Answer: I hope this helps: Some physical properties change, but the substance keeps its identity.
Explanation:
Answer:
The most important thing for your to remember is that in a physical change the composition of a substance does not change and in a chemical change the composition of a substance does change. Chemical Changes are also called Chemical Reactions. Chemical reactions involve combining different substances.
Explanation:
What is the Law of Conservation Of Matter in your own words
Answer:
The amount of matter in a system stays constant, it is not created nor destroyed.
Explanation:
For example, in a situation such as a chemical reaction, the atoms of the molecules never magically appear or vanish. The atoms of the reactants are simply rearranged into a product. Hope this helps.
Water is constantly in motion and_______. Pls answer ☯︎︎ᴥ︎☯︎︎
Answer:
still
on the top of the ocean or lake the water is always moving but down below the top of the water it will be still or nonmovent
Muscular dystrophy is a neuromuscular disease that weakens a person's muscles. Which main body systems would be involved in this disease? (1 point)
Item 2
nervous, muscular, and respiratory
Item 3
nervous, muscular, and vascular
Item 4
nervous, muscular, and urinary
Item 5
nervous, muscular, and skeletal
Answer:
nervous, muscular, and vascular
Explanation:
Muscular dystrophy (MD) is a group of inherited genetic conditions that cause progressive weakness and the loss of muscle mass. MD is caused by mutations in genes responsible for muscle function. MD not only leads to problems in the muscular system but also may cause disorders of the central nervous system and the circulatory system (especially the heart). For example, Becker muscular dystrophy is a condition associated with arrhythmias and cardiomyopathies. Moreover, MD may lead to vision and speech problems, and result in irreversible structural brain changes.
Answer:
Nervous, muscular and skeletal
Explanation:
Which of the following explains why pearl millet was one of the most important crops in China, India, and West Africa?
It thrived in dry and hot conditions.
It was on a stalk with many clusters.
It was easy to plant and grew rapidly.
It could be made into enough flour to feed many people.
Answer:
It was easy to plant and grew rapidly.
Explanation:
The function of an enzyme depends upon the enzyme's shape and
Answer:
The activities of enzymes also depend on the temperature, ionic conditions, and the pH of the surroundings.
Explanation:
Hope this helps you
Crown me as brainliest:)
Unlike plant-like protists, animal-like protists are always
A-autotrophs
B-heterotrophs
C-sexual reproducers
D-asexual reproducers
Answer: B heterotrophs
Explanation: animal-like protists (known as protozoans, or 'first animals') share heterotrophic behaviors, meaning they acquire their nutrients by exhibiting a very animal-like hunting behavior and consume bacteria or other smaller protists.
Answer:
heterotrophs
Explanation:
What does brianliest mean?
Answer:
Brainliest is where you, the creator, think that a specific person did a good job. If you give them brainliest it is saying thank you to one person but not the other.
Good day mate, Mallory <3
When it is winter in North America it is summer in South America. Explain why this happen.
Answer:
north america is on the northern hemisphere, so we get more direct sunlight when the southern hemisphere (south america) gets less direct sunlight and visa versa.
Explanation:
North america is on the northern hemisphere, so we get more direct sunlight when the southern hemisphere (south america) gets less direct sunlight and visa versa.
What are the hemispheres of earth?Any circle drawn around the Earth divides it into two equal halves called hemispheres. There are generally considered to be four hemispheres: Northern, Southern, Eastern, and Western.
Hemisphere comes from the Greek, and combines the prefix hemi-, for "half," with sphere, or "perfectly round ball." We talk about the earth as divided at the equator into the northern and southern hemispheres.
It is important because it brings about differences in the climates of the Northern and Southern hemisphere because of the Earth's seasonal tilt towards and away from the sun.
Learn more about hemispheres:
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BEST/FIRST ANSWER GETS BRAINLYEST!!!! PLEASE HELP
Which evidence shows that landmasses had different climates millions of years ago and supports the theory of
continental drift?
Ⓐ coal fields in several continents
Ⓑvolcano formation
Ⓒtropical plant fossils on
ⒹArctic islands
folded mountains in Africa and South America
A group of people have white blood cell (WBC) counts that are from 4,500 to 10,000 WBC/ml. All cell count values in that range are equally abundant in the population. What is the mean WBC count in the population?
Answer:
7250 WBC/ml
Explanation:
The mean of any value is the average of a certain amount of given values. When this is taken into cognizance, to get the mean White Blood Cell count of the population, given two ranges, is to add and divide both together. This gives us
10,000 + 4,500 = 14,500 WBC/ml
The mean then is
14,500 / 2 = 7250 WBC/ml
Therefore, the mean White Blood Cell count in the population is 7250 WBC/ml
Cell walls are made of cellulose, a complex carbohydrate. Which of the following compounds is the basic unit of the cell wall?
a
a
Ob
sugars
amino acids
nucleic acids
lipids
(
c с
d
Answer:
sugars
Explanation:
What is the theme for Marigolds. Show evidence drone the story.
Answer:
The main theme or message in the story "Marigolds" is the importance of empathy and compassion. In the story, Lizabeth is reflecting on a crossroads in her life, an incident that marked the change from child to woman.
Explanation:
The only step in cellular respiration that produces no energy (ATP) is:
Answer:
Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP. The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.
Explanation:
Why do aquatic organisms have to constantly deal with osmosis
Answer:
Because salt is an agent that attracts and draws out water, the surrounding salt water draws water from inside the fish so they must constantly drink water to replace the lost water in their system. The process of water being drawn out of the body by the surrounding water of higher salt levels is known as osmosis.
Explanation:
How many valence electrons does Neon have and does it have cations and anions???
Answer:
Neon has eight valence electrons and it does not have cations or anions.
Explanation:
Neon is a noble gas, meaning it has already fulfilled the octet rule and has eight electrons in its valence electron shell. Hence, it does not want to lose or gain any more electrons, and does not have cations or anions.
Hope this helped!
Answer:
Neon has eight valence electrons and it does not have cations or anions.
Explanation:
Which statement correctly describes the effect of abiotic factors on population density?
A. A change in abiotic factors always decreases the size of a population.
B. A change in abiotic factors always increases the size of a population.
C. A change in abiotic factors never impacts the size of a population.
D. A change in abiotic factors may increase or decrease the size of a population.
Answer:
option A is correct
Explanation:
All living organisms are composed of:
Answer:
D
Explanation:
Answer:
D. one or more cells
Explanation:
hope this helped!!
plz give brainliest ;-;
Yeast cells, plant cells, and mammal cells all share many similarities in cell signaling. This provides evidence that:________
a. cell-signaling mechanisms are only found in organisms that use methods of sexual reproduction
b. intercellular communication evolved as a way for multicellular organisms to coordinate cell functions
c. eukaryotic cells use signal transduction pathways while prokaryotic cells use a more primitive form of signaling
d. signal transduction pathways appeared in cells before the evolution of multicellular organisms
Answer:
D
Explanation:
Yeast cells, plant cells, and mammal cells all share many similarities in cell signaling. This provides evidence that signal transduction pathways appeared in cells before the evolution of multicellular organisms. Thus, the correct option for this question is D.
What is cell signaling?Cell signaling may be defined as a process through which a cell of an organism may respond to substances outside the cell through signaling molecules found on the surface of and inside the cell.
This biological process of cell signaling is ultimately required in order to accomplish all sorts of metabolic activities that are essential for the survival of living organisms, no matter whether they are prokaryotic or eukaryotic, unicellular or multicellular.
Therefore, the correct option for this question is D.
To learn more about Cell signaling, refer to the link:
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DNA polymerase is responsible for pairing the new nucleotides with the template strand. If the template strand reads ATCCGC, what will the newly synthesized strand read
Answer:
ATCCGC-TAGGCG
Explanation:
The process of genetic engineering may include either four or five steps. The diagram represents the five-step process.
Which best describes step 2?
A) Restriction enzymes cut the DNA into fragments; the fragments join with the host DNA to create recombinant DNA.
B) Recombinant DNA is inserted into a biological vector; the vector houses the recombinant DNA and can produce copies of DNA for itself and the recombinant DNA.
C) Cloning of the recombinant DNA occurs; the DNA is cloned in the biological vector to create more DNA for use in the host.
D) Recombinant DNA is inserted into a mechanical vector; the mechanical vector allows the DNA to be inserted into the DNA clone for use in the host.
Answer:
The correct answer is A) Restriction enzymes cut the DNA into fragments; the fragments join with the host DNA to create recombinant DNA.
Explanation:
correct on edge :)
**please mark brainliest!!
Answer:
A. Restriction enzymes cut the DNA into fragments; the fragments join with the host DNA to create recombinant DNA.
Explanation:
Edge 2022.
What does it mean to move UP the concentration gradient?
Answer:
"Up" or "against" a concentration gradient means from low concentration to high concentration. Moving in this direction requires some sort of energy input, such as active transport using ATP, or an electrical gradient, or something else.
Explanation:
If this helps, is it possible to give me brainliest please?
CAN SOMEONE ANSWER THIS WHOLE THING PLZ!!!!!!!!!
I WILL MARK BRAINLIEST!!!!!!
Answer:
carbon atomic number:6
carbon protons:6
electrons:6
group: 14
carbon valance eletrons:4
oxygen number:8
oxygen protons: 8
group: 16
valanece:6
Potassium: 19
protons: 19
eletrons:19
valance: 1
group:1
Arsenic: 33
protons:33
eletrons:33
valance: 5
group: 15
Iodine: 53
53
53
Valence: 7
group: 17
Calcium: 20
20
20
group:2
valence:2
boron: 5
5
5
group: 13
valance: 3
neon 10
10
10
group:18
valance: 8
Explanation:
What would be the best diet to your knowledge?
Identify all statements that accurately describe the structure of the pyruvate dehydrogenase (PDH) complex.A. A regulatory kinase and phosphatase are part of the mammalian PDH complex. B. Several copies each fo E1 and E3 surround E2. C. E2 contains three domains. D. The complex contains multiplex is made up of several copies of E1.
Answer: Options A, B ,C and E are correct
Explanation:
The structure of pyruvate dehydrogenase complex comprises if three enzymes E1, E2 and E3 which convert pyruvate to acetyl CoA. The three enzymes are have several copies.
Within the PDH complex, the E2 subunit forms the structural unit, contain three domains and are surrounded by E1 and E3. The E 2 accepts acetyl groups from E1 and transmit the group to coenzyme A. The decarboxylation of pyruvate and its conversion to acetyl-CoA by the PDH complex comes first before glucose carbon enter into the tricarboxylic acid (TCA) cycle. This process is important to the aerobic oxidation of glucose .
a 1000 kg car speeds up from rest to 25 m/s in 10 seconds.how much force acts on the car?
Answer:
a great week to week to week to week I was
Explanation:
yhbbljgh
Disregard question number 5! But pleaseeee help me with 1-4
Answer:
1. The process in which organisms find and colonize a near lifeless area.
2. They are different from each other because secondary supports life, as primary does not.
3. Pioneer species is a hardly classified species which establish themselves in a disrupted ecosystem and trigger the process of ecological succession.
4. Biotic factors support life and the aspects. Abiotic factors involve external life. They interact with each other when the abiotic provide for the biotic.
Hope this helped! Please mark brainliest!
Which part of photosynthesis is represented by the diagram to the right
Answer:
Light-dependent reactions
Explanation:
Photosynthesis occurs in two stages: light-dependent reactions and light independent-reactions. This last stage is often called Calvin cycle.
The diagram shows reactions occurred in the thylakoid membranes which are located inside the chloroplasts. Therefore, we can identify that these reactions are the light-dependent reactions. During this part of photosynthesis, the energy from the sunlight is absorbed by a pigment called chlorophyl (Chl). Then, it is sequentially coverted into chemical energy stored in the form of molecules: NADPH (nitotinamide adenine dinucleotide phosphate) and ATP (adenosine triphosphate).
Definition: The third planet from the sun.
Example: You are sitting on it, and it's not a chair.
Answer:
Earth
Explanation:
Answer:
earth
Explanation:
because it's the third planet from the sun
why should we care our sense organ
Answer:
Our sense organs are very important for us as they allow us to connect with the world. Our five sense organs a
What is one difference between p-waves and s-waves