Answer:
In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed.
Explanation:
Physical change examples:
An ice cube melting into water in your drink.
Freezing water to make ice cubes.
Boiling water evaporating.
Chemical change examples:
Burning wood.
Souring milk.
Mixing acid and base.
hope this helps
List 3 methods of fossilization and describe the process of each
Answer:
preservation of original remains- when the original remain is still in the rock/dirt, typically shells and bones.
permineralization- when the pores of plant materials, bones, and shells are impregnated by mineral matter from the ground, lakes, or oceans
molds and casts- casts preserve a three-dimensional impression of remains buried in sediment, the mineralized impression of the organism left in the sediment is called a mold.
replacement- form when water dissolves away dead tissue and leaves minerals in its place.
compression- a fossil preserved in sedimentary rock that has undergone physical compression
petrifaction- when the organic plant or animal material is replaced with minerals and eventually hardens into rock
Carbon dioxide. We read about the excess of carbon dioxide in the atmosphere and now it may be influencing our climate. But the oceans currently absorb about a third of human created a carbon emissions about 22 million times a day. The oceans have always been a carbon dioxide store house as the illustration shows. But this huge influx of carbon is changing the oceans. What is one change that would expect to happen
Answer:
Increase the pH of water.
Explanation:
One change that would expect to happen the increase in pH of ocean water because carbondioxide gas is dissolved in water make it acidic. This acidic water greatly affect the marine animals such as oysters and corals whose shell is dissolved due to acidic nature of water so we can say that carbondioxide gas increases the pH of ocean water.
It's the middle of the day and you haven't eaten lunch yet. Your stomach starts to rumble. Is this an example of an internal or external stimulus?
O external
O internal
The kingdom that includes all the unicellular organisms that do not fit into any other category is
a. archaebacteria
b. fungi
c. protist
d. plantae
Example #2: Oil is poured into a glass water. The oil and water are mixed.
What happens over time?
A) The oil becomes evenly distributed in the water.
B) The oil separates out.
C) The oil chemically combines with the water.
Answer:
C
Explanation:
im a mechanic i know this stuff
Which of the following is an example of a chemical property of an element?
Answer:
An example of a chemical property is corrosiveness.
Explanation:
A chromosomal mutation is best described as —
Answer:
Chromosome structure mutations are alterations that affect whole chromosomes and whole genes rather than just individual nucleotides. These mutations result from errors in cell division that cause a section of a chromosome to break off, be duplicated or move onto another chromosome.
Explanation:
Can someone help me with this question?
If a parent cell has 6 chromosomes, how many chromosomes will there be during mitosis before the cell divides?
What process ensures that all the tissues and organs of an organism are in their characteristic places?
Answer:is any individual entity that embodies the properties of life. ... Organisms are classified by taxonomy into groups such as multicellular animals, plants, and fungi; or unicellular microorganisms such as protists, bacteria, and archaea.
Explanation:
Answer:
Pattern Formation
Explanation:
Cytoplasmic determinants and inductive signals both contribute to the development of a special organization in which the tissues and organs of an organism are all in their characteristic places, a process known as pattern formation.
5. José plans to use a microscope to observe a cell from a maple leaf and a cell from a snake's skin. Which of the following with José most likely
see in both cells?
a. Cell wall
b. Chloroplasts
c. Nucleus
d. Tissue
Which statement about Earth's supply of water is incorrect?
a. Due to global warming, dry places have more intense drought.
b. Due to global warming, wet places are having more floods
c. Earth's freshwater is evenly distributed
d. Freshwater is recycled through the water cycle
Answer:
The answer is C: Earth's freshwater is evenly distributed
Hich statement best describes a change that usually takes place in the human body when the heart rate increases as a result of exercise?
Complete Question:
Which statement best describes a change that usually takes place in the human body when the heart rate increases as a result of exercise?
Group of answer choices.
A. More oxygen is delivered to muscle cells.
B. Blood cells are excreted at a faster rate.
C. The rate of digestion increases.
D. No hormones are produced.
Answer:
A. More oxygen is delivered to muscle cells.
Explanation:
An aerobic exercise refers to all forms of physical activity that an individual engages in, so as to increase the heart rate (from low to high intensity) in response to the level of oxygen required by any activated or working muscle in the human body.
Generally, aerobic exercise help various individuals to prevent cardiovascular diseases because it makes the heart to beat faster (heart rate increases) to enable it supply more oxygen, which makes the heart to effectively and efficiently pump blood more.
Some examples of aerobic exercise (cardiofitness activity) includes cycling, swimming, jogging, walking, skiing etc.
Hence, the statement which best describes a change that usually takes place in the human body when the heart rate increases as a result of exercise is that more oxygen is delivered to muscle cells.
Choose the statement that best describes a hypothesis.
Select one:
O a. A guess about something that might happen in an experiment.
O b. An educated guess about something that might happen in an experiment.
O c. A prediction about something that might happen in an experiment.
d. An explanation about something that might happen in an experiment.
Check
Answer:
B: An educated guess about something in an experiment.
Explanation:
A hypothesis is when you take information you already know and make an assumption to what you think will or won't happen.
HEY! PLEASE ANSWER THIS TEST QUESTION! THE CORRECT ANSWER SHALL BE MARKED AS BRAINLIEST AND I WILL FOLLOW YOU ( you will also get points ). THANKS!!
⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️
Is smelt fish good for people with gastritis or stomach problems and if so...how?
THANKS!
Answer:No because they tend to have issues ceeping food down so a slight smell of fish may cause them to keep getting sick.
Explanation:
The cheetah is considered one of the fastest land animals on Earth. How does the cheetah get the energy to run? Construct an explanation to describe how the cheetah's energy and photosynthesis are related.
Answer:
Well plants are used for the animals that cheetahs eat if the animals like zebras didn't have the plants they would not survive.
Explanation:
Why do you think it’s so important for the mitochondria to work properly ?
They help turn the energy we take from food into energy that the cell can use. But, there is more to mitochondria than energy production. Present in nearly all types of human cell, mitochondria are vital to our survival. They generate the majority of our adenosine triphosphate, the energy currency of the cell.
Use the idea of diffuseition to explain how the smell of perfume travel.
Answer:
Diffusion is a process in which a movement of substance takes place from a high concentration area to a low concentration area due to the random movement of the particles.
The smell of perfume travel because the particles move from their high concentration to low concentration and mix with the gases present in the atmosphere. Diffusion happens in gases more faster than liquids and solids because of the random movement of their particles.
PLEASE HELP ME WITH SCIENCE WILL MARK BRAINLIEST!
1: What gases are used and expelled by photosynthesis and respiration?
2: Where are the largest concentration of ozone and what value does it have?
3: What happens to the surface of the earth when there is an increase in greenhouse gases?
Answer:
1 Photosynthesis uses CO2 and expels O2 and the reverse for respiration
2. stratosphere where ~90% of it is
3. Less infrared radiation is able to escape from the earth into space and that infrared radiation hits the GHG gases and the radiation is turned into kinetic or heat energy trapping which warms up the earth
Explanation:
Answer:
1. Used by Photosynthesis: CO2 Expelled: O2
Used by Cellular respiration: O2 Expelled CO2
2. Most ozone (about 90%) is found in the stratosphere, which begins about 10–16 kilometers (6–10 miles) above Earth's surface and extends up to about 50 kilo- meters (31 miles) altitude. The stratospheric region with the highest ozone concentration is commonly known as the “ozone layer”
3. The surface of the earth heats up
Explanation:
What is the difference between chemical and organic evolution
What types of skills do the Wechsler subtests measure?
Answer:
an estimate of global intellectual ability four composites
Explanation:
Describe 3 places that radiation is absorbed?
I need help
it's for science class
process by which food is absorbed into your blood
Answer:
Small intestine.
Explanation:
The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion. The walls of the small intestine absorb water and the digested nutrients into your bloodstream.
Explanation:
Small intestine.
The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion. The walls of the small intestine absorb water and the digested nutrients into your bloodstream.
HOPE THIS HELPS HAVE A NICE DAY!
What cell tissue helps carry messages? .
The answer ➪ The cellular tissue that helps transport messages is nervous tissue.
Insta: 25k_kemAnswer:
A special cell called a neuron is responsible for carrying these messages. There are about 100 billion neurons in the human brain.
Explanation:
What is not a unique property of water
Answer:
Water molecules stick together by cohesion
Explanation:
This sticking together of like substances is called cohesion. Depending on how attracted molecules of the same substance are to one another, the substance will be more or less cohesive. Hydrogen bonds cause water to be exceptionally attracted to each other. Therefore, water is very cohesive.
I hope this helps out some~ <3
-Dream
Which explains why it is important to eat a full healthy meal before an aftemoon of playing sports? Food provides the carbon dioxide that is a product of cellular respiration? Food provides the oxygen that is a product of cellular respiration? Food provides the glucose that is a reactant in cellular respiration. Food provides the energy that is a reactant in cellular respiration?
Answer:
Food provides the glucose that is a reactant in cellular respiration.
Please list several (at least three) things that could be changed in schools to fit your
answer from question two.
Answer:
Foods, Classes,hours
Explanation:
Foods could be much better to improve students moods
classes can be modified to be more interactive and fun
Schools starts usually at 7 AM and scientifically the brain starts working around 9 nd 10 am
Stress' negative effects are countered by exercise. Norepinephrine, a hormone that can reduce the brain's reaction to stress, is more prevalent after exercise.
What are the things could be changed in schools to fit you?You might not be able to lessen the sources of stress in your school day, but you can alter how you react to it.
Children and teenagers who regularly exercise have better cardiorespiratory fitness, stronger bones and muscles, and better control of their weight.
Lessen their grief and worry, and cut their risk of developing illnesses like heart disease
Because it is the only one you have, it is crucial to appreciate your body. Respecting your body entails protecting it from danger.
Such as being injured by someone else, getting into an accident, or abusing it with drugs, alcohol, or tobacco.
Therefore, such quality is helpful in the maintain fitness of an individual.
Learn more about school here:
https://brainly.com/question/1183890
#SPJ2
Which of the following best describes protein synthesis?
to create proteins from the DNA code using mRNA, TRNA, and Amino Acids
to create a carbohydrate from the DNA code using mRNA, TRNA, and Amino Acids
to create a protein using the mitochondria in the cell
to create a mutation from the DNA code
How does a lack of dissolvable oxygen in waterways affect aquatic biodiversity?
Answer:
I think ‘there will be less oxygen available for the aquatic life due to the microbial activity’. Too much microbial activity utilizes the oxygen dissolved in the water hence making the waters anoxic. This occurs especially after algae blooms. When the algae grow exponentially and later die, microbes that oxidize the organic matter for energy utilize the oxygen and cause dissolved oxygen in the water to deplete. This hence suffocates other aquatic life.
(This is what my sister sayed so I put it down)
Explanation:
answers: When dissolved oxygen becomes too low, fish and other aquatic organisms cannot survive.
explanation: The colder water is, the more oxygen it can hold. As the water becomes warmer, less oxygen can be dissolved in the water.
HELP i need to create a story about cells and their functions the organelles are Cell membrane
Cell wall
Nucleus
Chloroplasts
Mitochondria
Vacuoles
im in 7th grade
Answer:
More than 8.7 million species are living on the planet. Every single species is composed of a cell and it includes both single-celled and multicellular organisms.
The cells provide shape, structure and carries out different types of functions to keep the entire system active. The cell contains different functional structures which are collectively called Organelles, and they are involved in various cellular functions.
Also Read: Difference between organ and organelle
Let us learn more in detail about the different types and functions of Cell Organelles.
Table of Contents
What are Cell Organelles?
List of Cell Organelles and their Functions
Plasma Membrane
Cytoplasm
Nucleus
Endoplasmic Reticulum
Mitochondria
Plastids
Ribosomes
Golgi Apparatus
Microbodies
Cytoskeleton
Cilia and Flagella
Centrosome and Centrioles
Vacuoles
A Brief Summary on Cell Organelles