What causes a substance’s identity to change during a chemical change?

Answers

Answer 1
Chemical changes occur when bonds are broken and/or formed between molecules or atoms. This means that one substance with a certain set of properties (such as melting point, color, taste, etc) is turned into a different substance with different properties. ... One good example of a chemical change is burning a candle.



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Related Questions

in the presence of a regulatory protein the lac operon is _____.

Answers

Answer:

The correct answer is :  B. not transcribed

Explanation:

The regulatory protein of the lac operon is a repressor. A operon is a stretch of DNA consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway. The genes of an operon are sequentially ordered after the promoter.

help please it's biology​

Answers

Answer:

look

Explanation:

1a. Dendrite

b. cell body

c. nucleus

d. axon

e. soma

2. c, b

3. Vacoule and chloroplast

4. nerve impulse travels from left to right.

5. Sensory neuron sends electrical impulses to a relay neuron.

6. Respiration. Due to respiration in the mitochondria glucose molecules are broken down to release energy.

how is the malphigan body adapted for it's function

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it adapted because in order to be able to run in the human body the heart has to be able to operate

the division of genetic material in a eukaryotic cell is called

Answers

Answer:

Mitosis

Explanation:

lymph is largely composed of water that has escaped from

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Escaped from the Blood Plasma’s

Adaptational characteristics of himalayan animals​

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Answer:

Thick layer of body fat or bubbler, to reduce body heat loss. Strong hooves for walking on rock slopes. Thick fur on paws for protection from cold while walking on snow.

Explanation:

1) Thick layer of body fat or bubbler, to reduce body heat loss. 

2) Strong hooves for walking on rock slopes.

3) Thick fur on paws for protection from cold while walking on snow.

describe how the plasma membrane helps maintain homeostasis

Answers

Answer:

The plasma membrane, also called the cell membrane or phospholipid bilayer, is the sack that surrounds cells. ... The plasma membrane maintains homeostasis in the cell by keeping cell contents in and foreign material out, and by providing controlled avenues for the transportation of fuel, fluids and waste

"Plants can survive on their own, because they make their own food. Animals can’t survive on their own but need plants for survival." A. Do you agree with this statement? B. Why or why not? C. Provide evidence to explain your reasoning.

Answers

Answer:A

Explanation:

Yes yes because it is required for photosynthesis to take place. ... he reactants that go into photosynthesis come out of respiration. Plants can survive on their own, because they make their own food. Animals on the other hand, cant survive without any food source

The top strand of the DNA molecule was used as a template to transcribe the mRNA

Agree

Disagree

Why

Answers

Answer:

The upper strand of DNA is the "mRNA-like" strand. The lower strand is the strand that is complementary to the mRNA. The -35 region (TTGACA) and -10 region (TATATT) of the promoter sequence and the transcriptional start site (the A) is indicated on the coding strand.

the baltimore system classifies viruses based predominantly on

Answers

Answer:

Baltimore classification is a system used to classify viruses based on their manner of messenger RNA (mRNA) synthesis. By organizing viruses based on their manner of mRNA production, it is possible to study viruses that behave similarly as a distinct group.

if woman can not have children does that mean that she does not have all the property of life and is therefore not alive

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why is there only one answer that u put? kinda spiteful


4. Arterioles are the

a. Vein system.
b. Arteries system.
c. Arteries and vein system.
d. Arteries and blood system

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Answer:

b. Arteries system

Explanation:

where is the electron transport chain located?

Answers

Answer: inner mitochondrial membrane

Explanation:

I got asked this question <3

*blank* is the branch of biology and medicine concerned with the study of embryos and their development.

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Answer:

Physiology is the branch concerned with the study of embryos and their development.

What factors affect a person's daily energy requirements?​

Answers

Answer:

Gender, age and body weight are the main determinants of total energy expenditure. Thus, energy requirements are presented separately for each gender and various age groups, and are expressed both as energy units per day and energy per kilogram of body weight.

Explanation:

Pls mark as brainliest answer if it helps you

Answer: 1 people 2 sleep 3 relationship(s)

Explanation:

the people that person is most commonly with has an affect on their endergy because if the people are able to stay up all night the person has less energy which leads to sleep if the person loses sleep they wont have energy and the brain wont function as fast and wont be able to enjoy time with friends and family which leads to relation ships which are created and monitered by the brain if person A is always near person B person A and B will have a relationship called friend ship if brother A is and sister A are twins they will most likely try to do things together or destroy any bonds they have with eachothers friends.

An organelle that releases energy for metabolic activity in a nerve cell is the...?

Answers

Answer:

Mitochondria

Explanation:

Mitochondria is an organelle that creates energy in the form of ATP in all living cells.

Question 41 A basement membrane anchors Multiple choice question. A) muscle tissue to nervous tissue. B) epithelial tissue to connective tissue. C) connective tissue to muscle tissue. D) brain tissue to nervous tissue. E) blood cells to plasma.

Answers

Answer:

B) Epithelial tissue to connective tissue

Explanation:

Mutations that lead to genetic disease commonly cause human illness because:
A. a molecule normally metabolized by an enzyme accumulates to toxic levels.
B. the overproduction of enzymes makes you sick. mutations in DNA cause body cells to self-destruct.
C. mutations cause extra DNA to be made, which gets into your blood, causing illness.
D. most genetic diseases make people more likely to become sunburned.

Answers

Answer:

The answer is A.

Explanation:

I have no explanation for this but I know for a fact that it's A.

The effects of this type of severe weather can include tress blown over by high winds, flooding caused by heavy rains, and damage to coastal areas caused by storm waves. What type of severe weather does this describe?
A. tornado
B. thunderstorm
C. blizzard
D. hurricane

Answers

The answer is: B - thunderstorm.

Answer:

thunderstorm

Explanation:

The primary electron acceptor in photosystem II is __________. Group of answer choices P700 P700 P680 P680

Answers

Answer:

680

Explanation:

When the P680 special pair of photosystem II absorbs energy, it enters an excited (high-energy) state. Excited P680 is a good electron donor and can transfer its excited electron to the primary electron acceptor, pheophytin.

In creating recombinant DNA, some restriction enzymes produce ______ ends in both the source DNA and plasmid DNA, and these ends can stick to each other by ______.

Answers

Answer: Single-stranded; complementary base pairing

Explanation:

Restriction enzymes are essential components of recombinant DNA technology because they can be extracted from bacterial cells and utilized in the lab to modify DNA fragments, including those that contain genes (genetic engineering).

What recombinant DNA produce by restriction enzymes?

An isolated bacterial protein called a restriction enzyme breaks DNA at specific sequence-specific locations to produce DNA fragments with a known sequence at each end.

For several laboratory techniques, such as genetic engineering and recombinant DNA technologies, restriction enzymes are essential.

Therefore, In creating recombinant DNA, some restriction enzymes produce Single-stranded  ends in both the source DNA and plasmid DNA, and these ends can stick to each other by complementary base pairing.

Learn more about restriction enzymes here:

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write a paragraph about Balochistan

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Explanation:

Balochistan is located at the eastern edge of the lranian plateau and in the difficult to define border region between southwest, central and south Asia.

QUESTION 7
All of the following cells might be a product of meiosis EXCEPT?
OA) an egg
O B) a liver cell
OC) a spore
OD) a sperm cell
E) a gamete

Answers

Answer:

B) Liver Cell

Explanation:

An egg and a sperm cell are reproductive cells that are products of meiosis

A spore is produced by meiosis in the sporophyte

A gamete is produced through meiosis

when paleontologists dated the Burgess shale fossils to the Cambrian period because trilobites were found among them, were they using relative dating or absolute dating?

Answers

Answer:

They used relative dating to date the Burgess Shale fossils.

Explanation:

Absolute dating wasn’t discovered yet.

Approximately 3.85 billion years ago, a group of single-celled microorganisms known as __________ were alive, reproducing, and evolving.

Answers

Microbes.  — cells that have a nucleus, like an amoeba or a paramecium

Pathways that transmit sensory impulses are also called ______ pathways because the information travels from sensory receptors superiorly through the spinal cord to the brain.

Answers

Answer:

Ascending pathway

Explanation:

Sensory pathways are ascending pathways

Which is the BEST statement about joint flexibility? A. It is constant for any joint type. B. It is constant within a family. C. It is consistent between an individual's joints. D. It varies from joint to joint. Please select the best answer from the choices provided. A B C D.

Answers

Which is the BEST statement about joint flexibility?

Answer : D

Explanation : It varies from joint to joint.

Hope this helps you!

The amount of flexibility can vary greatly from joint to joint and is affected by various factors such as joint structure, muscle strength and elasticity, age, and physical activity level. Hence option D is correct.

What is joint flexibility?

Joint flexibility refers to the range of motion (ROM) of a joint or a group of joints. It is the ability of a joint to move through its full range of motion without causing any pain or discomfort.

Joint flexibility is an important aspect of physical fitness and is essential for performing daily activities and participating in sports and exercise.

Joint flexibility is determined by several factors, including the anatomy of the joint, the length and elasticity of the muscles surrounding the joint, and the presence of any injuries or medical conditions affecting the joint.

Some joints, such as the shoulder joint, are naturally more flexible than others, like the knee joint.

Flexibility can vary between individuals and between different joints in the same individual. For example, someone may have very flexible hip joints but limited flexibility in their shoulder joints.

Similarly, an individual's joint flexibility can also be influenced by age, gender, and activity level.

Hence option D, It varies from joint to joint. is correct.

To learn more about joint flexibility:

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What part of a plant cell responds to turgor pressure? *

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Answer:

Cell wall. The plant cell wall accounts for the turgidity and the rigidity in plants. The cell wall protects the plant cell from bursting due to the influx of water. Rather than bursting, the cell is able to withstand the osmotic pressure exerted by the water molecules.

Which layer of the atmosphere is experiencing this storm?

Answers

Answer:

Troposphere

Explanation:

Almost all weather occurs in the lowest layer of the atmosphere, called the Troposphere. The exception being large storms like hurricanes and large Thunderstorms. These storms have clouds with great vertical development and the tops of these storms go into the Stratosphere.

Why do we recycle?



in long answer

Answers

We recycle to save resources and make new ones . Also to prevent pollution .and it helps people save some money , also the environment.
By turning bottles, packaging and other plastic refuse into new goods, recycling helps the environment and creates new economic opportunities. Plastics recycling keeps still-useful materials out of landfills and encourages businesses to develop new and innovative products made from them. MAKE SURE TO REWORD THIS!
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