1. List the major ways in which humans are damaging the environment
2. Floods can devastate an ecosystem, however they can also have a positive impact. Please explain the positive impacts major floods can have on the ecosystem.
3. How do seasonal changes in temperature, water availability and sunlight affect ecosystems?
4. Propose 5 ways that humans can help minimise the negative effects both natural events and human impact can have on ecosystems. (Not from google )

Answer:

false

Explanation:

Answer:

Explanation:

Datos disponibles:

Podemos suponer que para el gen determinante del color de lana, el alelo dominante L determina lana blanca, mientas que el alelo recesivo l determina lana negra. También podemos suponer que para el gen que determina la longitud de las orejas, el genotipo LL expresa orejas largas, el genotipo Ll expresa orejas medianas, y ll expresa orejas cortas por tratarse de herencia intermedia. Entonces:

B--> Lana Blanca

b --> Lana Negra

LL --> Orejas largas

Ll --> Orejas medianas

ll --> Orejas cortas

Cruza: carnero de lana negra y orejas largas X oveja de lana blanca y orejas cortas

Puesto que en la progenie habia por lo menos un ejemplar con lana de color negro, podemos suponer que la oveja era heterozigota para la caracterítica en cuestión, ya que es la única forma de obtener un genotipo recesivo en la F1.

Parentales)   bb LL           x        Bb ll

Gametos) bL, bL, bL, bL          Bl, bl, Bl, bl

Cuadro de Punnet)   Bl        bl        Bl       bl

                     bL      BbLl     bbLl    BbLl   bbLl

                     bL      BbLl     bbLl    BbLl   bbLl

                     bL      BbLl     bbLl    BbLl   bbLl

                     bL      BbLl     bbLl    BbLl   bbLl

F1) Genotipo: 8/16 BbLl

                      8/16 bbLl

    Fenotipo: 8/16 o 50% animales de lana blanca

                      8/16 o 50% animales de lana negra

                      16/16 o 100% animales de orejas medianas

Posiblemente no sea necesario utilizar un cuadro de Punnet con la cruza mencionada. Sabiendo los genotipos paterno y materno es posible determinar las proporciones fenotipicas de la F1 sin realizar el cuadro de Punnet.

Aun así, mientras haya pocos genes dialélicos involucrados en la cruza, el uso del cuadro de Punnet siempre resulta útil para una mejor visualización de la cruza.

Stronger hind-leg muscles would most likely aid in an individual  jackrabbit's survival if predation in the area suddenly increased. Therefore, option (A) is correct.

Stronger hind-leg muscles would allow a jackrabbit to run faster and jump higher, which would increase its chances of escaping from predators. This trait would be particularly advantageous in an environment where predators are abundant and pose a significant threat to the survival of the population.

Shorter reproductive cycles and better disease resistance may also be beneficial in some circumstances, but would not directly aid in escaping predation. A heavier fur coat may be advantageous in colder environments, but would not necessarily improve an individual's chances of escaping predation.

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Answer:

The correct answer is - option D. rubbing hands in warm water.

Explanation:

The control group or the control is the variable or that is used in an experiment to check if the results are actually due to the experiment or to compare the result or effect of the experiment.

In this experiment, the independent variables are soap and the sanitizer and the dependent variable is the count of bacterial culture. To check the result or to compare the result that results are due to the experiment the control group is rubbing the hand vigorously in warm water.

Answer:

Sure... math is used more probably but the two things are also important

Explanation:

Answer:

Amino acids

Explanation:

Amino acids are the building blocks of proteins. If two amino acids are joined together it will make a dipeptide.

Answer:

Genetically Modified (GM) crops

Explanation:

Why Genetically modified crops are more beneficial?

Genetic engineering provides a quicker and more precise way to achieve the same goal, in one generation rather than twenty. Genetically Modified (GM) crops offer improved yields, enhanced nutritional value, longer shelf life, and resistance to drought, frost, or insect pests.

Carbonic acid releases hydrogen ions, which combine with carbonate in seawater to form bicarbonate, a form of carbon that doesn't escape the ocean easily. As we burn fossil fuels and atmospheric carbon dioxide levels go up, the ocean absorbs more carbon dioxide to stay in balance.Carbon dioxide is naturally stored in the ocean through chemical processes, either as a dissolved gas or, over a longer time scale, as carbonate sediments on the seafloor. In fact, more than 70 percent of current CO2 emissions will eventually wind-up in the ocean.

The property of water that allows the Oceans' water to store carbon dioxide is :    Oceans' Temperature and salinity

The Ocean is one of the carbon sinks where carbon is stored in nature, in the form of a dissolved gas or  stored over a long time in the form of carbonate sediments.

The ocean is the largest carbon reservoir because the ocean readily absorbs  carbon released into the atmosphere from the burning of fossil fuels through several chemical process. and this is due to its salinity and temperature .

Hence we can conclude that The property that allows Oceans' water to store carbon dioxide is the Oceans' Salinity and temperature.

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Explanation:

1. A boat being accelerated by the force of the engine

2.Bringing water to the boil in an electric kettle

3. A toaster transforms electrical energy into thermal energy.

4. A blender transforms electrical energy into mechanical energy.

5. Our bodies convert chemical energy from food into mechanical and electrical energy to allow us to move.

Answer:

Red blood cells are formed in the red bone marrow of bones. Stem cells in the red bone marrow called hemocytoblasts give rise to all of the formed elements in blood.

Answer:

Skeletal System

Explanation:

To be specific, red blood cells, white blood cells, and platelets are produced in the bone marrow

Hope this helps :)

Answer:

Answer Is D :)

Explanation:

Answer:

D. Large Lungs

Explanation:

Answer:

1) tailbones in humans

B. Balance in monkeys

2) eyeballs in cavefish

A. Sight in whales

3) pelvis bone in whales

C. Attachment point for limbs in frogs

Vestigial organs like tail bones in humans are equivalent to the balance in the monkey, eyeballs in cavefish to the sight in whales, and pelvis bones to the attachment. Thus, the correct options are 1. b, 2. a, and 3. c.

The tissues and cells define vestigial organs, that was inherited from the ancestors but now do not have a specific purpose in the organism and are considered non-functional.

The tail bones in humans or the coccyx that were inherited from the common ancestor of the mammalian group are non-functional but in monkeys provide balance. Hence, option b is correct.

The eyeballs in cavefish are considered non-functional as they live in dark oceanic parts, on the other hand, these eyes are used as sight in whales. Hence, option a is correct.

The pelvis bones in whales are vestigial organs as they do not walk or jump, unlike the frogs with pelvis bones as the attachment joint. Hence, option c is correct.

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Answer: Insertion

Explanation:

There is a letter inserted.

Original Strand : ATC CAT

Mutation Strand: ATC GCAT . The type of mutation has occurred above is the Insertion. Thus, option C is correct.

A mutation has been known as the changing or modification in the nucleic acid or DNA sequence of a person. This has a natural process that occurs due to mutagens.The type of the mutation that has been occurred when DNA replication occurs before meiosis is inversion.

Mutation can also be artificially induced to bring out changes in the gene sequences for specific reasons. There are different types of mutations somatic mutation occurs in the body cell and chromosomal mutation occurs in the structure of chromosome coin mutation changing the nucleotide.

In this particular insertion, there is an insert of three bases. Complementary strands in DNA are the opposite strand, so Adenine is coupled to Thymine, and Guanine is coupled to Cytosine.

Therefore, Original Strand : ATC CAT

Mutation Strand: ATC GCAT . The type of mutation has occurred above is the Insertion. Thus, option C is the correct.

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Answer:

The process that is used by producers to make glucose is called photosynthesis and the chemical process used by both producers and consumers to make ATP it contribute to the energy exchange is called cellular respiration. And the name is Photosynthsis.

Explanation:

hope this helps!! <33

Palisade cells are present on the top of the leaf surface because they helps the leaf in maximizing the extent of light absorption through the leaves.

Palisade cells are the plant cells which are located on the upper surface of the leaves, right below the epidermis cells layer and the cuticle that is the outermost layer of the leaf in plants. In simpler terms, they are known as leaf cells.

The palisade mesophyll layer contains the largest per cell number of chloroplasts in the plant body. It is usually positioned towards the upper surface of the leaf of plants in order to harness the greatest amount of energy which is possible. Palisade cells are placed all over the top of a leaf surface, for maximizing the extent of light absorption through the leaves.

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Answer:

A

Explanation:

Nuclear Fusion of lighter elements into heavier elements is the process produces the largest amount of energy given off by stars. Thus option A is correct.

Nuclear fusion is process where two or more atomic nuclei fuse together and form a single heavier nucleus, here the matter is not conserved and the mass of the fusing nuclei is converted to energy.

When deuterium and tritium fuse together and form helium atom, fast neutron, the remaining extra mass is transformed into kinetic energy.

The participating nuclei should be brought together by a nuclear forces which become active and glue to the nuclei together, it shows no pollution effect with less nuclear waste.

The nuclear fusion energy used to clean and produces a minimum amount of nuclear waste compared to nuclear fission reactions and the fuel for fusion, Deuterium, and Tritium are available in nature,  viable alternative power source in the coming centuries.

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Answer:

b

Explanation:

Have a great day!

Activation energy is the energy required for a reaction to proceed, and it is lower if the reaction is catalyzed.

Answer:

a

Explanation:

hpe that helps

Answer: if human enegrgy, to survive and power our muscles. if electrical energy, because we need it to cook and everything else

Answer:

Explanation:

Without energy you wont be able to do anything. You wont even be able to move. Energy fuels your body's internal functions, repairs, builds and maintains cells

Answer:

C.

Explanation:

The difference between biopharmaceuticals and traditional pharmaceuticals is that they are not made by chemists in laboratories but by using bioreactors and living organisms. These organisms range from yeast or microbes all the way to mammalian cells. Biopharmaceuticals also called biologics are shedding new light on fighting cancer.

The contractile vacuole helps the paramecium to survive in freshwater environments by removing the excess water and preventing cell swelling.

In conclusion, the contractile vacuole helps the paramecium to survive in freshwater environments by removing the excess water and preventing cell swelling.

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Answer:

commensalism

Explanation:

Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected.

Answer:

explanation

Explanation:

California is known to have limited water supply which comes from surface water and water that gathers on the ground, forming rivers, lakes and streams.

If the scientific predictions work as expected and the area loses nearly 15 percent of its water source, there would be the loss of agricultural resources.

Agriculture is one of the biggest industry in California and the state may have much limited water supply to grow their crops, feed their animals and for transportation.  

The government can use improved technological methods to design reservoirs that can collect water during wet times and reduce evaporation during hot periods. Also, they can create a good network of aqueducts that would aid the right distribution of water across distances.  

Answer:

decreased, 1/2x, linear

Explanation:

A horse galloped at 40 km/hr, then it began to slow down. The horse slows down at 20km/hr. We know the kinetic energy of the horse decreased by a factor of 1/2x. The relationship between kinetic energy and speed is linear.

The average speed has been defined as the total distance traveled by the object in a particular time interval. The average speed is a scalar quantity.

Kinetic energy has been defined as the energy of the object that occurs due to the motion of the object. The total work needed by the body to starts accelerating it by the help of given mass which has supplied from the rest position and its mentioned velocity.

The energy body gets due to the process of acceleration by this the body will able to main the kinetic energy of the body without changing the speed of the body. The energy which has been stored in the body or any object by the help of the particular position or the proper arrangement of the parts is known as potential energy.

There will be no effect of the outside environment on the potential energy that present inside the body. The kinetic energy decrease or increase with change in the velocity.

Therefore, A horse galloped at 40 km/hr, then it began to slow down. The horse slows down at 20km/hr. We know the kinetic energy of the horse decreased by a factor of 1/2x. The relationship between kinetic energy and speed is linear.

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Answer:

Answer:For comparison, the eccentricity of the Earth's much more circular orbit is only 0.0167. Mercury, as the innermost planet, is also the fastest moving major planet in the solar system . The mean orbital velocity is about 48 km/s (the Earth moves at 30 km/s).

Answer:

genetic traits to exist in a gene pool

Explanation:

Adaptation through natural selection is limited because it requires that the genetic traits must have existed in the gene pool.

Natural selection only acts on the existing gene pool and selects for adaptive genes, not that it creates new genes. Hence, for a population to be able to adapt to a particular change in the environment, the adaptive genes must have been present in the gene pool of the population. This, thus, makes adaptation through natural selection to be limited.

Answer:

It depends largely on environment!

Explanation:

External fertilization usually occurs in aquatic environments (fish) where both eggs and sperm are released into the water. After the sperm reaches the egg, fertilization can then take place. Most external fertilization happens during the process of spawning where one or several females release their eggs and the male(s) release sperm in the same area, at the same time. The release of the reproductive material may be triggered by water temperature or the length of daylight. Nearly all fish spawn, as do crustaceans (such as crabs and shrimp), mollusks (such as oysters), squid, and echinoderms (such as sea urchins and sea cucumbers). Pairs of fish that are not broadcast spawners may exhibit courtship behavior. This allows the female to select a particular male. The trigger for egg and sperm release (spawning) causes the egg and sperm to be placed in a small area, enhancing the possibility of fertilization.

When it comes to spawning, where large clutches of eggs will be fertilized at the same time it increases the probability of survival amongst the eggs, only by sheer force of numbers. If fish only fertilized small clutches there would be little to no survivors due to predator's population. Because of predators like Turtles, a lake with little predator's (turtles) will have a higher chance of egg survival rate. On the other hand, Lakes and ponds will have A lower survival rate for egg clutches with more predator's, like turtles.

Hope this helps! let me know in the comments if I need to answer any other parts of this prompt, I would be happy too.

Answer:

b. nucleic acids

Explanation: