the questions asks them to determine the base amoun
postnew [5]

Answer:

There should be 10% thymine

Explanation:

DNA bases come in specific pairs. Guanine pairs up with cytosine and adenine pairs up with Thymine.

According to the problem the DNA sample was 40% cytosine and 40% guanine, so this is correct, there are equal amounts of cytosine and guanine. Now Thymine needs to have equal amounts as adenine, but adenine only has 10%.

If we match up the amount of adenine to thymine, we would have 15% adenine and 15% thymine, but that would excede 100%. So you need to match the thymine to adenine.

10% adenine + 10 % thymine + 40% cytosine + 40% guanine = 100%

4 0
3 years ago
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