Answer:
A
Explanation:
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.
. 。 • ﾟ 。 . . . 。 。 . . 。 ඞ ඞ ඞ ඞ ඞ ඞ ඞ 。 . • . [Northstar] was ejected. . . 。 . 。 ﾟ . . , . . .
Why is it a good idea for humans to create models of how populations are changing?
What do models help us do?
Some ___ fungi can be eaten , but there are also some that are harmful to plant life like wheat rust .
A) Zygote forming
B) Sac
C) Imperfect
D) Club
E) Chytrid
right answers only pls
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
What are some things that are hard to classify as living or non living things?
Answer:
Non living things can be classified into
They exist in nature or are made by living things. There are three groups of nonliving things. They are solids, liquids, and gases.
Explanation:
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.
How are the equations for photosynthesis and cellular respiration related
HOPE THIS HELPS! :)
Notice that the equation for cellular respiration is the direct opposite of photosynthesis: Cellular Respiration: C 6 H 12 O 6 + 6O 2 → 6CO 2 + 6H 2 O. Photosynthesis: 6CO 2 + 6H 2 O → C 6 H 12 O 6 + 6O.
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:
Write a lab report for this lesson’s lab.
Explanation:
what's the lesson can u show uss
Answer:
whats the lesson? You cant just write a lab report out of the blue what is the lab about?
Explanation:
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.
white blood cells with long lobed nuclues are called....?
Answer:
polymorphonuclear leukocytes
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 full moon appears white to us on earth because
Answer: when the moon's light (from the sun) is being shone through the atmosphere the blue hues are scattered but the red ones are not.
Explanation:
how much energy moves up from one trophic level to the next in the energy pyramid
Answer: Only about 10% of energy is transferred from one trophic level to the next. Most of the rest of the energy is lost through heat (energy expended, metabolic process, respiration) as it transfers along each level. The reason for this energy loss is found in the second law of thermodynamics which states: that as energy is transferred energy is lost.
Explanation: You're Welcome!
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:
6. A taxi hurries with a constant speed of 84 km/h. How far can it travel in 5 hours?
0.6 km
420 km
300 km
16.8 km
Answer:
420 km
Explanation:
Answer:
420 Km/h
Explanation:
all you have to do is take 84 km/h and multiply it by 5 because that's how many hours it will take
what do you think is meant by the statement, "DNA unites all organisms"
Answer:
Easy. All life on this planet are products of DNA. It is what we all have in common.
Carbon dioxide does not have a big effect on life on Earth because it makes up less than 1% of our atmosphere.
True
False
Answer:
F
Explanation:
Global warming. In the 1900's when cars were on the up-rise, the CO2 in the atmosphere only consisted of about 0.28%, and summers were only about 65 degrees. Now, in direct coloration with the rising CO2 levels, summers are averaged 78 degrees, reaching highs into the 100's.
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.
How can a temporary lake create salt flats in Death Valley?
Answer:
A temporary lake create salt flats in Death Valley when Holocene lakes began to evaporate.
Explanation:
"Each time it has rained since, a new layer has been added. The flat is a vast area covered in salt that was deposited from evaporated water. When the water runs down the mountain, it dissolves minerals that precipitate out as the water evaporates."
Hope this helped!
Have a supercalifragilisticexpialidocious day!
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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If a cell blocked the entrance of a specific molecule, which organelle would perform that function?
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
Label the steps of transcription in order, beginning with step one. Answer choices for all three is: step one, two and three
Free RNA nucleotides pair with the complementary DNA nucleotides on one strand of DNA.
The mRNA molecule breaks away as the DNA strands rejoin.
RNA polymerase unzips the DNA molecule.
Answer:
Its below in the explanation
Explanation:
1.RNA polymerase unzips the DNA molecule.
2.Free RNA nucleotides pair with the complementary DNA nucleotides on one strand of DNA.
3.The mRNA molecule breaks away as the DNA strands rejoin.
Answer:
Here's to make it easier for you guys:
Explanation:
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
Which describes the correct pairing of DNA bases?
A. C with C, and G with G
O B. C with T, and G with A
O c. C with A, and G with T
O D. C with G, and A with T
The correct pairing of DNA bases is D. C with G, and A with T. Thus, option "D" is correct.
What is DNA replication?DNA replication is a process of the formation of two molecules of DNA from a single DNA molecule (which is double-stranded).
In this process, the two DNA strands of the original DNA are first separated so that the template strands are exposed.
Thus, option "D" is correct.
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The correct pairing of DNA bases is C with G, and A with T. Therefore option D is correct.
DNA (deoxyribonucleic acid) is composed of nucleotides, which are made up of a sugar molecule (deoxyribose), a phosphate group, and a nitrogenous base. The four nitrogenous bases found in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T).
In DNA, the bases always pair up in a specific way known as complementary base pairing. The bases adenine (A) and thymine (T) form a pair, and cytosine (C) and guanine (G) form a pair.
This pairing is based on the specific hydrogen bonding interactions between the bases:
Adenine (A) always pairs with thymine (T) through two hydrogen bonds.
Cytosine (C) always pairs with guanine (G) through three hydrogen bonds.
This specific pairing of bases is crucial for DNA replication and the accurate transmission of genetic information during cell division and protein synthesis.
The pairing of DNA bases: (D) C with G, and A with T. This pairing reflects the complementary base pairing rules observed in DNA.
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please help meeee !
Answer: B - Thicker layer of blubber
Explanation: Seals are well adapted to cold polar environments with thick blubber layers that act both as a food reserve and insulation. Most seals also have a layer of fur, giving additional insulation on land.
Hope this helps :)
Which will most likely result from a low-pressure weather system?
B. warm temperatures
D. cloudy conditions
A. clear conditions
C. cool temperatures
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.
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.