Answer:
Biochemistry provides evidence of evolution in terms of modifications in various biological molecules, such as enzymes Explanation:
Answer: Try this Why is biochemical evidence the strongest form of evolutionary evidence
Explanation: It will give you some important information of what you are learning in high school!
differentiate the types of muscle- skeletal, cardiac, smooth
Answer:
Skeletal muscle moves bones and other structures. Cardiac muscle contracts the heart to pump blood. The smooth muscle tissue that forms organs like the stomach and bladder changes shape to facilitate bodily functions.
Explanation:
Answer:
cardiac muscles perform involuntary muscular movements of the heart, aiding the heart to pump blood throughout the body, while skeletal muscles perform voluntary muscular movements of bones, aiding physical movements of the body such as walking, running, and writing and smooth muscles perform an involuntary muscular movements of internal organs, aiding functions of the body such as digestion, urination, and breathing.
Which of the following best explains why few impact craters are found on earth?
A. Impacts on earth do not form craters.
B. Erosion has erased most of the impact craters on earth.
C. Most impacts occurred before earth was formed.
D. Few impacts have occurred on earth.
Answer:
i think it would be C
hope that helps if not i can change it
Explanation:
Algae are small photosynthetic organisms found in aquatic ecosystems. Their cells produce a kind of oil. Scientists learned how to extract the oil to create fuel, which can be used in place of fossil fuels. Scientists think algae can produce 60 times more oil per acre than plants, like corn, that are commonly used to produce biofuel.
To produce algae oil, very large ponds were built for growing algae. However, scientists soon made two discoveries.
As the algae grew, it formed layers at the pond surface. These layers crowded and shaded one another.
Many insects and other consumers frequently entered the ponds.
Based on the two discoveries, what would likely be a problem for algae oil production?
A.
Crowding reduces access to food, so it makes algae less able to take in sugar and produce oil.
B.
Insects feed on algae, so all of the energy stored in algae oil is converted back into light energy.
C.
Consumers feed on algae, so the energy stored in algae oil is permanently lost from the environment.
D.
Shading reduces access to sunlight, so algae produce less sugar and are less able to store energy.
Answer:
C.
Consumers feed on algae, so the energy stored in algae oil is permanently lost from the environment
Plants release scents that attract pollinating insects to them. These adaptations primarily help the plant to _____.
A
find food
B
find water
C
protect themselves
D
reproduce
Answer:
I believe D, because pollen is used for reproduction.
The most abundant bulk elements that make up the vast majority of living organisms are:.
Answer:
Carbon, oxygen, and hydrogen.
Answer:
The answer is oxygen, carbon and hydrogen
Explanation:
.
What is the relationship between a gene and an operon.
Answer:
An operon is a segment of DNA containing a cluster of genes, which are all under the control of a single promoter and the same regulatory elements. The genes in an operon get transcribed together into a single mRNA strand and therefore undergo the same transcriptional regulation.
hope it helps
What are the minimum energies of the two oppositely directed gamma rays in a pet procedure?.
Answer:
0.51 1 MeV
Explanation:
-mec2 is the rest energy of the electron (0.511 MeV)
-Pair production and triplet production are followed by the annihilation of the positron with a ‘free’ electron producing two annihilation quanta, most commonly with an energy of 0.511 MeV each and emitted at 180º from each other to satisfy conservation of energy, momentum and charge.
write down the function of gynoecium
Answer:
The female reproductive organ of angiosperms, the gynoecium, often consists of the fusion of multiple ovule-bearing carpels. It serves the important function of producing and protecting ovules as well as mediating pollination.
Explanation:
Hope it helps(・∀・) Correct me if I'm wrong(๑•﹏•)
PSYCHOLOGY: Personal characteristics such as one’s __________ and __________ are often stable throughout one’s lifetime. A. temperament . . . emotionality B. attitude . . . intelligence C. temperament . . . attitude D. emotionality . . intelligence
Answer: A. temperament . . . emotionality
Answer:
A : temperament . . . emotionality
Explanation:
Which is NOT an example of a transfer payment?
A. welfare
B. salaries
C. Medicare
D. Social Security
Answer:
B. Salaries
Explanation:
Answer:
b
Explanation:
Which process is a characteristic of all living things and is responsible for differences within a population?
growth
fertilization
development
reproduction
Answer:
All living things have certain traits in common: Cellular organization, the ability to reproduce, growth & development, energy use, homeostasis, response to their environment, and the ability to adapt. Living things will exhibit all of these traits.
Explanation:
All living organisms (whether they are bacteria, archaea or eukaryote) share several key characteristics, properties or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation (including homeostasis), energy processing, and evolution with adaptation.
is the following sentence true or false? Changes in chromatin structure and histone DNA binding are associated with changes in gene activity.
Answer: The correted answer is true
Explanation:
Changes in chromatin structure and histone DNA binding are associated with changes in gene activity. True)
How do the kidneys compensate for acid-base imbalances?.
Kidneys compensate for acid-base imbalances by : Reabsorbing HCO₃ from urine back to the blood and also secreting H⁺ back to the urine.
Acid-base ImbalanceWhen the amount of acid or base produced in the human body is greater than or less than the required amount of acid or base, and the rate of excretion by the kidneys is above or below normal, the body will experience an Acid-base imbalance situation.
To correct acid-base imbalance in the body the kidney will reabsorb HCO₃ form the urine and while secreting Hydrogen ions back to the urine.
Hence we can conclude that Kidneys compensate for acid-base imbalances by : Reabsorbing HCO₃ from urine back to the blood and also secreting H⁺ back to the urine.
Learn more about Acid-base imbalance : https://brainly.com/question/7207561
Explain the places occupied by grass, a rabbit, and a wolf in an energy pyramid.
Answer:
Grass is on the bottom of the energy pyramid because it needs the least amount of energy. A rabbit is in the primary consumers level, and a wolf is a secondary level consumer.
Explanation:
Which is not included in the atmospheric conditions?
A. wind
B.Humidity
C. Potential energy
D. Temperature
Answer:
I believe the answer is C. Potenial energy
Explanation:
Earths magnetosphere is not part of it and that potential energy.
Please help me
Mendelian Genetics - Punnett Square
In humans, curly hair is dominant over straight hair. A woman heterozygous for
hair curl marries a man with straight hair and they have four children. Predict
their childrens" genotype and phenotype.
Answer: Look at the image bellow because I couldn't add an answer due to a glitch. Hope this helps!
why do we need water and food
Answer:
To help regulate temperature and maintain other bodily functions
Explanation:
does that help
A hormone that promotes gluconeogenesis in the liver is:.
Answer:
Glucocorticoids
Explanation:
A hormone that promotes gluconeogenesis in the liver is glucagon.
EXTRA:
Meanwhile, insulin promotes the uptake of glucose into cells to reduce the level of glucose in the blood.
These two hormones work together two regulate your blood sugar
Hope this helps!
based on data from 2013 the majority of landfill waste cones from
MSW continues to be dominated by organic materials such as paper and paperboard, yard wastes, and food. Paper and paperboard make up 27%, while yard trimmings and food make up another 28.1 percent.
The nervous system has two main divisions, which include the central nervous system and the _____ nervous system.
Answer:
peripheral
Explanation:
what is system. mention one system of human body
Answer:
A system is the combination of different kinds of organs for functioning or performing special tasks in our body. For Example : Skeletal System.
Blood has traveled from the heart to the toes. Which describes the next step
of the circulation process?
• A. The blood releases carbon dioxide on the way back to the heart.
•
B. The blood goes through the liver to be cleaned.
O C. The blood travels back to the heart in a vein.
• D. The blood travels to the lungs to get oxygen.
7. Discuss the practical and theoretical differences between an interval training program used to improve the ATP-PC system and a program designed to improve the ATP production via glycolysis.
The ATP-phosphocreatine (PC) system is more suitable in conditions of high energy expenditure, whereas glycolysis is a step during cellular respiration.
What is cellular respiration?Cellular respiration is a chemical process by which aerobic cells generate energy in the form of ATP by using foods as a source of energy in presence of oxygen.
During cellular respiration, glycolysis (glycolytic pathway) is the first step for ATP production.
The ATP-PC system is anaerobic, works in hypoxia conditions (oxygen absence), and is faster to provide energy than cellular respiration.
However, the ATP-PC system is energetically less efficient than cellular respiration in terms of the number of ATP molecules produced per unit of glucose.
Learn more about cellular respiration here:
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HELP ME PLEASE!!!! ILL MARK YOU BRAINLEST
how is rising sea levels important?
Answer:
Rising sea levels greatly affect the environment negatively. Flooding or erosion of deltas are all disastrous. It is important to be aware of the effects of rising sea levels to find a way to prevent the continued rise.
Explanation:
Why do so some birds addict to smoke?
Nicotine is absorbed easily through the skin and feathers of birds. The smoke emitted from cigarettes will release nicotine into the air and that nicotine will settle on surfaces. These surfaces include your bird’s cage, bowls, toys and the bird itself. When a bird has nicotine land on their skin from secondhand smoke they will many times pick at their feathers or bite at their feet. Some will bite at themselves to the point that they create open wounds.
Respiratory infections and lung cancers are also a concern for birds kept in an environment where secondhand smoke is prevalent. Pneumonia is a very serious condition in domesticated birds and can lead to death.
hope it helps...!!!
which substance is a nuclei acid
Answer:
Nucleic acids are polynucleotides
Explanation:
Hope this helps
Answer:
Nucleic acids, which include DNA (deoxyribonucleic acid) and RNA (ribonucleic acid)
Explanation:
Nucleic acid are made from monomers known as nucleotides. Each nucleotide has three components: a 5-carbon sugar, a phosphate group, and a nitrogenous base. If the sugar is deoxyribose, the polymer is DNA
Is the "Kingdom" level more specific or less specific then the "Domain" level?
Answer:
It is less specific. I know it can be hard to memorize all of the taxa but I just try to use a mnemonic (which I included below)
Explanation:
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
*Remember that in order to give an animal a scientific name we use the genus and species. Scientific names are always italicized and the Genus will be capitalized while the species is lowercase. The genus comes first.
Here is a mnemonic to help memorize the 7 taxa (Taxa is just the fancy word for each group in our classification system) Daring Kings Play Cards On Funny Green Stools.
Tip: The top of the category is the broadest and the further down you go, the more specific your categories get.
I hope this helps! ;)Answer:
Yes. Less specific. Kingdoms are slightly more specific than Domains. Remember that living things are always divided into 5 kingdoms.
AnimalsPlantsFungiProtistMoneraAn easier way to remember this mnemonic sentence, Any popcorn for perfect movies? Try writing it down with the meaning behind it! It will help you a lot. And remember the levels of classification:
DomainKingdomPhylumClassOrderFamilyGenusSpeciesThe higher the list is, the less specific, the lower, the more specific. You may want to write down this mnemonic sentence as well, to help you remember the levels of classification; Did king Philip come over for grape soda?
What is a trophic level?
A. the amount of energy that an organism uses to survive in an ecosystem
B. all of the nonliving things in an ecosystem
C. a model used to show the types of organisms in an ecosystem
D. a living organism's position in the flow of energy through an ecosystem
Answer:
D. A living organisms position in the flow of energy through an ecosystem.
Explanation:
Its like each step up in the food web/pyramid.
Trophic level is a living organism's position in the flow of energy through an ecosystem. The correct option is D.
A biological organism's place or function in the movement of energy through an ecosystem is referred to as its trophic level. It symbolises the ecological community's hierarchy of feeding.
A trophic level's inhabitants have comparable feeding habits and occupy a certain place in the food chain.
The first trophic level is occupied by the primary producers, including plants and algae, which use photosynthesis to transform sunlight into energy.
The second trophic level is occupied by herbivores that consume producers directly, followed by primary carnivores (predators that consume herbivores) on the third level, and so forth.
A complex network of energy flow and nutrient cycling occurs within an ecosystem at each trophic level as creatures consume and are consumed by one another.
Thus, the correct option is D.
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Why does the land on earth appear to be stable when in fact it is changing?
True or False: A trait is only considered an adaptation if it is beneficial to the organisms current environment
Answer:
this statement is false:
Explanation:
natural selection is a process im which organism evolve to become better adapted to their environment
