Answer:
Answer here:
Explanation:
African Elephants evolved large ears to fan themselves in the heat of the African Savanna plains. They also evolved thick skin as protection from predators, and quiet pads on the bottom of their feet to help them silently walk.
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Which describes the correct pairing of DNA bases?
O A. T with C, and A with G
OB. T with T, and C with C
O C. T with A, and C with G
O D. T with G, and A with C
Answer:
[tex] \boxed{C. \: T \: with \: A, \: and \: C \: with \: G} [/tex]
Explanation:
In dsDNA the bases in the two strands are paired through hydrogen bonds forming base pairs (bp). Adenine forms two H-bonds with thymine from opposite strand and vice-versa. Similarly, guanine is bonded with cytosine with three H-bonds. As a result, always a purine comes opposite to a pyrimidine.
A - T & G - C
There is a large tree growing in the middle of the lawn. You notice that there are lots of daisies in the lawn, but none under the tree. Suggest two hypotheses to explain why there are no daisies under the tree. Choose one of your hypotheses and make a prediction from it which can be tested by an experiment. Describe an experiment which could be done to find out if the prediction is correct.
Answer and Explanation:
Hypothesis:
1- No daisies can grow under the tree because its canopy does not allow enough radiation to reach the ground under it.
2- No daisies can grow under the tree because it changes the soil composition and pH.
Prediction:
Daisies grow better and faster when they are completely exposed to solar radiation.
Experiment:
30 daises young plants, grown under the same conditions, will be planted in three different parcels. Planting will take place during spring.The three parcels will have the same soil, with all the nutritional requirements that daisies need to grow properly. The three parcels will be watered every day to keep equal humidity conditions. The variable under study is the radiation, so this is the only factor that will differ between parcels. One of the parcels will be completely exposed to solar radiation. A second parcel will receive sunlight during half of the day, while the other half of the day will be under the shadow. The third parcel will be completely under the shadow (no radiation will reach this parcel). Daisies will be grown for four months. Every fifteen days all the plants will be counted in each parcel to check their survival. Their length will be measured, and the presence of new leaves, floral buttons, and ramifications will be registered. The size of the leaves and flowers will also be registered. After four months, data will be analyzed to evaluate how does the radiation influence the plants' growth.How do scientists know when life began?
Why do most multicellular organisms require more than just diffusion to facilitate gas exchange? What is the other process called? Name all the places in our body where these two different processes occur (i.e. where do we get diffusion and where do we get the other process).
Answer:
The description including its problem is described throughout the segment below on explanation.
Explanation:
Surface layer influences combustion efficiency, the larger the surface region, the more and more fuel traded. Hence, gills as well as lungs become established in the organism's purpose of providing an enormous surface area for both the necessary currency value of gas towards the outer atmosphere.
The ranges among gas exchanger as well as shallow tissues become ideal through dissemination to fulfill the necessity so a range of respiratory substances is required. Respiratory interfaces are coated with epithelial cells to allow exchanging of gases.The oxygen through both the respiratory system would be transferred into the bloodstream, as well as the RBC collect the CO2 from the cells it to the lungs for oxygenation. Exterior ventilation, oxygen absorption from capillaries to CO2 absorption from capillary to alveoli. Inner ventilation happens at the surface including its body cells.which process occurs during the light dependent reactions in photosynthesis
Answer:
Light-dependent reactions, which take place in the thylakoid membrane, use light energy to make ATP and NADPH. The Calvin cycle, which takes place in the stroma, uses energy derived from these compounds to make GA3P from CO2.
The process occurs during the light dependent reactions in photosynthesis is "Split water molecule occurs."
What is photosynthesis?Plants utilize sunlight, water, as well as carbon dioxide to produce oxygen or energy in the type of sugar in a process known as photosynthesis.
What is light dependent reactions?
The thylakoid membranes are the site of light-dependent reactions. The light-independent reactions happen in the stroma, which is located outside the thylakoid membrane, and thus the lumen, which is located inside.
The power storage molecule ATP and even the reduced electron transporter NADPH are produced by the light-dependent processes using light energy, which is required for the subsequent stage of photosynthesis. Light reactions in plants occur in the thylakoid membranes of organelles referred to as chloroplasts.
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A scientist measured an increase in nitrous oxide in the atmosphere this increase would result in
Please help me if you know help me with 2 and 3 please
Answer:
2.)how much a certain area can hold is carrying compacity
3>)if a disease killed most of the producers the species would have a chance of dying out
Explanation:
Maximum oxygen uptake, or V02max, is the point at which the rate of oxygen consumption reaches a platesu despite an increased workload. Consider the scenarios below, then click and drag each label into the appropriate category based on whether it increases Vo2max, decreases VOzmax, or neither
Lactic acid accumulaton Being male Being sedentary Training for a marathon
Centrai fatigue Being temale Gernting older weight raining
Results Iin Higher VO,max Results in Lower V02max Neither
Answer:
A. Results in higher vo2 max.
1. training for the marathon
2. weight training.
B. Results in lower vo2 max
1. lactic acid accumulation.
2. getting older
3. sedentary lifestyle
4. being female.
C. Neither.
1. being male
2. central fatigue
Explanation:
VO2 max is the measurement of the maximum oxygen consumption during continuously increasing exercise. Higher VO2 means the body is consuming a higher level of oxygen and delivering to muscles without muscle loss on this basis we can sort the following scenarios
A. Results in higher vo2 max.
1. training for the marathon (more oxygen consumption)
2. weight training. (more oxygen consumption)
B. Results in lower vo2 max
1. lactic acid accumulation.
2. getting older (less oxygen consumption and less oxygen delivery to muscles)
3. sedentary lifestyle (less oxygen consumption and less oxygen delivery to muscles)
4. being female.
C. Neither.
1. being male
2. central fatigue
A. Effects in higher vo2 max.
1. training for the marathon
2. weight training.
B. Outcomes in lower vo2 max
1. lactic acid accumulation.
2. getting older
What is the Maximum oxygen?
VO2 max is the measure of the maximum oxygen consumption during constantly increasing exercise. Higher VO2 represents the body is downing a higher level of oxygen and also delivering it to muscles without muscle loss on this basis we can sort the following scenarios
A. Effects in higher vo2 max.
1. training for the marathon (more oxygen consumption)
2. weight training. (more oxygen consumption)
B. Consequences in lower vo2 max
1. lactic acid accumulation.
2. getting older (less oxygen consumption and less oxygen delivery to muscles)
3. sedentary lifestyle (less oxygen consumption and less oxygen delivery to muscles)
4. being female.
C. Neither.
1. being male
2. central fatigue
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Question 1
If the cells and their genes are functioning normally.,
Answer:
If the cells and their genes are functioning normally so then the body of organism grow and develop rapidly.
Explanation:
Cell is a basic unit of life. Each cell contains about 30,000 genes which are responsible for performing different functions in the cell. Cell only activated a small portion of gene not the whole gene. Genes are made of DNA which helps in the production of proteins necessary for the normal functioning of the cell. If the cell and their genes are functioning normally so the body of living organisms also work properly and grow quickly.
is the vaccine effective ?
Answer:
A 2012 meta-analysis found that flu vaccination was effective 67 percent of the time; the populations that benefited the most were HIV-positive adults aged 18 to 55 (76 percent), healthy adults aged 18 to 46 (approximately 70 percent), and healthy children aged six months to 24 months (66 percent).
Explanation:
Hope That Helps :)
Which is inference? You measure A plants height every day for a week-you give a plant the same amount of water every day-every day for a week you collect data on a plants movement- After watching a plant for a week, you determine it needs more sunlight
Answer:
After watching a plant for a week, you determine it needs more sunlight
Explanation
Inference is a conclusion so you concluded the plant needs more sunlight.
Which molecule could he make that consist of long chains of red and black colored balls
Answer:
The red balls here refers to the hydrogen and black balls refers to carbon.
Salmon are bony fish (teleost) that spend considerable portions of their lives in the ocean. In this environment, values of salmon plasma osmolarity are about 300 mosm. As they swim about in the ocean, which statement is true?
A. There will be no net force to drive water either into or out of the fish.
B. There will be a net pressure for water to enter the fish.
C. There will be a net pressure for water to flow out of the fish.
D. Osmotic pressure will first force water into the fish, and then with time flip and force water out of the fish.
E. Pressures will first force water out of the fish, and then with time flip and force water into the fish.
Answer:
B. There will be a net pressure for water to enter the fish.
Explanation:
Salmon are born in fresh water and migrate to oceans for most of their life. They maintain homeostasis through the process of osmoregulation, where salmon control osmosis to maintain a water balance in ocean.
The salt water is hypo-tonic to their surroundings so the water molecules move out of the body cells as a result of osmosis and salmon dehydrates. Then the hormones of salmon help to adapt the condition and their will be a net pressure for water to enter the fish.
Hence, the correct option is B.
sport hunting seasons are regulated to the fall so that
Answer:
Explanation:
Sport hunting seasons are regulated to the fall so that surplus animals are taken before the challenges of winter. Process of changing the natural community to encourage the increase in populations of certain desirable species.
Sport hunting seasons are regulated to the fall so that surplus animals are taken before the challenges of winter.
By scheduling hunting seasons during this time, it allows for the preservation of reproductive individuals and ensures the survival of future generations.
Additionally, fall is a time when many migratory species are on the move, providing opportunities for hunters to engage in their activities.
Furthermore, regulating hunting seasons to the fall can help control wildlife populations, preventing overpopulation and the associated negative impacts on ecosystems. Finally, fall hunting seasons often align with cultural traditions and the availability of leisure time for hunters.
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which would best describe the process of natural selection
Answer:
D individuals that are well adapted to their environment survive
Which of the following wrap around neurons and speed up signals
Explanation:
myelin sheath ..........
The_ of the cell directs cell activity and acts like the control center.
Answer:
Nucleus
Explanation:
The Nucleus is the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
Answer:
nucleous
Explanation:
itacts like the control center
Analyze the given diagram of the carbon cycle below. Part 1: Which process does arrow F represent? Part 2: Explain how matter is conserved during the process. Part 3: Justify why this process is a recycling of carbon in the carbon cycle. Use complete sentences to explain your answer.
Answer:
F means oxygen from plant goes into the atmosphere.Explanation:
2. matter is conserved in this process because plants take carbon dioxide from the atmosphere for photosynthesis then produces oxygen into the atmosphere, animals then feed on plants and later the animal's faecal matter is released into the soil and even when animals die, microorganisms in the soil break I down into absorbable form for plants use. which makes matter conserved.
3. mater is in a circular state from atmosphere to plants to animals to soil then absorbed by plants to restart the process again.
hope it helps .
In laborador retrievers, pigment color is influenced by two genes. Gene A determines the type of pigment produced and gene B affects whether the pigment gets deposited in the hair shaft. If two heterozygous black laborator retrievers were crossed and offspring were produced in a ratio of 9 black dogs to 3 brown dogs to 4 yellow dogs, what are the genotypes of the
Answer:
Black dogs = A_B_
Brown dogs = aaB_
Yellow dogs = A_bb and aabb
Explanation:
In laborador retrievers, pigment color is influenced by two genes. Gene A determines the type of pigment produced and gene B affects whether the pigment gets deposited in the hair shaft. If two heterozygous black laborator retrievers were crossed and offspring were produced in a ratio of 9 black dogs to 3 brown dogs to 4 yellow dogs, what are the genotypes of the offspring?
Gene A determines colored pigment.
Gene B ensures that the colored pigment is deposited.
Two heterozygous black laborador retrievers were crossed.
AaBb x AaBb
Progeny
9 A_B_
3 A_bb
3 aaB_
1 aabb
Since there were 9 black, 3 brown and 4 yellow dogs, the possible genotype of the different colors are:
Black dogs = A_B_
Brown dogs = aaB_
Yellow dogs = A_bb and aabb
What happens to ADP after ATP hydrolysis? It is used to make glucose. It is broken down for energy. It is expelled from the body. It is used to make ATP.
Answer:
It is used to make glucose
Explanation:
Hope it helps .
Answer:
It is used to make Glucose.
Explanation:
gradpoint
In the yawncat (a rare hypothetical animal), the dominant allele R causes solid tail color, and the recessive allele r results in white spots on a colored background. The black coat color allele B is dominant to the brown allele b, but these genes can only be expressed if the animal has an mm genotype at a third gene locus. Animals that are M- are yellow regardless of which allele from the B locus is present. A mating between a solid yellow-tailed male yawncat and a solid brown-tailed female yawncat produce 16 offspring with the following tail phenotypes: six solid yellow, two spotted yellow, three solid black, one spotted black, three solid brown, and one spotted brown.
a. What are the most likely genotypes of the male and female parents? Explain the strategy used to determine the genotypes.
b. What is the probability of the next offspring having a solid brown tail?
When meiosis is complete, what has been produced?
O A. Four haploid cells
O B. Two diploid cells
O C. Four diploid cells
O D. Two haploid cells
Answer: Four haploid cells
Explanation: APE
what is echolocation
Answer:
The location of objects by reflected sound, in particular that used by animals such as dolphins and bats.
Explanation:
Answer:
When you use sound to find things because the sound bounces back of the object
Dolphins use it
List ways to reduce your carbon footprint
Answer:
1. Utiliza menos la secadora de ropa
Los tendederos y los rack de secado son una opción amigable con el planeta. Las secadoras de ropa producen una gran cantidad de CO2, al no utilizarlas bajas tu consumo de electricidad (y la cuenta), dejas de producir dióxido de carbono y, además, tienes como aliado al mejor quitamanchas que existe: el sol.
2. Desconecta el cargador de tu celular
Aunque no estés usando el cargador, si lo dejas conectado sigue consumiendo energía y contribuyendo al cambio climático, por eso los llaman ?vampiros de energía?. Lo mismo pasa con el resto de tus aparatos si los dejas conectados: pantalla de TV, computadora, Blu-ray, DVD, etc. La mejor opción es comprar barras multicontacto, con estas podrás desconectar todas tus máquinas en un solo movimiento.
3. Mantén limpio tu refrigerador
El exceso de bolsas de plástico y empaques, así como mantener el congelador con hielo, hacen que tu aparato necesite más potencia para enfriar, y con ello se gasta más electricidad.
4. Saca la bicicleta
Muchos trayectos no justifican el uso del automóvil, ¿por qué no mejorar de paso tu salud recurriendo más a la bicicleta? (Considera también el transporte público).
5. Utiliza bolsas de tela cuando hagas el súper
Seguro esto ya lo sabías, pero uno de los mayores enemigos del medio ambiente el el uso excesivo del plástico, y usar cajas cartón o bolsas de tela al hacer el súper, es una medida necesaria.
6. Regresa al termo
Comprar botellas plásticas con líquido cada que tienes sed es poco amigable con el planeta, mejor compra un termo y lleva en éste tus bebidas. Un beneficio adicional es que podrás controlar mejor la calidad de los líquidos que ingieres pues los llevarás desde tu hogar, y no te arriesgarás con bebidas de dudosa calidad. Con el tiempo verás que el ahorro también será notable.
7. Reduce la ingesta de carnes
Ya se trate de cerdo, res o aves, el proceso para llevarlos a tu mesa gasta una gran cantidad de energía.
8. Mantén tu automóvil en buen estado
Si necesitas seguir utilizando tu coche, mantenlo en buen estado. Los autos con el mantenimiento adecuado, como las llantas infladas correctamente, generan menos emisiones de gases de efecto invernadero, además de que no te dejarán tirado en el camino.
9. Adopta plantas endémicas
Las plantas propias de la localidad donde vives no requieren demasiado uso de agua, y sus beneficios son mayores al absorber el CO2 del aire. Lo mejor sería que plantaras un árbol, pero si no cuentas con el espacio o las condiciones necesarias, puedes explorar algunas ideas alternativas como los jar
dines verticales.
10. Recuerda las tres erres
Busca tener presente siempre el significado de las tres erres y procura aplicarlas siempre que puedas: Reduce, Reutiliza y Recicla.
Which of the following is an environmental cost of agriculture?
A. Reduced biodiversity
B. More crop rotation
C. More cash crops
D. Reduced soil erosion
Answer:
A. Reduced biodiversity
does a dog like me? Is scientific or nonscientific
Answer:
dogs loves there owners and to be a owner you must love and to love you need to really love :)
Explanation:
so if your a good person to call your self a owner then yes you are!!!
Answer:
Non scientific.
Explanation:
Whether or not a dog likes you cannot be truly proven, and is more of a subjective query. A dog cannot really like or dislike a person. They can trust or not, they can be loyal or not, dominating or not, and such things, but “like” is an extremely opinionated term.
A scientist investigates two types of cells located in different parts in the
human body. Cell A contains many more mitochondria than Cell B. What is
the best conclusion to make from this observation?
A. Cell A has a larger vacuole than Cell B.
B. Cell A produces more protein than Cell B
C. Cell B does less work than Cell A.
D. Cell B creates more energy than Cell A.
Answer:
Mitochondrion.The function of mitochondrion is it used as a site for cellular respiration.
Respiration produces energy as the end product.
so,the higher the amount of mitochondrion,the higher the energy produced by respiration.
he Punnett square shows the cross for a particular trait between a homozygous dominant parent and a heterozygous parent. What is the probability the offspring will be heterozygous for this trait? 25% 50% 75% 100%
Answer:
50%
Explanation:
Let's make a Punnett square to represent this, with X representing our dominant allele and x our recessive.
One homozygous dominant parent = XX
One heterozygous parent = Xx
X X
X XX XX
x Xx Xx
So two out of our four outcomes are heterozygous for the trait. That means the answer is B. 50%.
The probability the offspring will be heterozygous for this trait is 50%
What are the features of heterozygous traits?Heterozygous is the presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles.
If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair.
To be heterozygous for a trait is to have different alleles for it. Being homozygous for a trait means that it will always turn out the same.
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1 and 3 please help me
Answer:
it's so hard and deep
Fungi are important decomposers in terrestrial ecosystems. Some fungi are able to break down lignin in plants, through the production of an enzyme called lignin peroxidase, something that no other organism can do. The ability to break down lignin by some fungi is reflected by which of the statements?
A. Expression of genes necessary to break down lignin were lost in lineages that are not in the evolutionary history of fungi.
B. A mutation occurred in a gene found in some fungi, and the enzyme produced is able to break down lignin.
C. Many organisms have the end to producentymes for breaking down lignin but do not express those genes
Answer:
The correct answer is option B. "A mutation occurred in a gene found in some fungi, and the enzyme produced is able to break down lignin".
Explanation:
The unique trait of expressing lignin peroxidase that some fungi have in order to break down lignin must have being the result of natural selection. Natural selection works under the premise of "survival of the fittest", where a spontaneous mutation gives an advantageous trait to an individual that makes it more likely to survive and reproduce. In this case breaking down lignin gives some fungi the advantage of being able to feed from wood.
