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valina [46]
3 years ago
11

1. What is mitosis in a living cell?

Biology
1 answer:
Gekata [30.6K]3 years ago
8 0
<span>B. the creation of two daughter cells with half the number of chromosomes that the parent cell has by the process of cell division 
</span><span>D. The exchange of solute molecules across a permeable membrane from areas of high concentration to areas of low concentration
</span><span>A. Osmosis occurs through a semipermeable membrane. Diffusion occurs through a permeable membrane.</span>
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Match the word with its definition. 1. descriptive statistics sum of all numbers divided by the total number of scores; the aver
Dima020 [189]

descriptive statistics sum of all numbers divided by the total number of scores; the average = mean

the number that occurs the most often in a given set of number = mode

relationship between two variables = correlation

the middle number in a set of ordered numbers = median

6 0
3 years ago
in the winter, ice floats on the top of a lake. how is this helpful to the plants that live in the lake
Temka [501]
It's not.

If the plants are growing under the ice and the ice is floating above it on the surface of the water and the ice blocks the light from getting to the plant.
8 0
3 years ago
Read 2 more answers
What would rescued suvivors from the titanic look like?
Volgvan
Their skin would not be normal because they would have frost bite from the cold water. they would also look depressed and tired as they would suffer ptsd and suvivors guilt. 

8 0
4 years ago
The various parts of the endomembrane system serve different functions in the cell. In this activity, you will identify the role
mixas84 [53]

Answer:

1. protein synthesis - (b) rough ER

2. protein modification and sorting - (c) Golgi apparatus

3. macromolecule digestion - (d) lysosomes

4. lipid synthesis - (a) smooth ER

5. autophagy - (d) lysosomes

6. cisternal maturation - (c) Golgi apparatus

7. calcium ion storage - (a) smooth ER

8. poison detoxification - (a) smooth ER

Explanation:

Rough ER or rough endoplasmic reticulum with the help of ribosomes is responsible for protein synthesis and their subsequent transport to various other parts of the cell that is why both these organelles are also known as protein factory.

Soon after proteins are synthesized with the help of rough ER, they are transported to another network of organelle known as golgi apparatus. In golgi apparatus, the nascent protein is further modified and sorted. Modification and sorting of proteins help in identifying their final destination i.e. whether the protein is meant for mitochondria or plasma membrane or some other organelle. Maturation of cisternae also takes place in golgi apparatus.

Smooth ER or smooth endoplasmic reticulum is responsible for lipid synthesis, storage of calcium ions and poison detoxification. Most of the steroid hormones, triglycerols etc. are synthesized in the smooth endoplasmic reticulum. Smooth ER also stores calcium ions so that whenever they are required they can be sequestered back into the cytosol. Poison detoxification occurs in the smooth ER of liver because the enzymes present in the liver are capable of converting such hydrophobic substances into hydrophilic substances so that they could be easily secreted out of the body.

Lysosome is the organelle which is responsible for macromolecule digestion and autophagy. Lysosomes have very low pH and a lot of hydrolyzing enzymes which can easily digest macromolecules. Autophagy is a self degradable process in which damaged cells are eaten or destroyed by lysosomes so that their macromolecules could be broken down into their monomers so that they can be reused by our body.

3 0
4 years ago
When a bird eats a small insect it can be considered a secondary consumer but what is the bird considered as when it eats seeds?
IRISSAK [1]
If the bird eats a small insect that ate the seeds and is a Secondary consumer, then it was relying on another organism for food. Where as the Primary consumer eats what grows and doesn't really on another organism for food. So the answer would be Primary Consumer.
5 0
4 years ago
Read 2 more answers
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