Which chemical is a compound ?
A. Hydrogen
B. Helium
C. Nitrogen
D. Hydrochloric acid
Answer:
It is D
Explanation:
All A,B, and C are a element so D.
3. How far does a secondary wave travel in 10 minutes?
Answer:
Explanation:
1 to 8 km/sec- use this to work out 10 minutes
Answer:
Hi There!
Explanation:
1 to 8 km/sec
S-waves are transverse waves. Even though they are slower than P-waves, the S-waves move quickly. Typical S-wave propagation speeds are on the order of 1 to 8 km/sec. The lower value corresponds to the wave speed in loose, unconsolidated sediment, the higher value is near the base of Earth's mantle.
Which of the following is not directly involved in protein synthesis?
tRNA
mRNA
Ribosomes
Mitochondria
How can I identify an organelle? Please help I have till 11:59 to answer this question.
Answer:
Shape and size?
Explanation:
Explain how a chemical reaction occurs using the following terms
Reactant
Product
Activation energy
Bond
Endothermic
Exothermic
Rate
A chemical reaction is a process where two or more reactants are converted to one or more products at a given rate, which requires a minimum amount of energy.
A reactant is a starting substance in a chemical reaction, whereas products are formed at the end of the reaction.The rate of reaction is the velocity of the chemical reaction.Activation energy refers to the minimum amount of energy required to activate reactants and thus start a chemical reaction. The chemical reactions store/release energy by destroying/building chemical bonds between atoms/molecules.Exothermic reactions release energy when the bonds are formed; whereas endothermic reactions consume energy.In conclusion, a chemical reaction is a process where two or more reactants are converted to one or more products at a given rate, which requires energy. These reactions can be exothermic processes or endothermic processes.
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NA in the nucleus carries the genetic code for making proteins in ribosomes. The diagram shows a model of DNA. Which part of the DNA molecule codes for the amino acid sequence in the protein?
Explanation:
i think the fatty acid because amino acids are also the fatty acids
Read the statement.
In a food chain, algae carry out photosynthesis, which produces their food. Some small fish feed on the algae. Seabirds then feed on those small fish.
Which statement correctly describes this food chain?
Select one:
The seabirds are the producers.
The fish are the primary consumers.
The seabirds are the primary consumers.
The fish are the producers.
help!
Answer:
option B ,is correct answer of this question
Answer:
B
Explanation:
Help Plz
Which of these does NOT describe Gary Paulsen? (5 points)
a
adventure writer
b
master storyteller
c
olympic champion
d
Iditarod participant
Answer:
c
Explanation:
One difference between cell division in plant cells and in animal cells is that plant cells have...
A. centrioles.
B. centromeres.
C. a cell plate.
D. chromatin.
Answer
A. centrioles
higher plant cells do not have centrioles in cell division.
Whoever answers I will mark brainlest
Answer:
Anaphase and Prophase
Explanation:
Which statement correctly describes blood sugar monitoring in diabetics?
Type II diabetics do not need to monitor their blood sugar.
Type I diabetics should monitor their blood sugar at least three times a day.
Gestational diabetics should monitor the blood sugar at least three times a day.
All diabetics need to monitor their blood sugar after every meal.
Answer:
Answer is 2
Explanation:
Type 1 diabetics should monitor their blood sugar at least three times a day, correctly describes blood sugar monitoring in diabetics.
I hope it's helpful!
Answer:
C)Type I diabetics should monitor their blood sugar at least three times a day.
Explanation:
Large moving cells in the blood and lymph nodes that ingest and digest foreign particles or wall off material are called:
bacteria
fibroblasts
viruses
leukocytes
Answer:
Leukocytes
Explanation:
Leukocytes = White blood cells that digest foreign particles
we should not touch and test acid. Give reason why?
Answer:
because the toxic of it can burn your skin the toxic of acid is very dangerous so we couldn't touch it if we touch it our skin or your skin will burn or turn it into ashes
what is a example of a formation at a divergent boundary
Answer: C - Ridge
Hope this helps :)
Disturbances in Ecosystems Quick Check
What is the function of a top predator in an ecosystem?(1 point)
-It helps increase the number of prey.
-It creates imbalance in the ecosystem.
-It increases the food for other predator species.
-It maintains other populations.
Which is considered a top predator in the ocean?(1 point)
-a sea lion
-a bird
-a small whale
-a shark
What happens to an ecosystem during normal seasonal flooding?(1 point)
-The biodiversity of the area stays the same.
-The biodiversity of the area reaches equilibrium.
-The biodiversity of the area decreases.
-The biodiversity of the area increases.
How is the impact of seasonal flooding different from damming a river?(1 point)
-Seasonal flooding is not considered an ecological disturbance like damming.
-Seasonal flooding does not impact biodiversity for as long term as damming.
-Seasonal flooding helps balance biodiversity, but damming does not.
-Seasonal flooding increases biodiversity, but damming does not.
Would a long-term increase in the average temperature of a region be considered a significant disturbance in the ecosystem?(1 point)
-No, because it would not create large-scale changes in the environment.
-Yes, because any slight change in temperature is considered a disruption.
-Yes, because such a change could have a large-scale impact on wildlife.
-No, because increases and decreases in average temperatures are normal.
Please help and thank you.
Answer:
D / D / D / B / C
Explanation:
I just took the quick check myself, got all of them right :)
1 ) Top predators do not increase the number of prey, neither do they create imbalance or increase the food for other predator species. This is common knowledge, so ruling those out you are left with D. As they do in fact maintain the rest of the food chains populations.
2) A top predator in the ocean is a shark. Of course some might mistake a small whale to be a top predator, but sharks are actually known to hunt whales- the small ones anyway. A sea lion fish or a bird wouldn't exactly be a candidate for the top of the food chain either.
3) During seasonal flooding, to an area such as a river, water gets added to the existing pool, and many biotics and abiotics take this to their advantage. As a result- biodiversity actually increases during these times, but once season flooding is over it goes back to being the same.
4) The impact difference of seasonal flooding from damming a river is actually quite big. Seasonal flooding is.. well.. seasonal.. while damming for the most part is permanent, or will be there for much longer time span than season flooding is. Seasonal flooding increases biodiversity, but damming does not. This is becuase of the long term increase of water, the environment has to readapt, as plants that were once there drowned, and the known species most likely ran off to find better environment. Here it takes a while but eventually new abiotic and biotic species adapt and reclaim the dammed area of the environment.
5) Yes, a long term increase in the average temperature would disturb the ecosystem. Even if it's for a little bit, it's still something the environment wouldn't be used to, meaning the plants and animals there would have to learn to adapt for the time being- even if its temporary.
1: It maintains other populations
2: A shark
3: The biodiversity of the area increases
4: Seasonal flooding does not impact biodiversity for as long term as damming.
5: Yes, because such a change could have a large-scale impact on wildlife.
please help me there is 8 question please
Answer:
1. B mass/distance
2. B Gravitational attraction between the sun and Venus
3. A All objects would fly off into space
4. B Axis
5. A Rotation
6. A Increases
7. B Decreases
8. When there is no force acting on an object, it won’t change it’s path and will keep going straight until another force acts upon it.
Intermolecular forces hold biomolecules together. They are also found between biomolecules. Which of these is a place you would expect to find hydrogen bond in a biomolecule?
a) between amino acids in a protein
b) between adenine and thymine in DNA
c) between the ribose and phosphate in RNA
d) between glucose and fructose in a sucrose molecule
(USA Test Prep)
Answer: B.
Explanation:
Answer:
B) Between adenine and thymine in DNA
Explanation:
A hydrogen bond would be found between adenine and thymine in DNA.
Peptide bonds- found in proteins
Covalent bonds - found in the backbone of nucleic acids
Glycosidic links - found in carbohydrates such as sucrose
Therefore, the only answer left, after you cross out the other from the information above, is B: Between adenine and thymine in DNA
Describe the chemical composition of bone.
please answer in your own words
How does a mechanical wave affect the matter in which it travels through?
A
It changes its position forever
B
It moves perpendicular to the direction of the wave.
C
It has not affect on it
D
It may displace it temporarily, however when the wave passes the matter returns back
to its original position.
Answer:
The best and most correct answer among the choices provided by your question is the fourth choice or letter D "The thin membrane that closes the cavity of the middle ear from the outside changes position."
Your ears pop in airplanes because the air high above the surface of Earth is less dense than air near the surface, because air near the surface has all the air above it pushing down. Your inner ear has air trapped in it and as the atmospheric pressure changes, it causes pressure on your eardrum.
I hope my answer has come to your help. Thank you for posting your question here in Brainly.
Explanation:
help me plz i’ll give extra points
Answer: see below
Explanation:
So, kinetic energy means an object is already in motion. Potential energy, means an object has the potential to transfer energy but is idle. Mechanical energy is something like a wheel turning. That is also correlated with kinetic energy. Which in turn, means when a wheel rotates, the object is in motion. Therefore transferring energy.
Which of the following animals belongs in class Cepholopoda?
1. snails
2. octopuses
3. glass sponges
4. jellyfish
Answer:
2. octopuses
Explanation:
A cephalopod is any member of the molluscan class Cephalopoda such as a squid, octopus, cuttlefish, or nautilus.
Octopuses belongs in class Cepholopoda. So, the correct option is (B).
What is Cephalopod?A cephalopod is defined as any member of the molluscan class Cephalopoda such as a squid, octopus, cuttlefish, or nautilus where specifically marine animals with bilateral body symmetry, a prominent head, and arms modified from primitive molluscs or is characterized by a set of tangents foot. These animals use gills to breathe and are invertebrates (lack backbones).
Cephalopods are most notable for their many arms and soft bodies, while ancestral cephalopods are known mostly from their shells because they are well preserved as fossils. The octopus, squid, cuttlefish, and chambered nautilus are familiar representatives.
Thus, Octopuses belongs in class Cepholopoda. So, the correct option is (B).
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A_____is the orbiting of an object around another body
Answer:
revolution
...................
A revolution is the equivalent of one entire orbit around something
(ie, earth around sun/ moon around earth) and is the equivalent of one year.
Answer: A REVOLUTION is the orbiting of an object around another body.
Explanation: revolution- the orbiting of an object around another object. One complete revolution around the sun is called a year.
What’s the dna strand of AATCATCTT
Answer:
The complementary strand of DNA for AATCATCTT is TTAGTAGAA
How did the mutation change the hemoglobin protein?
ASAP
Answer: A mutation Changes by its mistake in the DNA which results in the wrong amino acid being incorporated into a protein because of change, that single DNA sequence change, results in a different amino acid codon which the ribosome recognizes.
Explanation:
A mutation changes the instructions of a gene, which can also change the protein. Sometimes this change makes it so the protein can't do its job as well. And this is what happens with sickle cell anemia. A mutation in the hemoglobin gene changes the hemoglobin protein in a way that causes sickle cell anemia.
Distinguish between an antibiotic and a pathogen.
An antibiotic is designed to kill bad cells to help aid illnesses. However, a pathogen is like a virus or a bacteria that can give a disease. Doctors observe pathogens on a atomic and cellular level to alienate the pathogens weaknesses and what does or doesn't kill it. An antibiotic is commonly used to kill these pathogens and prevent infections.
Basically, the big difference between an antibiotic and a pathogen, is that an antibiotic is used as a source of protection and a pathogen is a seperate living virus (disease). Both are key components of finding cures for harmful viruses and illnesses.
Hope this helps.
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According to Maslow, which are categories of basic human needs? Check all that apply.
Answer:
♥︎Physiological
♥︎Self-actualization
♥︎Self-esteem
♥︎Love and belonging
♥︎Safety and security
⚠︎︎ Noo! Water and employment
Yw ❤️
white blood cells with long lobed nuclues are called....?
Answer:
polymorphonuclear leukocytes
A mutation in which cell would only affect the organism and not future generations
A. Sperm cell and lung cell
B. Sperm cell and egg cell
C. Nerve cell and brain cell
D. Egg cell and liver cell
Answer: B. sperm cell and egg cell
Explanation:
Which of these processes does not occur as part of the cell cycle in animal cells?
1) Mitochondrial DNA is released into the cytoplasm
2) Two identical copies of chromosomes are produced
3) Cell growth and mRNA synthesis occur
4) Nuclear DNA is replicated
The cell cycle is an essential process of growth and function. It has many phases which divide the genetic material and the cytoplasmic organelle equally into new cells. The cell cycle is crucial for survival.
Option 1) Mitochondrial DNA released into the cytoplasm is the process that does not occur in the animal cell cycle.
Cell cycle steps in animals can be explained as:In the animal cell cycle during the synthesis step, the genetic material replicates to produce two identical chromosomal groups.The cell divides to grow and the processes of central dogma including mRNA synthesis and protein formation occur.Mitochondrial DNA does not get released in the cytoplasm but remains sustained in the mitochondria structure.Therefore, mitochondrial DNA is not discharged into the cytoplasm.
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Answer:
love it!
the first choice is A) Mitochondrial DNA is released into the cytoplasm.
Explanation:
give me a mark for brainly
Hypothesis: If the amount of protein is calculated in three different lipid levels of milk, then whole milk will have the highest level of protein. What is the independent variable in this experiment? Type of protein Amount of protein Amount of milk Type of milk
Answer:
Type of milk
Explanation:
Independent variable is the variable that the experimenter changes or manipulates in an experiment. It is the variable that causes the dependent variable to change.
In this experiment, the hypothesis, which shows the relationship between the independent and dependent variable is stated as follows: IF the amount of protein is calculated in three different lipid levels of milk, THEN whole milk will have the highest level of protein. This shows that the amount of protein is dependent on the TYPE OF MILK used, which is the independent variable.