Answer:D
Explanation:
Evolution
Individuals pass on adaptations to their offspring, due to natural selection. The correct option is D.
What is Darwin's theory of evolution?The English naturalist Charles Darwin and others developed the Darwinism theory of biological evolution, which contends that all species of organisms arise and develop through the natural selection of minute, inherited variations that improve the individual's capacity for competition, survival, and reproduction.
Darwin claimed that all species share a common origin, that species can change through time, and that new species develop from existing ones.
Charles Darwin, a naturalist of the 19th century, investigated the theory of natural selection.
Natural selection provides an explanation for how a species' genetic features might evolve through time. This could result in speciation, or the creation of a new, separate species.
Thus, the correct option is D.
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Which occurs just before a volcanic eruption?
Lava flows onto the sides of the volcano.
The expanding gases push magma through the pipe.
A pocket of magma forms beneath the volcano.
New rocks are formed as lava hardens.
Answer:
The expanding gases push magma through the pipe.
Explanation:
The activity that happens before the volcanic eruption is the expanding gases pushing magma through the pipe.
What do you mean by Volcanic eruption?A volcanic eruption may be defined as an activity that is responsible for an opening in the earth's crust through which lava, volcanic ash, and gases exit.
Before the volcanic eruption, several gases create an extreme pressure that efficiently pushes the magma through the pipe which leads to the flow of lava onto the sides of the volcano.
Therefore, the correct option for this question is B.
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the process of moisture being released from the leaves of trees and plants into air
Answer: Evaporation
Explanation:
Why aren't human populations evolving to produce immune systems that are able to fight off MRSA and other "superbugs"?
Answer: There are genes that code for different cell receptors that detect foreign substances. And for the immune system to fight these superbugs, the genes encoding these receptors must mutate and evolve. Humans have a slow rate of evolution, slower than bacterial evolution. Then not only human genes mutate at a very slow rate, but insect genes mutate very fast and can improve their strategy to evade the immune system.
Explanation:
A mutation is a random change in the nucleotide sequence or in a gene, which produces a variation in its characteristics and which is not necessarily transmitted to the offspring. They occur spontaneously by the action of mutagens, which are physical, chemical or biological agent that changes the genetic information of an organism and thereby increases the frequency of mutations above the natural level. In multicellular organisms, mutations can only be inherited when they affect the reproductive cells, called gametes (egg and sperm) A consequence of mutations can be, for example, a genetic disease, or it can also be a favorable improvement such as being able to fight against a virus. However, even if in the short term mutations could detrimental, they are essential for our long-term existence becuase without mutations there would be no change, and without change life could not evolve.
The immune system is the body's natural defense against infections, such as bacteria and viruses. The body attacks and destroys invading infectious organisms by the coordinated action of cells and proteins. Any substance or compound produced by an organism is a potential antigen when it is recognized as foreign by the immune system of another organism, whether it is of the same or a different species. In addition, the genes code for different cell receptors that detect these foreign substances. And for the immune system to fight these superbugs, the genes encoding these receptors must mutate and evolve. But, humans have a slow rate of evolution, slower than bacterial evolution. Then not only human genes mutate at a very slow rate, but insect genes mutate very fast and can improve their strategy to evade the immune system. Therefore, the human population may not have mutations that improve the immune system to help it fight againts these superbugs.
Which of the following conclusions can be made from this experiment?
Explanation:
what experiment....??
Which of the following is true?
A. Renewable energy is over 90% of the energy
use in the United States.
B. There is NO renewable energy used in the
United States.
C. Renewable and fossil fuel energy use is about
equal.
D. Renewable energy use counts for less than
10% of the energy use in the United States.
Answer:
Renewable energy is over 90% of the energy use in the united states
in your own words, what is the definition for Plasmalemma?
Answer:
This is a plasmatic membrane (cell membrane) that bounds a cell.
Answer: a very thin membrane, composed of lipids and protein, that surrounds the cytoplasm of a cell and controls the passage of substances into and out of the cell.
Explanation:
Which of the following is an example of a predator adaptation?
a porcupine's quills
a shark's powerful jaws
a plant's poisonous chemicals
a frog's bright colors
What are the inputs and outputs of trees?
Answer:
Inputs: Carbon Dioxide (CO2), Water (H2O), Nutrients/Minerals, Sunlight
Outputs: Oxygen (O2), Sugar, Water Perspiration
What are Cyanobacteria ?
when one gram of liquid at its boiling point is changed into water vapor
Answer:
One gram of liquid water changed into water vapor at its boiling point, energy is required called the heat of vaporization. Water has a heat of vaporization of 40.65 kJ/mol. Hydrogen bonding is present between water molecules so to break this hydrogen bond, heat energy is required.
Explanation:
Answer:
Energy is required called the heat of vaporization.
Explanation:
Water has a heat of vaporization of 40.65 kJ/mol. Hydrogen bonding is present between water molecules so to break this hydrogen bond, heat energy is required.
Your teammate is spinning a tennis ball on a string in a perfect circle. If the radius of the circle is 45 cm and the ball travels half the
circumference of the circle in 15 seconds, what is the velocity of the ball rounded to the nearest whole number?
A
3 m/s
B)
30 cm/s
94 cm/s
D)
212 cm/s
Answer:
94 cm/s
Explanation:
The velocity of an object in circular motion is the distance traveled over time. The distance traveled is the circumference. Half the circumference of a circle with radius r is πr. The velocity is this distance over time, in this case, 1.5 s. The ball’s velocity is therefore
πr
t
=
45π
0.5
≈ 94.2 cm/s
The fact that many of the proteins produced by humans have identical or nearly identical counterparts in chimpanzees suggests
that
A)
all proteins are basically the same.
B)
humans and chimps share a common ancestor.
o
humans and chimps have convergently evolved.
D)
humans and chimps actually belong to the same species.
Answer: B)
humans and chimps share a common ancestor.
Explanation:
(True or False) The replication of DNA requires little to no energy expenditure
Answer:True
Explanation: The process of breaking the hydrogen bonds between the nucleotides of the double helix strand of the DNA requires energy.
How does the human brain receive messages and send signals to the body about what's happening?
Answer:
heres how
Explanation:
Neurons communicate with each other by sending chemical and electrical signals. Each neuron is connected with other neurons across tiny junctions called “synapses.” Impulses rush along tiny fibers, like electrical wires, from one neuron to the next. Electrical impulses travel through neurons.
Which detail in the article BEST supports the
conclusion that the 5G network is more efficient
than other cellular networks?
Answer:c
Explanation:
The illustration shows structures into animals these are known as??? helpp
1. Which of the following elements is the LEAST abundant in living organisms?
a oxygen
b nitrogen
c phosphorous
d sulfur
Answer
Sulfur is the least abundant in living organisms.
sulfur is the LEAST abundant in living organisms among the options.
Living organisms are composed of Chemical elements which constitute the build up organelles, cells, tissues, and organs.
The Chemical elements are divided into:
Essential elements : These essential elements are 11 in number ad also subdivided into the major essential elements which make up about 99% of the human body mass. They include Oxygen, hydrogen, nitrogen, carbon, calcium, and phosphorus. The remaining five (least essential elements) consists of Sulfur, potassium, sodium, chlorine, and magnesium which make up about 0.85% of the remaining mass. Trace elements:.The trace elements comprises of the remaining 0.15% of the human body is comprised of trace elements. Whether they may be essential for life, is still being researched for evidence.Arranging the essential chemical elements according to abundance in living orgasm we have:
Oxygen 65.0% of body massCarbon 18%Hydrogen 10%Nitrogen 3% Calcium 1.4 %Phosphorus 1.1% Potassium 1%SulfurChlorineMagnesiumWe can therefore conclude that from the question Sulfur is the least abundant in living organisms.
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what types of tissues make up the skeletal system
Answer:
The skeletal system is your body's central framework. It consists of bones and connective tissue, including cartilage, tendons, and ligaments. It's also called the musculoskeletal system
Explanation:
MARK AS BRAINLIST!!
Answer: The skeletal system gives the body shape and form and helps to both protect and support the entire organism.
Bone, cartilage, tendons, joints, ligaments and other connective tissues compose the skeletal system.
The two main types of bone tissue are compact (hard and dense) and cancellous (spongy and flexible) tissue.
Explanation:
What is the relationship between mass and solar energy in plants?
Answer:
Plants increase in mass as they convert solar energy to chemical energy
what is photosynthesis
Photosynthesis is a synthesis of compounds with the aid of radiant energy especially in plants.
Radiant energy it transmitted in the form of electronmagnetic radiation; energy that exists in the absence of matter.
Synthesis is the process of producing a chemical compound usually by the union of simpler chemical compounds.
The combination of ideas into a complex whole.
Reasoning from the general to the particular or from cause to effect.
What does "repel" mean?
O Magnets do not have magnetism
O Magnets pel for a second time
Magnets move toward each other
Magnets move away from each other
Answer:
D. Magnets move away from each other
Explanation:
be repulsive or distasteful to.
bug repellent
a repellent attitude
Answer:
magnets move away from each other
A) Which kingdoms include organisms that have a nucleus?
B) Which kingdoms include organisms that can make their own food?
Explanation:
A) Cells of protist organisms do contain a nucleus. This kingdom is made up of species that do not really easily fit into other kingdoms such as the plant, animal, and fungi kingdom.
B
plants are autotrophs, organisms that make their own food. With over 250,000 species, the plant kingdom is the second largest kingdom.
Explanation:
a) protoctists
b) plant kingdom
hope it helps!
WILL GIVE BRAINLIEST - What has happened to the temperatures since the Ice age?
A. Temperatures have decreased
B. Temperatures have slightly increased
C. Temperatures have increased a large amount
D. Temperatures have not changed at all
Answer:
C
Explanation:
Please mark brainliest
Answer:
b
Explanation:
Its called global warming
which enzymes are found in detergents that remove mucus and oil stains from cloth soaked in water ?
Answer:
Most biological laundry detergents contain lipase and protease enzymes, both of which are found in the body. Lipases break down fats and oils, while proteases work to break down protein chains. Their ability to break down these compounds makes them excellent for stain removal.
Why do scientists compare the DNA of bananas, worms, fruit flies, and humans? How can this information be helpful?
Scientists compare the DNA of bananas, worms, humans, etc., by aligning homo-logous sequences, which is useful to discover gene function and infer evolution.
What is sequence homo-logy?The expression sequence homo-logy makes reference to the similarity between nucleotide sequences due to the same evolutionary origin.
In genetics, nucleotide sequences are aligned to infer sequence homo-logy.The sequence homo-logy may result useful to discover gene function and determine evolutionary relationships.In conclusion, scientists compare the DNA of bananas, worms, humans, etc., by aligning homo-logous sequences, which is useful to discover gene function and infer evolution.
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Two balloons are rubbed with fur, which creates an excess of electrons on the balloons. If the balloons are hung from flexible wires from a shared point overhead, what will happen to the balloons?
A.
They will repel one another and the angle between them will be proportional to the charge on each.
B.
They will attract one another and sustain that attraction until the charges have redistributed.
C.
They will swing like a pendulum, with the period based on the magnitude of the transferred charge.
D.
They will join at a single point where the excess charge has collected and then they will repel one another.
The genetic code is the set of instructions that
translates genetic material into proteins. This code
defines how sequences of three nucleotides specify
which amino acid will be added next during protein
synthesis. Each sequence of three nucleotides is called
A. a protein
B. a codon
C. a Mutagen
D. a DNA molecule
Answer:
DNA molecule
Explanation:
Each sequence of three nucleotides is called a codon. Therefore, the correct answer is option B.
Codons are named by the request for their bases. The three stop codons in mRNA are UAA, UAG, and UGA, where U represents uracil, A for adenine, and G for guanine. Stop codons signal the end of protein synthesis. They can be found in DNA or mRNA.
They are three-nucleotide sequences that encode a particular amino acid. During the translation process, the tRNA (transfer RNA) molecules contain anticodons that aid in the transfer of amino acids to the mRNA.
A codon is a sequence of three nucleotides in DNA or RNA, also known as a trinucleotide. It is a unit of genomic information that encodes a specific amino acid or signals the end of protein synthesis (stop signals).
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explain why there is a greater efficiency in supplying plants as human food
Answer:
Does this help?
Explanation:
Plants are very efficient when it comes to supplying for people. Plants not only allow us to breath, but we can also feed off them. We can always grow plants. Planting is also better for the environment. Less people will pay for fruits and vegetables. Even with all the advantages of just supplying plants as human food, it would be almost, if not impossible to feed the entire population all year off salads.
1. The carrying capacity for a population of deer in a forest is 300 individuals.
Which of the following is true?
A population of 300 deer will remain at about 300
A population of 100 deer will remain at about 100
A population of 500 deer will continue to grow exponentially
A population 300 deer will run out of resources and crash
The organisms found in a coral reef habitat include clownfish, seahorses, and sea grass.
2. Which of the following terms best describes these organisms?
community
biome
species
population
3.Which of these is an abiotic factor in a tundra ecosystem?
amount of sunlight
trophic levels
species richness
vegetation
Answer:
1. A population of 300 deer will remain at about 300
2. community
3. amount of sunlight
Explanation:
1. Carrying capacity is defined as the maximum population size of a biological species that can be sustained by that specific environment, given the food, habitat, water, and other resources available. Therefore if a population has reached its carrying capacity, it will most likely remain at that size.
2. A community is defined as all of the populations of different species that live in the same area and interact with one another. Clownfish, seahorses, and sea grass are all different species living in an area together and interacting with each other. This example does not show a population, nor a species, nor biome, since a population is a group of organisms of the same species, and a biome is a distinct biological community that has formed in reponse to a shared physical climate.
3. Abiotic factors are non-living factors which affect an ecosystem.
PLEASE HELP PLEASE PLEASE PLEASE
Answer: B
Explanation: This should be the correct answer(: since hereditary means passing genetical material/information from parent to offspring (one gerneration to another)