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dalvyx [7]
2 years ago
14

A log is added to a camp fire and is burned. This is an example of a _ change. Physical change or chemical ? Plz help thx

Biology
2 answers:
a_sh-v [17]2 years ago
6 0

Answer:

chemical change

Explanation:

Mamont248 [21]2 years ago
3 0

This is a chemical property. When wood catches fire and turns into ash letting off lots of smoke, this is a chemical change.

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Kidneys are often compared to filters because they cleanse unwanted waste from both frogs and humans true or false ?
PtichkaEL [24]

"Kidneys are often compared to filters because they cleanse unwanted waste from both frogs and humans" is TRUE.

Answer: Option A

<u>Explanation: </u>

Frogs also have the excretory system with two kidneys and similar to mammals. Its function is to eliminate the nitrogen product from the blood. Frogs make large volumes of dilute urine to wipe out harmful products from the tubules of the kidneys.

Tadpoles and aquatic frogs excrete the nitrogen as ammonia, but most terrestrial adults excrete it mostly as urea which is less threatening substance. A few tree frog species with little water access excrete the still less harmful uric acid.

5 0
3 years ago
A 35-year-old male complains of a "pressure" type headache to the back of his head and neck. He states that he woke up with the
tigry1 [53]

Answer:

Answer is D. Tension

Explanation:

Tension headache is a type of headache that can be described as feeling of dull or moderate pain in the head, which can be inform of a tightness around the head and the neck.Tension headache is also known as stress headache.

It has been discovered that, various activities like driving for a long period of time, staring to a computer for a long period and exposure to cold temperature, can cause tension headache.

The following activities can be developed to reduce or avoid tension headache.

* Drinking a lot of water.

* Regular exercise.

* Sleeping very well

* Limiting stress

* Eating foods like almond and walnut.

In this case, the complaint of a 'pressure' type headache to the back of the head and neck by the man, was a typical feeling ,synonymous to tension headache.

3 0
2 years ago
Which of the following is NOT a freshwater ecosystem? a . a river b . a lake c . an estuary d . a stream
JulijaS [17]
They are all freshwater. So the closest would be c. an estuary since it has a free connection with the sea since the sea is not freshwater.
So C.
hope this helps!
8 0
3 years ago
Read 2 more answers
The sequence of ________________ in a DNA molecule determines the protein that will be produced. A) lipids B) nucleotides C) pro
Nuetrik [128]
The sequence of B) nucleotides in a DNA molecule determines the protein that will be produced.
7 0
2 years ago
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Answersamoeba sisters: video recap mitosis: the amazing cell process that uses division to multiply amoeba sisters video recap o
7nadin3 [17]

1.Mitosis is done by your body cells. What types of cells do not undergo mitosis?

Sperm cells and egg cells do not undergo mitosis. They undergo a different process of cell division called meiosis. The difference between the two types of cell division is that mitosis result in a replication of the parent cell or identical cells. Meiosis contributes to genetic variety, meaning the resulting cells are different from the parent cell in some way.

2.Describe  ways that mitosis is important for your body.

Mitosis is important for growth. Mitosis creates new cells as you grow. If you think about it, where do we get all the extra skin, longer bones, longer hair—they result from the division of cells which create new cells.

Another way it is important is in repair. When you get a cut for example, mitosis helps by producing more cells to repair the gash that was left. New cells fill in the part that was cut. Mitosis also helps with replacing worn out cells.

3. This illustration is trying to demonstrate something that mitosis is not. In mitosis, the cells that are created are identical.

The illustration shows that one type of cell produces a different type, but it is not the case with mitosis. The resulting cells of this type of cell division is identical or twins.

4.Mitosis is just one small part of the cell cycle! Describe what would occur if cells were in mitosis more than they were in interphase.

Interphase makes up most of the cell cycle, it makes up about 90% and mitosis occurs in 10% of the whole cycle.  If cells were in mitosis more than they were in interphase that would indicate an uncontrollable and rapid growth of cells and you can get cancer.

5.When cells are dividing, it is important to understand that they have to move chromosomes equally to both cells. Based on this illustration, describe what a chromosome is made of.

Chromosomes are condensed units found in the nucleus. There are 46 chromosomes each nucleus, or each cell. Chromosomes are made up of protein and DNA. DNA stands for deoxyribonucleic acid and it carries genetic information.

6. In humans, there are 46 chromosomes. They are duplicated during interphase, which in turn duplicates the DNA as well. Chromosomes are counted based on the number of centromeres. The number of chromosomes in living organisms or species differ from each other.  

6 0
2 years ago
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