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2 years ago

What is a physical change?

Biology

2 answers:

artcher [175]2 years ago

8 0

Answer:

if you are referring to a physical change in a reaction, a physical change is a change that will affect the physical appearance of something without changing the composition (what it is made of)

Explanation:

examples of physical changes are things like changes in texture, change in state (water melting or boiling), change in shape (cutting a piece of paper), change in colour (as long as it is not due to a chemical reaction), change in temperature, etc. All of these changes will not change what the item is made of or what is in it. Some of these changes such as colour, state, temperature can also be caused by a chemical change.

maksim [4K]2 years ago

6 0

Answer:

When matter changes form, it's not chemical.

Explanation:

Something like melting of an ice cream. Shredding paper. Something that changes physically. Folding paper is another example.

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At which stage would one be able to first distinguish a diploblastic embryo from a triploblastic embryo?A) fertilizationB) cleav

oee [108]

Answer:

Gastrulation.

Explanation:

Zygote is formed by the fusion of the male and female gamete. The zygote undergoes the process of cleavage to form the different embryonic stages of the offspring.

Gastrulation is the important process of the pre embryonic development. The blastula get multiply and rearranged to form the gastrula. The gsatrulation process includes the formation of three germ layers also known as triploblastic embryo. The three germ layers are ectoderm, endoderm and mesoderm.

Thus, the correct answer is option (C).

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2 years ago

Which of the following strategies can reduce urban sprawl?

Darya [45]

Explanation:

Therefore, people move away to low density areas to have more space. Hence to decrease the urban sprawl creating a green belt will be a feasible option.

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2 years ago

Which group of plants contains the least number of species?

ycow [4]

That would be the <span>Cone-bearing plants.</span>

7 0

2 years ago

Read 2 more answers

According to the Shannon Diversity Index, which of the five blocks above, with each containing 36 squares, would show the greate

Semmy [17]

Answer:

so here correct option is A. 5

Explanation:

solution

as number of population groups live in a definite area is called diversity

so here in 1 there is only 2 groups of population

and in 2 there is 3 types of population groups

and in 3 there is 2 type of population groups

and in 4 there is 4 type population group

but they are not not evenly abundant and population of 1 group that is much less

so it might be a foreign population group

so here in 5 there is 4 type of population group which means it has higher diversity compare to other

so here correct option is A. 5

8 0

3 years ago

True or false? The liver is a component of the alimentary canal.

Oksanka [162]

<h2>False </h2>

Explanation:

Alimentary canal components include mouth, pharynx, esophagus, stomach, small intestine and large intestine whereas liver is a component of the accessory digestive system

The liver is a large organ that is located in the upper right portion of abdomen, beneath the diaphragm
The liver has two large sections, called the right and the left lobes and the gallbladder sits under the liver, along with parts of the pancreas and intestines
The liver and these organs work together to digest, absorb, and process food
The liver's main role is to filter the blood coming from the digestive tract, before passing it to the rest of the body
The liver also detoxifies chemicals and metabolizes drugs
The liver secretes bile that ends up back in the intestines and also makes proteins important for blood clotting and other functions

7 0

2 years ago