Answer is:
Coarse sand - C
Answer:
Loamy Soils
Explanation:
Loamy soil is "made of small, light, and nutrient rich soil particles."
Creating new things to solve problems and improve life depends on the close interaction of which two fields?
A.science and technology
B.engineering and geology
C.conservation and research
D.medicine and surgery
Answer: A.science and technology
Explanation:
Science and technology is the correct option. Science include the knowledge of the natural processes and events that occur in the universe. It includes the predictions and explanations for the cause of natural processes. The technology include the collection or group of techniques and methods can be used for the synthesis of goods and services. The technology can be used for the accomplishment of objectives and for the purpose of scientific investigations.
The knowledge of science can be used and implemented to develop the technology. The technology can be used for the synthesis of new things and solving the problems associated with the daily life.
Where do electrons get their energy in photosystem I?
A. From NAD and NADPH
B. From energy in photons
C. From ADP and ATP
D. From glucose in the Calvin cycle
When chlorophyll or carotenoid molecules absorb light and enter a photoexcited state, electrons in Photosystem I acquire energy, hence option b is correct.
What is the light reaction?Through an electron transport chain, the excited chlorophyll electrons are moved from photosystem II's electron acceptors to photosystem I.
Two photosystems—Photosystem II and Photosystem I—are present in photosynthetic eukaryotes and cyanobacteria.
An electron is excited and lost from a PSII reaction center in chlorophyll as a result of light energy (P680).
Therefore, Photosystem I uses light energy to move electrons from ferredoxin on the stromal side of the thylakoid membrane to plastocyanin on the lumenal side of the membrane, hence option b is correct.
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Where do the respiratory and circulatory systems meet?
A. In the heart
B. In the muscles
C. In the lungs
D. In the brain
Answer:
Option C. The lungs.
Explanation:
Alveolis are the air sacs in the lungs which main function is to get oxygen into your bloodstream and carbon dioxide leaves the blood.
The alveolis are located in the lungs, and it's where the respiratory and circulatory systems meet, for the reasons stated before.
Therefore, the correct option is Option C.
Identify the structures of the female reproductive system using the drop-down menus. This structure is also called the birth canal. The eggs develop and are released by the ; this is also the site of estrogen and progesterone production. If an egg is fertilized, it will implant and grow on the lining of the
Answer:
Vagina
Ovary (Pl. Ovaries)
Uterus
Explanation:
The vagina is also called the birth canal. It is a hollow, muscular tube attached at the lower end of the uterus and opens to the outside. It is called the birth canal because this is where the baby passes from the uterus to the outside world.
Ovaries are oval-shaped organs where egg cells are developed. They are located at the sides of the uterus, attached to the fallopian tubes. It is also the site of estrogen production which is also known as the female sex hormone.
Uterus is also known as the womb. This is a pear-shaped organ where the fetus will grow if an egg cell is successfully fertilized by the sperm cell. The main body of the uterus called the corpus and it is expandable, which makes it capable to hold a growing fetus.
How do producers create energy for survival?
A. through photosynthesis
B. through decomposition
C. by eating animals
D. by eating plants
*A*
Common unused materials like water, carbon dioxide, and other minerals is used to make sugar through photosynthesis. They obtain the energy through the sugars.
Through photosynthesis create energy for survival.
How do energy producers make enough to survive?The process by which plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis.
What are the types of photosynthesis?There are two types of photosynthetic processes:
Oxygenic photosynthesis.Anoxygenic photosynthesis.To know more about photosynthesis :
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A magnifying glass is an example of whikh type of microscope?
electron microscope
scanning microscope
compound light microscope
simple microscope
Mark this and return
Answer:
C) Compound Light Microscope
how can mutation in a gene lead to a new trait in an organism ?
Answer: D. The mutated gene codes for a protein that causes a new trait
Explanation:
A mutation is a change in the DNA sequence that can occur from multiple causes. For example, by errors during replication or by the action of mutagens such as UV radiation, among others. When a mutation occurs, if not repaired, it can lead to the production of a different protein. This is because genes code for amino acids, which bonded together form proteins. A change in a DNA gene base can lead to code for a different amino acid (or even adding a new one or causing another to be lost). This alteration can lead to the synthesis of another protein involved in the expression of a trait, and giving rise to a different characteristic, which can be beneficial or harmful.
The four main spheres of the exterior of Earth are the _____. atmosphere, cryosphere, hydrosphere, and lithosphere anthrosphere, atmosphere, cryosphere, and biosphere atmosphere, lithosphere, biosphere, and hydrosphere atmosphere, lithosphere, biosphere, and gemosphere
Answer: lithosphere (land), hydrosphere (water), biosphere (living things), and atmosphere (air).
Explanation: Hope this helps!!!
The correct answer is C. Atmosphere, lithosphere, biosphere, and hydrosphere.
Explanation
Earth is a planet that belongs to the solar system. The earth is composed of several elements that constantly interact forming a system, that is to say, it is composed of interrelated and dependent parts, so if one of the parts changes, the others are modified, altering the entire system. The main parts of the Earth are its subsystems that are the lithosphere, the atmosphere, and the hydrosphere. These subsystems fulfill specific functions that allow the development of life on Earth. These subsystems are related. Each system has a particular function, the atmosphere contains oxygen and carbon dioxide; the hydrosphere contains all forms of water on earth, and the lithosphere is made up of mineral salts and support for living things. At the same time, these three subsystems allow the existence of the biosphere, that is, the subsystem referring to all forms of life on Earth. So, the correct answer is C. Atmosphere, lithosphere, biosphere, and hydrosphere.
Carl Linnaeus developed a two-word system for naming organisms. It is called .
Answer:
Binomial Nomenclature
Explanation:
Carl Linnaeus developed a two-word system for naming organisms. It is called Binomial Nomenclature.
Answer:
Carl Linnaeus developed a two-word system for naming organisms. It is called .
The scientific name for polar bears is Ursus maritimus.
Ursus is the
and maritimus is
the
.
Explanation:
Explain why autonomous underwater explorers (AUE) will provide entirely new kinds of information about ocean processes
Answer:
Oceanographers are already very skilled at gathering information about large-scale ocean processes, but small-scale processes have largely been inaccessible. ... They allow the deep ocean to be explored.
Answer:
Explain why autonomous underwater explorers (AUEs) will provide entirely new kinds of information about ocean processes.
The AUEs will allow scientists to gather information about local and small-scale processes for the first time to study ocean phenomena in greater detail.
Explanation:
Ocean Exploration
Edge 2020
electron movement around the nucleus of an atom is analogous to the way
Answer:
yes
Explanation:
extension of proton to electrons
Answer:
yes
Explanation:
Protons and neutrons make up the nucleus in the center of the atom. “Early on, we thought that electrons were revolving around the nucleus like planets,” Cooley said. If you add energy, electrons can move to a higher orbital level and then back again when the energy returns to normal.
5 Points
What is term for the process of gathering information through images taken
at a distance?
O
A. Global positioning
O
B. Topography
O
C. Remote sensing
O
D. Cartography
SUBMIT
Proteins, which are compounds made of nitrogen-rich amino acids, create waste products in the body of animals that must be eliminated. Which toxic compound is the primary concern of animal waste systems?
A. Urea
B. Ammonia
C. Ammonium
D. Nitrogen
Answer:
Ammonia is the most toxic waste. Urea is the least
What is hemoglobin in the blood?
Answer:
Hemoglobin is a protein contained in the red blood cells which transports oxygen to the tissues and body organs and carries carbon dioxide from the body organs and tissues back to the lungs.
Explanation:
Hemoglobin is a protein contained in the red blood cells which transports oxygen to the tissues and body organs and carries carbon dioxide from the body organs and tissues back to the lungs.
Which describes a gene bank?
a place where endangered species are undisturbed by humans
an institution that provides funding for genetic research of endangered species
a secure place where seeds, plants, and genetic material are stored
the part of the cell that stores a blueprint for an organism's traits
Answer: The Answer is Option 3 (A secure place where seeds, plants, and genetic material are stored.)
Explanation:
They made Gene bank's In an effort to conserve agricultural biodiversity, also gene banks are used to store and conserve the plant genetic resources of major crop plants and their crop wild relatives, Also for animals, this is the freezing of sperm and eggs in zoological freezers until further need. So after that information its clear to Choose the answer (C)
Consider the following hypothesis:
Soil type affects the germination of radish seeds.
Which of these should the experiment do in order to best test this hypothesis?
A.
Measure the rate at which radish plants grow after their seeds germinate
B.
Measure the average depth at which germinating radish seeds were planted
C.
Compare the percentages of radish seeds that germinate in different types of soil
D.
Compare the average numbers of radish seeds that germinate in different states
Answer:
C
Explanation:
You are testing the affects of different soils on the germination of seeds, therefore, you must compare different types of soil. The other answers don't have correlation to different types of soils, and are incorrect.
Answer: C. Compare the percentages of radish seeds that germinate in different types of soil
Explanation:
The hypothesis you are trying to prove is that the soil type affects the germination of radish seeds, to do this you would need to compare the germination rates of radish seeds in different soil types to see if there is an actual difference on the germination rates of the seed.
Which of the following would be considered a source of error in an Experiment
Answer:
only three house flies were collected for an experiment
Explanation:
i just did it :)
Hibernation enables an animal to save _____. range energy time space
Answer:
Energy
Explanation:
Hibernation allows an animal to save energy during a time in which there is not a large food source.
This generally occurs to carnivorous as well as omnivores in which their prey is "dead" during the time, or have migrated.
An example of an animal that hibernates during the winter is the Grizzly Bear, who generally eats to full before they hibernate for the winter.
~
Answer:
energy
Explanation:
A dam is built that changes water flow nearby. The water flowing through a marsh completely stops. What is the most likely effect of this change?
A. The marsh will become less productive.
B. The marsh will have more oxygen.
C. The marsh will grow more plants.
D. The marsh will have more photosynthesis.
Answer:
A: The marsh will become less productive
Explanation:
Option A is the correct answer because, if the water flow changes to the point where no water is able to enter a certain area, most plant life will die out.
There are a few plants that can survive with very little water, but not enough to sustain a whole ecosystem.
The marsh will not have more oxygen, because underwater plants acquire oxygen through the water surrounding it (oxygen diffuses into the water).
The marsh will not grow more plants, because water is the key factor needed in order for plants to grow, and due to no plants being able to sustain themselves, the rate of photosynthesis will also decrease.
In humans, freckles (F) on the skin are dominant to no freckles (f). If two parents are heterozygous for the trait, which statement below best describes their chances of having a child with no freckles?
a
It would be extremely rare for the freckled parents to have a child without freckles because freckles are dominant.
b
The parents will most likely have three children with freckles before having a child without freckles.
c
Every time they reproduce, the parents have a one in four chance of having a child without freckles.
d
If the parents already have three children with freckles, then they are more likely to have a child without freckles.
Answer:
It might be C but sorry if I'm wrong
Two heterozygous parents for the dominant freckle trait (Ff) have a one in four chance of having a child with no freckles (ff) using a Punnett square to determine the probabilities.
Explanation:When considering whether two heterozygous parents can have a child with no freckles, we utilize a Punnett square to determine the possible genetic outcomes. Since freckles (F) are dominant over no freckles (f), a heterozygous individual will have one of each allele (Ff). When these parents have children, each parent has a 50% chance of passing on either the F or f allele.
Using a Punnett square to illustrate this, we would see that there are four possible genetic combinations for their child:
FF - Child with frecklesFf - Child with freckles (heterozygous like the parents)fF - Child with freckles (heterozygous like the parents)ff - Child with no frecklesThus, the correct answer is that every time they reproduce, the parents have a one in four chance of having a child without freckles (option c). This is because the chance for each genotype (FF, Ff, fF, or ff) is equal when both parents are heterozygous (Ff).
Illegal fishing is thought to account for what percent of fish caught?
A. 10-20
B. 15-40
C. 20-50
D. 50-70
Thank you!
Illegal fishing accounts for a substantial portion of global fish catches, likely falling within the range of 15-40% based on studies and reports on under-reporting and the proportion of illegally caught seafood entering the United States.
Illegal fishing is a significant problem that affects marine ecosystems and economies around the world. According to research, the percentage of fish caught through illegal, unreported, and undocumented (IUU) fishing is substantial, contributing to over-exploitation and depletion of fish stocks. Considering the report by Agnew et al. in 2009 and the data on the under-reporting of global marine fish catches, it is reasonable to deduce that the percentage of fish caught through illegal means could be on the higher end of the provided options.
Additionally, taking into account that 25-30% of wild-caught seafood imported into the United States is illegally caught, as stated by Pramod et al. in 2014, and the significant under-reporting by as much as 50%, the range of illegal catch is likely considerable. Hence, the answer to the question of what percent of fish caught are due to illegal fishing is option B. 15-40%.
How did Alexander Fleming’s research solve a societal problem?
He developed ways to treat inherited diseases.
He advocated for regular hand washing to kill germs.
He discovered a new type of medicine that could treat infections.
He discovered the cause of mad cow disease, an emerging disease.
Answer:
The correct answer is the third statement.
Explanation:
Alexander Fleming was a Scottish biologist, pharmacologist, and botanist. He discovered Penicillin by accident in 1928. While performing research for determining the characteristics of staphylococci, he stacked all the research jars containing staphylococci in the corner of his lab and went to enjoy the holiday with his family.
After coming back, he witnessed that some of the jars had fungus surrounding them and the majority of staphylococci got eradicated. This marked the discovery of penicillin. It was a novel kind of medicine, which exhibited a tendency to treat infections. Thus, it can be concluded that he discovered a novel kind of medicine, which could treat infections.
Answer:
C
Explanation:
Which of the following occurs as proteins form?
A. Chains of DNA codons and RNA anti codons form.
B. Specific codons pair with specific anti codons.
C. DNA strands form a backbone of sugar rings and phosphate groups.
D. Peptides bond to nucleic acid molecules.
Answer:
B. Specific codons pair with specific anti codons.
Explanation:
The nucleotide sequence of mRNA serves as a template for protein synthesis. During the process of protein synthesis, the mRNA nucleotide sequence is read in the form of triplet codons. The tRNA with the complementary anticodon sequence joins the mRNA.
There is base pairing between codon of mRNA and its complementary anticodon of tRNA followed by the formation of a peptide bond between existing amino acid on the ribosome and incoming amino acid carried by tRNA.
which will form an ionic bond?
A. A positive ion and a negative ion
B. Two positive ions
c. Any two atoms
D. Two carbon atoms
NEN
Answer:
A. A positive ion and a negative ion
What would most likely happen if green plants were exposed to longer days of sunlight?
A. The mitochondria would produce less energy .
B. The chloroplasts would produce more energy.
C. The cell wall would become thicker.
D. The vacuoles would quickly shrink.
Answer: B. The chloroplasts would produce more energy.
Which statement accurately describes reproduction in animals
All animals can reproduce asexually, and some can reproduce sexually
All animals can reproduce sexually, and some can reproduce asexually
Animals only reproduce sexually
Animals only reproduce asexually.
Answer:
B
Explanation:
it just is trusttttttt
Animals can use both sexual as well asexual means for their reproduction. Some animals reproduce asexually through budding while others can reproduce through both sexual as well as asexual modes. Higher animals reproduce through the sexual mode of reproduction. So the correct answer is Option B.
Which animals reproduce asexually?Oligochaetes, planarians, sea stars, starfish, sharks, Crayfish, wasps, snakes like pythons, etc. are some of the animals that reproduce asexually. In the asexual mode of reproduction fusion of gametes does not occur and there is no change in the number of chromosomes of an individual. The same set of genes is passed on from the parent to the offspring and the newly formed offspring is an identical copy of its parent.
Some animals show an alteration between the sexual and asexual modes of reproduction. This is known as heterogamy. Examples of heterogamy include insects and rotifer.
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A brown coat is recessive in Labradors, while a black coat is dominant. If two hybrids are bred, what percentage of the offspring will have black coats?
A. 25%
B. 50%
C. 75%
D. 100%
When the landmasses of the British Isles and Scandinavia are fitted together, mountain chains and rock types _____. form a nearly continuous belt do not line up match only in elevation show differing structure and ages
Answer:
form a nearly continuous belt
Explanation:
When the landmasses of the British Isles and Scandinavia are fitted together, mountain chains and rock types form a nearly continuous belt.
Answer:
form a nearly continuous belt
Explanation:
a substance that influences the reaction but does not participate in thereaction is a
Answer:
Catalyst
Explanation:
Catalyst is a substance that influences the reaction but does not participate in the reaction.
Which nutrient tends to cycle within a single ecosystem?
Answer:
Phosphorous
Explanation:
Phosphorous an essential nutrient in the ecosystem.
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