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attashe74 [19]
3 years ago
5

He correct method of removing a glass stopper is to grasp it _______.

Biology
2 answers:
Yanka [14]3 years ago
7 0
The correct method of removing a glass is to grasp it between the second and third finger.
Inserting and removing glass tubing from rubber stoppers can be dangerous; therefore its is important to always protect ones hand using towels, or cotton gloves. If a piece of glassware is stuck in a stopper then one should ask for assistance from their teacher.
Fantom [35]3 years ago
4 0

Answer: between the second and third finger

The correct method of removing a glass stopper is to grasp it between the second and third finger with the help of the thumb. If the glass stopper is stuck, you can use the tap method by using many gentle tap and keep on turning the flask. Another technique is to put oil or use a flame to expose it to heat.

 

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Why is it important for the cell membrane to allow materials to enter and leave the cell
umka21 [38]
<span>Cell membrane needs to allow and exit the materials that enter the cell because the cell needs nutrients and these nutrients are converted into molecules that aid in many cellular activities like repair, divide and form structures and biomolecules.
Also to excrete wastes and other harmful materials for the cell.
This continues because the cell wants to attain homeostasis.

Homeostasis is the state where the internal and external part of the body maintains and establishes balance and equilibrium. This is achieved through cellular processes in the body, the integumentary system regulates the body temperature, the hypothalamus –hunger and thirst of the individual and other interrelated organ systems that make the body healthy and in the state of equilibrium. Now, when diseases or disorders appear they disrupt the organ systems in the body thus, causing imbalance state –high fever, inability to focus and etc.<span>
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5 0
3 years ago
The Monterey pine and the Bishop's pine inhabit some of the same areas of central California. The Monterey pine releases pollen
Naddik [55]

Answer:

The Monterey pine and the Bishop's pine inhabit some of the same areas of central California. The Monterey pine releases pollen in February, while the Bishop's pine does so in April. This is an example of <u>temporal</u> isolation.

Explanation:

Temporal isolation is a form of reproductive isolation in which two or more species reproduce at two separate times.

<u>For example:</u> Northern america leapord frog mates in April and North America Bullfrog mates in july.

As in the given scenario, reproductive isolation is occuring in which two species (Monterey pine and Bishop's pine) are reproducing (producing pollens) at two separate times(February and April). Hence it is an example of temporal isolation.

3 0
3 years ago
Cells in a large multicellular organism communicate with each other by chemical signals. These signals are passed from one cell
VladimirAG [237]

Answer:

Cells in a large multicellular organism communicate with each other by chemical signals. These signals are passed from one cell to another. To receive and respond to a chemical signal, a cell must have a <u><em>receptor</em></u> for that chemical.

Explanation:

To generate a physiological response, all cells in the body have special proteins called receptors. These receptors are involved in detecting a chemical signal and generating a response. The receptors are specific for different kind of chemical signals. For example, a dopamine receptor will bind a dopamine molecule whereas an insulin receptor will be able to bind an insulin molecule. Apart from chemical signals, some cells might also respond to mechanical signals.

7 0
3 years ago
The table shows the relative size of the genomes (total DNA in the nucleus), number of genes, and number of chromosomes for a va
9966 [12]
You don't show the table...but you should see that the more complex an organism, the more chromosomes and the more genes it has.

A bacteria has a small genome. perhaps it has about 5000 genes. it also has 1 chromosome.

Yeast are more complicated than bacteria. Saccharomyces cerevisiae (the yeast that makes beer, wine and bread, has about 6300 genes and 16 chromosomes.

A human has 46 chromosomes (23 pairs), and has likely around 20,000 genes.
6 0
3 years ago
Read 2 more answers
What is a vacuole?? and what does it do??
Serjik [45]
The vacuole is a "container" in the cytoplasm in a cell that stores water, food, and waste.

4 0
3 years ago
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