Answer: Habitat destruction is a major cause for biodiversity loss. Habitat loss is caused by deforestation, overpopulation, pollution and global warming. Species which are physically large and those living in forests or oceans are more affected by habitat reduction.
Explanation:
The diverse life forms living mutually in a region is called biodiversity. It comprises flora, fauna, microbes, fungi and many others.
The major cause for biodiversity loss today is Habitat destruction.
Due to the large cutting down of trees, overgrazing of fields, contamination and global warming the natural environment of flora and fauna are disturbed.Due to human interventions many animals have lost their territories and are on edge of extinction.Humans have cleared large forest regions to set up industries and construction units causing deforestation.Over exploitation of sources has led to the deficiency of reservoirs like petrol and diesel.Therefore, habitat invasion is one of the greatest cause for biodiversity loss.
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the principle that mass is never lost in physical and chemical changes is known as the law of___________
Which property would have the greatest percentage of runoff?
A. 75% of the area is vegetation and 25% is roofed or paved
B. 25% of the area is vegetation and 75% is roofed or paved
C. 50% of the area is vegetation and 50% is roofed or paved
D. All of the above will have the same runoff
Answer: The correct option is B. 25% of the area is vegetation and 75% is roofed or paved.
Vegetation can cause precipitation and reduce runoff. Leaves and stems are used in capturing rain and prevents the rainwater to reach the ground. Dense vegetation with higher surface area under vegetation absorbs water and prevents runoff. Pavements or roofs cause the runoff water by filling the waterways as there is no vegetation for water absorption which leads to overfilled waterways and in turn cause flooding.
why doesn't asexual reproduction result in variation among offspring and parents?
There is no mating or mixing of genetics in asexual reproduction. Asexual reproduction results in a clone of the parent; the offspring has identical DNA as the parent. There is usually no variation from generation to generation in a species population that relies on asexual reproduction.
One way for an asexually reproducing species to get some diversity is through mutations at the DNA level. If there is a mistake in mitosis or the copying of the DNA, then that mistake will be passed down to the offspring, thereby possibly changing its traits. Some mutations do not change the phenotype, however, so not all mutations in asexual reproduction result in variations in the offspring.
Which statement best describes the distribution of Earth's natural resources? A.Resources are evenly distributed across the planet. B.Most resources are typically used only where they are found. C.All people and cultures have access to the same resources. D.Many types of resources are unevenly distributed across the world.
The answer is D. Many types of resources are unevenly distributed across the world or Some resources are plentiful only in a few areas.
both for apex just depends on which answer choices you are given
i took the test so i hope it helps
Answer: D. Many types of resources are unevenly distributed across the world.
Natural resources are those material or entity obtain from natural environment sources. Based on their origin resources can be classified into: Abiotic Resources (non- living resources like water, soil etc) and Biotic Resources (living resources like plants, animal, humans etc). Resources can be classified on the basis of their availability: renewable and non-renewable resources. Renewable resources are those which can be replenished and reproduced relatively quickly. For example, agricultural crop. Non-renewable resources are those which are produced after millions of years and they cannot be reproduced and replenished quickly. For example, fossil fuels. Resources can be classified on the basis of their distribution: Ubiquitous resources (these are abundantly present in the world example air, water, light) and Localized resources (these are only found in certain parts of the world example coal, copper, iron ore etc). Therefore, resources are found unevenly distributed across the world.
What happens in meiosis during the telophase ||
A. The mitotic spindle forms.
B. A total of four daughter cells form.
C. Two diploid cells at produced.
D. DNA doubles to produce sister chromatids.
Answer:
B-A total of four daughter cells form
The use of DDT as a pesticide is an example of how new technology can have favorable and dangerous long-term outcomes. How does this relate to the use of DNA technology
Sickle cell anemia is known to run in a family.
What best describes offspring 4?
A) female carrier of the disease
B) female having the disease
C) male carrier of the disease
D) male having the disease
From the given pedigree analysis, the offspring 4 depicts male having the disease. Thus, the correct option is D.
What is pedigree analysis?Pedigree analysis is a figurative description of the inheritance of a particular gene in a family from parents to their offspring in a scientific manner. It is a family tree and shows the genotype of the individuals for that trait.
Symbols used in the pedigree chart:
1. Circle - for depicting female
2. Square - for depicting male
3. Unshaded shape - for unaffected individuals
4. Fully shaded shape - for affected individuals, those having the disease
5. Half-shaded shape - for heterozygous individuals, those who are carriers of the trait
From the given diagram, it is observed that both the parents are heterozygous dominant, meaning they are carriers of sickle cell anaemia. As a result, the trait for the disease has been transmitted to the offspring.
Out of the 4 offspring, the first is unaffected and does not have the allele for the disease, offspring 2 and 3 are carriers and offspring 4 is affected with the disease as he is homozygous recessive for the trait.
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describe how the relative age of a rock layer is different from the actual age of the rock layer
A fertilized egg must embed in which one of the following organs for pregnancy to occur?
a negative impact of damming a river is that this can ____
A,)generate electricity
B,)divert water for farmland
C,)provide recreational opportunities
D,)change the conditions for life downstream
Answer: D
Because: If a river is dammed then there is little to no flow going downstream. This will effect the life downstream and also change its conditions.
describe the characteristics that fishes have allow them to live and reproduce in water
Fish have adapted to their environment through the evolution of gills, swim bladders and fins. Gills allow fish to absorb oxygen from the water, swim bladders allow fish to maintain an appropriate level of buoyancy and fins allow the fish to move through the water. Different species exhibit specializations of these features to thrive in their own way.
Most fish have swim bladders that are permanently sealed, but other fish have swim bladders that can hold varying amounts of air. Salmon have open swim bladders, and they must gulp air at the surface to keep them full. Some fish, such as sharks, lack swim bladders entirely. This causes them to sink if they do not maintain forward motion.
Fish have fins that are adapted to their lifestyle. Some have evolved into long, barbed structures, suitable for defense. Other fish have fins suited for achieving great speed or for walking along the bottom of the ocean.
Therefore, Fish breathe by drawing water in their mouths and forcing it out of the body via a number of gill slits.
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How the extensive regenerative power of planaria and starfish may be used as a mean of asexual reproduction
Which marine ecosystem has the fewest available nutrients and the lowest productivity? A) estuaries B) open ocean C) coral reefs D) continental shelf
Answer:
B) open ocean
Explanation:
The open ocean ecosystems have the least available nutrients and lowest productivity. The limiting factors in an marine habitat are light and nutrients. Coastal ecosystems, estuaries and coral reefs have much higher nutrient availability and high productivity because plants are in shallow water and receive plenty of sunlight.
water droplets forming on the inside of a cold windshield is an example of
The forming of water droplets on the inside of a cold windshield is an example of condensation. This process happens when warm, moist air comes into contact with a cold surface and the water vapor in the air transforms into liquid water droplets.
Explanation:Water droplets forming on the inside of a cold windshield is an example of the physical process of condensation. This occurs when water vapor present in the air comes into contact with a surface that is colder than the air's dew point temperature. The warm, moist air inside the vehicle is cooled when it contacts the cold windshield, causing the water vapor in the air to transform into liquid droplets.
As another example, condensation can be seen when a glass filled with a cold beverage gets covered with water droplets. The cold glass cools the surrounding air, and if the cooled air can no longer hold all of its vapor as a gas, the excess turns into visible droplets of water on the outside of the glass. In essence, condensation is the process by which water vapor in the air is cooled enough to form liquid water.
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Chains of nucleic acids have directionality and are read in a certain way just like languages are read from "left to right" or "right to left."
DNA is always read in the_______direction, 3' to 5' or 5' to 3'
whereas RNA is read in the_______direction, 3' to 5' or 5' to 3'
Ans.
During DNA replication, DNA polymerase synthesizes new daughter strand in 5' to 3' direction as it can add new nucleotide molecules at 3'-OH group of growing strand only. During transcription, RNA polymerase also synthesizes RNA molecules in 5' to 3' direction. Thus, the template DNA is always read by DNA polymerase or RNA polymerase in 3' to 5' direction.
During translation, a long polypeptide chain is made by reading information from mRNA molecule. The RNA molecule during protein synthesis is always read in 5' to 3' direction, from start codon to stop codon.
Thus, the correct answer to fill in first blank is 3' to 5' and in second blank is 5' to 3'.
a roasted chicken multigrain sandwich contains 42 grams of protein 7 grams of fat in 34 grams of carbohydrates how much energy does the sandwich provide
Answer: 367 calories.
Explanation:
Carbohydrates and proteins provide 4 calories energy per gram of carbohydrate or protein.
Fats provide 9 calories energy per gram of fat.
So, 34 grams of carbohydrate will provide 34 x 4= 136 calories.
42 grams of protein will provide 42 x 4 = 168 calories.
7 grams of fat will provide 7 x 9 = 63 calories
Total energy will be 136+ 168+ 63 = 367 calories of energy.
The sandwich will provide 367 calories of energy.
which of the following is not involved in controlling buoyancy in fishes
Buoyancy in fishes is regulated by the swim bladder, not by gills which are used for breathing and are not involved in controlling buoyancy.
The student asked which of the following is not involved in controlling buoyancy in fishes. Buoyancy control in bony fishes is primarily handled by a specialized structure called the swim bladder, a gas-filled organ that allows the fish to maintain its position at different water depths without expending energy swimming. The swim bladder functions by varying the amount of gas it contains, which alters the fish's buoyancy. Additionally, gills are used for breathing by drawing water over them, which are covered by a muscular flap known as the operculum. Thus, gills, while crucial for gas exchange, are not directly involved in controlling buoyancy.
According to the Precambrian rock record, much of Earth’s first free oxygen combined with
Iron
According to the Precambrian rock record, much of Earth’s first free oxygen combined with iron.
Explanation;Oxygen originated from tiny organisms known as cyanobacteria or blue-green algae. These organisms conducted photosynthesis using sunlight, water and carbon dioxide to produce simple sugars and oxygen.Initially, the oxygen produced, quickly combined with elements in Earth's crust, primarily Iron removing oxygen from the atmospheres. After the supply of oxidizable surfaces ran out, oxygen began to accumulate in the atmosphere and the modern high-oxygen rich atmosphere would have developed.asexual reproduction can be an advantage to bacteria if it enables them to
What is the gradual sequential regrowth of a community of species after a forest fire ?
if meiosis did not occur during the formation of gametes, sexual reproduction would result in
Answer:
the chromosome number would double with every generation.
Explanation:
The formation of haploid gametes occurs through a process of cell division called meiosis, which occurs in two consecutive stages called meiosis I and meiosis II.
Meiosis I is also called the reductive phase (R!), Because a diploid cell (2n) will give rise to two haploid cells (n).
In meiosis II, the two haploid cells (n) formed during the first stage (meiosis I) continue the division, giving rise, each one, to two more haploid cells (n) which will, at the end of the 2 stages, a total of four haploid cells (n). Meiosis II is called equational division (E!), Because dividing cells form daughter cells with the same number of chromosomes.
In short, if meiosis did not occur during gamete formation, there would be no reduction in chromosomes, the result of which would be that the number of chromosomes would double with each generation.
Without meiosis, sexual reproduction would produce offspring with a doubled chromosomal content every generation and lead to potentially harmful mutations and reduced genetic diversity. Meiosis ensures each gamete carries the correct number of chromosomes and enhances genetic diversity, vital for species' adaptability.
Explanation:If meiosis did not occur during the formation of gametes, sexual reproduction would result in offspring with a doubling of genetic content over generations, potentially detrimental mutations, and reduced genetic diversity. This is because, during sexual reproduction, each parent contributes one set of chromosomes to their offspring. Meiosis plays a crucial role in halving the chromosomal number, ensuring that each gamete carries the correct number of chromosomes. Therefore, it is essential for maintaining the stability of species.
Without meiosis, gametes would be produced through mitosis. This means the offspring would inherit the full set of each parent's genes, resulting in a doubling of chromosomes every generation. Besides, the absence of crossover events and independent assortment during meiosis would lead to reduced genetic diversity. This is unfavorable as genetic diversity is essential for a species' adaptability to changing environments.
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Of the following, which cause of aggressive dog behavior would most oftenbe the easiest to remedy?
A. Incompetent training B. Inadequate socialization C. Abuse D. Incompetent training, abuse, and inadequate socialization are all easy to remedy.
From which of the following layers of the sun is light energy radiated into space?
If the flowers contain 50,000 kcal of energy, about how much energy will the lizard obtain from eating the butterfly? 500 kcal 5,000 kcal 50,000 kcal 500,000 kcal
Answer:
5000 kal
Explanation:
The secondary consumer lizard, can store only 10% (500 kcal) of insects energy that is originally came from plant.
10% Rule:
In ecology the energy flow is decreasing as moving from one tropic level to another.
Here, the primary consumer insects, store only 10%(5000 kcal) of plant's energy.
Therefore, the secondary consumer lizard, can store only 10% (500 kcal) of insects energy that is originally came from plant.
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A sunflower and an amoeba are both living organisms. How is the structure of a sunflower different from the structure of and amoeba
A sunflower is a plant and Amoeba is a protist. Structurally Amoeba is a unicellular, microscopic organism and its cell does not have cell wall, whereas sunflower plant is a multicellular organism and its cell have cell wall. Since Amoeba is made of only one cell, all the life processes such as nutrition, excretion and reproduction carried out by one cell. In sunflower plant is made of many cells. All the cells are arranged in tissues, organs and organ systems. specific organ system performs specific life process, for example digestion system performs the function of digestion. Thus, Amoeba is a simple organism and sunflower is a complex organism.
Members of The same community always belong to The same
Final answer:
Community membership is characterized by shared norms and values that facilitate a sense of solidarity and unity within a group. The concept of 'Gemeinschaft' highlights how communal bonds are formed, transcending individual self-interest for the good of the group. Individuals often belong to multiple communities concurrently, based on various facets of their lives.
Explanation:
Members of the same community often have a shared set of values or priorities, which serves as the basis for their association. This concept, known as Gemeinschaft, describes a social group where individuals are connected through common norms due to shared experiences, physical space, or beliefs. These communities can include family, ethnic groups, religious congregations, or national communities, and they reflect a strong sense of togetherness and mutual bonds, forming a collective identity.
In these communities, such as those formed around hobbies like sports or music, age, career, or even shared geography, members are often more oriented to the will and good of the group than their own self-interest. They participate and contribute based on common mores or beliefs about appropriate behavior and responsibilities, nurturing a sense of solidarity and unity.
Ultimately, members of the same community do not always belong to just one community; they are part of multiple groups in different contexts of their lives, which can include political parties, sports teams, and various societal groups. It's their shared culture and experiences that help solidify their membership within a specific community, as they work in unity and support the collective goals of the group.
11. Does water have a high or low surface tension?
12. What does all the water on earth make up?
13. What is salinity?
14. Does fresh water have a high or low salinity?
15. What is a river basin? What river basin is Clinton, NC located in?
16. What is an estuary?
17. How do estuaries protect pollutants from entering the ocean?
18. How are estuaries affected by hurricanes?
19. Why are estuaries good nurseries for marine organism?
20. Where does an organism live if it is a marine organism?
Water has high surface tension. The water on Earth makes up the hydrosphere. Salinity is the measure of dissolved salts in water.
Explanation:11. Water has a high surface tension. Surface tension is the property of the surface of a liquid that allows it to resist an external force.
12. All the water on Earth makes up the hydrosphere. The hydrosphere includes all the water found on, under, and over the surface of the planet.
13. Salinity is the measure of the amount of dissolved salts in water.
14. Fresh water has a low salinity. It has a low concentration of dissolved salts.
15. A river basin is the area of land drained by a river and its tributaries. Clinton, NC is located in the Cape Fear River Basin.
16. An estuary is a partially enclosed coastal body of brackish water, where freshwater from rivers and streams meets and mixes with saltwater from the ocean.
17. Estuaries protect pollutants from entering the ocean through filtration and sedimentation. The plants and organisms in estuaries trap and remove pollutants from the water.
18. Estuaries are affected by hurricanes through storm surge. The high winds and low pressure of a hurricane can cause a surge of water that floods estuaries.
19. Estuaries are good nurseries for marine organisms because they provide protection, food, and shelter. The mix of saltwater and freshwater creates a unique and productive environment for many species.
20. Marine organisms live in the ocean. The term "marine" refers to organisms that live in saltwater environments.
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Explain why a trait inherited by incomplete dominance is not a blend of two alleles.
Answer:
The trait is inherited by incomplete dominance is not a blend of two alleles because both are equal and appear on the phenotype therefore it is not a blend of two alleles.
Explanation:
A trait which is inherited by Incomplete dominance is not a blend of two alleles as both the alleles show their effect as both are dominant however not completely but character appears in the phenotype of the person.
What is incomplete dominance?
Incomplete dominance results from the cross in which each of the parent is genetically unique and gives rise to progeny whose phenotype is in between the two parents. Incomplete dominance is also known as semi-dominance and partial dominance.
Incomplete dominance resembles with the idea of blending inheritance of characters, but can still be explained through Mendel's laws with some modifications. The alleles here do not exert full dominance and the offspring produced resembles a mixture of the two phenotypes of parents.
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what process produces usable energy in cells
Final answer:
Cellular respiration is the biological process that converts glucose into ATP, the usable form of energy for cells, involving stages such as Glycolysis and the Krebs Cycle.
Explanation:
The process that produces usable energy in cells is known as cellular respiration. This biochemical process involves a series of chemical reactions that break down glucose molecules and convert the energy stored in their chemical bonds into a form that cells can use.
The most common energy currency that cells use for this purpose is ATP (adenosine triphosphate). Cellular respiration happens in multiple stages, including Glycolysis, the Transformation of Pyruvate, the Krebs Cycle, and Oxidative Phosphorylation.
Through these stages, glucose and oxygen are transformed into carbon dioxide and water, and ATP is produced. This metabolic pathway is essential for supplying energy for all cellular activities, from muscle contraction to active transport across cell membranes.
If a cell is placed inside a solution that has a higher concentration of solute than on the inside of the cell, what can be said about the movement of water?