A Punnett square is a type of model. Which type of model does this Punnett square represent?
a)conceptual
b)functional
c)mathematical
d)physical
Answer:
c
Explanation:
it uses percentages, like 50% Aa, 25% aa and 25% AA
How are increased CO2 levels and increased temperatures affecting plant growth in the two experiments shown?
High CO2 levels cause plants to thicken their leave ,which could worsen climate change effect researchers says.
plant scientists observed that when CO2 levels increase in the atmosphere most plants do unusual , they thicker their leave
germination increase in high temperature up to the point
Increased CO2 levels and temperatures affect plant growth by bringing about a corresponding increase.
What is Photosynthesis?
This the process in which plants manufacture their food through the presence of sunlight.
other compounds such as CO2 and water are used which is why increase in the CO2 levels and temperatures will increase the growth of plants.
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Imma give u brainliest
If anyone answer these questions
Answer:
it is to do with something called angular moment. Gravity is the central force in the Universe, because it is the only one which has a significant pull over large distances.
5:Orbits are the result of a perfect balance between the forward motion of a body in space, such as a planet or moon, and the pull of gravity on it from another body in space, such as a large planet or star. ... These forces of inertia and gravity have to be perfectly balanced for an orbit to happen.
6;Gravity is the force that keeps planets in orbit around the Sun.
7.gravity
The dynamics of a rotating body is of course controlled by forces like gravity. Kepler's laws are a direct consequence of gravity
8.Rather, the term is derived from the concept of the tide "springing forth." Spring tides occur twice each lunar month all year long, without regard to the season. Seven days after a spring tide, the sun and moon are at right angles to each other
9.Neap tides occur halfway between each new and full moon – at the first quarter and last quarter moon phase – when the sun and moon are at right angles as seen from Earth.
4. Which relationship is an example of commensalism?
A.An oxpecker bird eating insects off the back of a rhinoceros
B.The clownfish living in a sea anemone
C.Tapeworms living in a human
D.Moss growing higher on a tree to gain nutrients and sunlight.
Answer:
B.The clownfish living in a sea anemone
Explanation:
It's a relationship between two organisms where one benefits and the other gains neither harm nor benefit
Answer:
D. Moss growing higher on a tree to gain nutrients and sunlight.
Explanation:
I just had this question.
Which of the following is the best representation of the limiting factors affecting the elk population in this ecosystem?
O Number of scavengers, number of wolves, number of scientists studying Yellowstone.
Number of scavengers, and harshness of winter
Number of wolves, and harshness of winter.
The elk have no limiting factors
Answer:
Number of wolves, and harshness of winter.
Explanation: I took the test
The combination of factors that is capable of limiting the population of elk in an ecosystem would be the number of wolves and the harshness of winter.
The limiting factors of a population are those factors that hinder the population of an organism from increasing unlimitedly. In other words, limiting factors hinder populations from reaching their biotic potentials.
Limiting factors can be density-dependent if they have correlations with the density of species or density-independent if they have no correlation with an organism's density.
Wolves generally prey on elks, so they limit the growth of elk's population in an ecosystem. A harsh winter will also limit the overall growth of the population of elk in an ecosystem.
Scavengers cannot be a limiting factor to elk's population because they only feed on carcasses.
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Carbon dioxide is least soluble in ocean water
A .None of these answers are correct.
B . in the Arctic Ocean.
C .in the North Atlantic Ocean.
D . near the South Pole.
E . at the equator.
Answer:
it's either be or see because it's more soluble with water the sense the Arctic Ocean is you know near the Arctic which would be like more North Pole and it be really cold and Frozen it's more contact with just normal water so I'm pretty sure the North Atlantic Ocean so c
Please help me i have to turn this in or my mom will yell at me :(
NO BOTS OR TROLLS!!
Tysm
Explanation:
I'm guessing this
faster entropy
5. What animal does the scientist Shawn Carol study?
Answer:
His studies focus on the evolution of cis-regulatory elements in the regulation of gene expression in the context of biological development, using Drosophila as a model system.
Answer: His studies focus on the evolution of cis-regulatory elements in the regulation of gene expression in the context of biological development, using Drosophila as a model system.
Explanation:
PLSSS HELPP MMEE!!
How does carbon dioxide in the atmosphere eventually cycle through to a carnivore?
A. Plants use carbon dioxide in the atmosphere during photosynthesis, herbivores eat the plants, and a carnivore eats an herbivore.
B. Carnivores use carbon dioxide in the atmosphere during cellular respiration.
C. Herbivores use carbon dioxide during photosynthesis, and a carnivore eats an herbivore.
D. Plants use carbon dioxide in the atmosphere during photosynthesis, and a carnivore eats the plants.
Plants use carbon dioxide in the atmosphere during photosynthesis, herbivores eat the plants, and a carnivore eats an herbivore.
How carbon move from atmosphere to the biosphere?Carbondioxide gas move from atmosphere to the biosphere by absorbing by the plants in the process of photosynthesis. These plants are the food of herbivores so they eat it and carbon move from plant to herbivore. Then the carnivore feed on the herbivore.
So we can conclude that option A is the right answer.
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thanks fpr the help man! i appreciate it!
Easy points: Is this a good paragraph for my biology class??The question was why is it important for soil to contain nitrogen, phosphorus, magnesium, and potassium.
Soil is one of the main sources of nutrients needed by plants in order to grow. Nitrogen is used by plants for leaf growth and green color. Without nitrogen in the soil, the plant wouldn’t grow tall and produce enough food.Phosphorus is used by plants to help form new roots, make seeds, fruit and flowers.This is crucial because crops take up phosphorus only from the soil solution.Potassium helps plants form strong stems and fast growth. It also increases disease resistance.It triggers activation of enzymes and is essential for production of ATP. Magnesium is the central core of the chlorophyll molecule in the plant’s tissue. If Mg is deficient, the shortage of chlorophyll results in poor and stunted growth.
Answer:
It makes the roots absorb the nutrients easier
Explanation:
the roots of the plant are meant to absorb water and nutrients for the plants to manufacture food easly and to grow, the soil contain nutrients for the plants to absorb them.
The early ancestors of horses showed the presence of digits on their limbs, while modern horses have hooves. What are likely possible reasons for this change?
Answer:
Natural Selection & Fitness
Explanation:
Horses have evolved to run as fast as possible because they are prey animals.
The hooves give advantages to the predecessors to the modern horse rather than the foot-bearing horses.
Thus when somebody inevitably becomes a snack, the hoof bearing horses lived longer. (Natural selection)
Because they've lived longer, they've had more babies. (Fitness)
Their babies are more likely to pass on the genes they've inherited from their successful parents, and the population of hooved-horses begins to exceed the population of footed-horses.
In this circumstance, all the footed-horses are gone. The population has evolved.
Hope this helps <3
PS: here's a source! https://www.amnh.org/exhibitions/horse/the-evolution-of-horses/on-your-toes#:~:text=Hooves%20and%20long%20legs%20help,many%20horses%20retained%20three%20toes.
The above graph shows vertebrate diversity in terms of total
number of species. Which of the vertebrate classes listed in
the graph would have the BEST chance of at least some of
the species surviving a major environmental change?
A:bony fish
B:birds
C:sharks, rays
D: mammals
Answer: a
Explanation:
Answer:
a
Explanation:
Define
1.epiphyllous stamens
2.staminode
Answer:
1. Epiphyllous is anything that is growing on the surface of the leaf or get attached to it of any other plant. ... In this, the stamen gets attached to the part of the flower of some other plant as an adhesion of stamen. Explanation: In other words, Epiphyllous stamen are the Filaments fused with tepals.
2. In botany, a staminode is an often rudimentary, sterile or abortive stamen, which means that it does not produce pollen. Staminodes are frequently inconspicuous and stamen-like, usually occurring at the inner whorl of the flower, but are also sometimes long enough to protrude from the corolla.
Explanation:
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Según la historia evolutiva y sus diferentes saltos, ¿Qué linaje de especies es más antiguo?
A-Reptiles
B-Peces
C-Anfibios
D-Aves
es la A
Hace aproximadamente 250 millones de años ocurrió la extinción masiva del Pérmico-Triásico, un evento en el cual murieron hasta el 96 por ciento de las especies marinas y un porcentaje similar de las terrestres. Cerca de tres millones de años después se produjo la separación, a partir de un ancestro en común, de los linajes que con el tiempo darían origen a las aves y los cocodrilos. El grupo que incluye tanto a cocodrilos como aves se lo denomina Archosauria, que significa ‘reptiles dominantes’.
espero y te ayude
On a warm day near the ocean, a breeze or wind often blows from the water to the land. Explain why this happens
Answer:
It occurs because of the difference in temperature between the ocean and the land.
This happens because the land heats up faster than the water, causing the air to rise above the land and allowing cooler air from the ocean to move in and take its place.
What is sea breeze?Because land and water have different capacities for holding heat, the land will heat up more quickly than the water on a hot day near the ocean. As a direct consequence of this, the air that floats above land tends to become warmer and less dense than the air that floats above water. Because of this, a region of low pressure is created over the land, while a region of high pressure is created over the water. In order to maintain a natural equilibrium, air will always move from areas of higher pressure to areas of lower pressure.
A breeze or wind that blows from the water to the land is caused by the air that is cooler and denser over the water moving towards the air that is warmer and less dense over the land. This phenomenon, which is referred to as a sea breeze, can assist in moderating temperatures on land, thereby making it feel more bearable and pleasant to be there.
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How does biomagnification put a top predator at a disadvantage?*
Answer:
Food is much harder to find the farther up the food chain you go. Toxins and chemicals accumulate in the bodies of everything that was eaten by the food that you eat. Toxins and chemicals bind to the tissue of larger animals better than smaller ones.
Answer:
Explanation:
Toxins accumulate in the bodies of everything that was previously eaten.
What changes are caused by the hydrogenation of fatty acids?
A. The smell of fat changes
B. The number of calories per gram of fat is reduced
C. The fat becomes more invisible in foods
D. Liquid oils are converted to solid fats
1. How many layers are there in an arthropod's exoskeleton? What is the main function of
each layer?
Explanation:
The exoskeleton and molting
The success of arthropods derives in large part from the evolution of their unique, nonliving, organic, jointed exoskeleton (see figure), which not only functions in support but also provides protection and, with the muscle system, contributes to efficient locomotion. The exoskeleton is composed of a thin, outer protein layer, the epicuticle, and a thick, inner, chitin–protein layer, the procuticle. In most terrestrial arthropods, such as insects and spiders, the epicuticle contains waxes that aid in reducing evaporative water loss. The procuticle consists of an outer exocuticle and an inner endocuticle. In the exocuticle there is cross-bonding of the chitin–protein chains (tanning), which provides additional strength to the skeletal material. The hardness of various parts of the exoskeleton in different arthropods is related to the thickness and degree of tanning of the exocuticle. In crustaceans, additional rigidity is achieved by having the exoskeleton impregnated with varying amounts of calcium carbonate.
arthropod integument
arthropod integument
Diagrammatic section through the arthropod integument.
Encyclopædia Britannica, Inc.
The formation of an exoskeleton required the simultaneous solution of two functional problems in the evolution of arthropods: If the animal is encased in a rigid covering, how can it grow and how can it move? The problem of growth is solved in arthropods by molting, or ecdysis, the periodic shedding of the old exoskeleton. The underlying cells release enzymes that digest the base of the old exoskeleton (much of the endocuticle) and then secrete a new exoskeleton beneath the old one. At the time of actual shedding, the old skeleton splits along specific lines characteristic of the group, and the animal pulls out of the old skeleton as from a suit of clothes. The old skeleton is usually abandoned but in some species is eaten. The new exoskeleton, which is soft and flexible, is then stretched by localized, elevated blood pressure augmented by the intake of water or air. Hardening occurs by stretching and especially by tanning within a number of hours of molting. In crustaceans, calcium carbonate is deposited into the new procuticle. (Soft-shell crabs are simply newly molted crabs.) Additional endocuticle may be added to the exoskeleton for some days or weeks following molting.
molting
molting
Grasshopper shedding its exoskeleton.
© Cathy Keifer/Dreamstime.com
Molting is under hormonal control, and there is a long preparatory phase that precedes the process. The steroid hormone ecdysone, secreted by specific endocrine centres and circulated in the blood, is the direct initiator of molting. The actual timing of a molt, however, is regulated by other hormones and commonly by environmental factors. The interval between molts is called an instar. Because of the frequency of molts, instars are short early in life but grow longer with increasing age. Some arthropods, such as most spiders and insects, stop molting when they reach sexual maturity; others, like lobsters and crabs, molt throughout their lives. Most of the larger spiders of temperate regions, for example, molt about 10 times before reaching sexual maturity. As a result of molting, the length and volume of an arthropod display steplike increases over the life span, but internal tissue growth is continual as in other animals.
Loss of a limb is a common hazard in the life of many arthropods. Indeed, some arthropods, such as crabs, are capable of amputating an appendage if it is seized by a predator. The limb is then regenerated from a small, nipplelike rudiment formed at the site of the lost limb. The new limb develops beneath the old exoskeleton during the premolt period and then appears when the animal molts.
Answer:
Three layers
Explanation:
Outer= Composed of proteins and lipids. Repels water and prevents desiccation in terrestrial places.
Middler=Provides primary protection
Inner=Flexibke at joints, muscles attach here.
We have concluded that the spiders have different traits for silk flexibility because the offspring inherited different combinations of gene versions from their parents.
The evidence supports this claim because . . .
The is concluded that spider silk flexibility varies because their offspring inherited different combinations of gene versions from their parents, demonstrating that spider silk quality is dependent on the gene present in it.
What is the significance of the spider's silk?The quality of the spider silk is genetic, and due to this, some of the spiders do produce high-quality silk while others produce average or poor-quality silk, but the silk has many applications in various fields, such as biomedical fields such as in tissue engineering, drug delivery, and wound healing, due to its biocompatible, non-toxic properties.
Hence, it is concluded that spider silk flexibility varies because their offspring inherited different combinations of gene versions from their parents, demonstrating that spider silk quality is dependent on the gene present in it.
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Why does a lot of rain form over West Ferris?
Answer:
This idea helps explain why more rain forms over West Ferris than East Ferris.Therefore, when explain that water vapor condenses higher in the atmosphere, they are actually explaining that water vapor condenses high in the troposphere, which is relatively low in the atmosphere.
As a runner begins to run a race, his or her respiration rate will increase. The runner begins to breathe deeper and at a rapid rate. In addition, the heart beats more quickly. This will result in more oxygen and nutrients delivered to the muscle cells. Which three body systems are working together to help out the muscle cells?
Answer:
respiratory system
circulatory system
digestive system
An object's velocity can be determined by what two factors?
*Its speed and direction
*Its acceleration and its mass
*Its displacement and distance
Answer:
option a is right answer
Explanation:
velocity= displacement/ time
1) ¿como se forma la capa de ozono y que la destuye?
2) ¿Cuál es la función del campo magnético terrestre, de que nos protege?
Answer:
Ozone molecules in the stratosphere are constantly being produced and destroyed by different types of UV radiation from the sun. ... However, scientists have discovered that certain chemicals react with UV radiation in the stratosphere, which causes them to break apart and release chlorine or bromine atoms.
Explanation:
i need help with this pleasee
Answer:
A The oldest rock layer will occur at the bottom of the sequence
Explanation:
Answer:
A) At the bottom of the sequence
Explanation:
If undisturbed, rock layers will build up with time, leaving the oldest ones on the bottom as new layers are on the top.
Landscapes with a faulted and folded surface bedrock structure, steep slopes, and high elevations are classified as
1)mountains
2)lowlands
3)plains
4)plateaus
Answer:
The correct answer is 4. Plateaus.
Explanation:
A plateau is a relatively flat, relatively high-lying part of the earth's surface that is wholly or almost wholly bounded by steeply sloping terrains. There is a pronounced slope on at least one side. The original flat area has mostly risen vertically as a whole due to geological factors. It may possibly have been cut by rivers, giving the impression of a hill or mountain landscape, but this is not it.
Answer:
1. Mountains
Explanation:
Water loss in plants is usually a result of transpiration. Which of the following best describes the path that water will follow from the root system to the shoot system utilizing the vascualr system?
A. to increase tolerance of environmental extremes
B. to accelerate the process of natural selection
C. to maintain homeostasis
D. to adapt to their environment
c to maintain homeostasis
It is c because it wants to regulate the amount of water in it's system
Pollutants concentrated in the northern part of the Gulf of Mexico often create a dead zone. A dead zone is an area of an aquatic ecosystem that does not have enough oxygen to support sea life. Some of the chemicals that cause the Gulf dead zone come from as far away as Montana. Use this information and what you know of United States geography to select the statement that BEST explains how pollutants from Montana have an impact in the Gulf of Mexico.
Answer and Explanation:
Hello. You did not present the answer options, but we can say that Montana pollutants have an impact on the Gulf of Mexico, due to the Mississippi River. That's because Montana and the Mississippi River are in the same hydrographic basin, which causes Montana pollutants to reach the Mississippi River, which takes these pollutants to the Gulf of Mexico, as the Mississippi River flows into the Gulf of Mexico.
Therefore, we can say that Montana pollutants are easily taken to the Gulf of Mexico and this impacts marine life in an influential way.
As an embryo developed, identical cells give rise to specialized cells that platform different functions.
Answer:
As an embryo develops, identical cells give rise to specialized cells that perform different functions.
Explanation:
As an embryo develops, the cells divide, giving new ones. As the cells grow and continue to reproduce themselves, they differentiate, becoming specialized cells. These cells will be located in a particular part of the embryo and will perform a specific function. The shape, size, and organelles vary according to their role.
Which statement best describes the breakdown of food in the digestive system?
Carbohydrate digestion starts in the stomach and protein digestion starts in the stomach.
Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach.
Carbohydrate digestion starts in the esophagus and protein digestion starts in the small intestine.
Carbohydrate digestion starts in the small intestine and protein digestion starts in the esophagus.
Answer:
Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach
Explanation:
Salivary amylase is an enzyme found in the mouth it breaks down starch (a carbohydrate) into maltose. protease is the enzyme that breaks down proteins and its found in the stomach .
Answer:
Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach
Explanation:
