If a tall stem is a dominant characteristic, in which case is the character of tall expressed

A: when both alleles contain instructions for tall

B: when at least one alleles contains instructions for tall

C. when at least one parent is tall

D:when both parents are tall

Answer:

A

Explanation:

I Big Bran

The statement (a) organisms that existed over a limited period describes index fossils.

What are index fossils?

Index fossils are fossils used to define and identify geologic periods. Index fossils must have a short vertical range, wide geographic distribution and rapid evolutionary trends.

Moreover, index fossils are used to define geological periods. These fossils can be defined as "commonly found, widely distributed fossils that are limited in time span." If one finds an index fossil in a given layer, then one has bounds on the age of the layer. Using index fossils, the geological periods are defined.

Therefore, a good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms.

Learn more about index fossils:

https://brainly.com/question/20903510

#SPJ2

Wrong. It's human activity

The answer is C. human activity

The spin of a planet or moon as seen from above a planet's pole is termed its rotation, which occurs around an imaginary line called the axis.

The spin of a planet or moon as seen from above a planet's pole is called its rotation. When we think of the Earth, for example, we can imagine a line passing through the center of the planet that goes through both the North Pole and the South Pole. This imaginary line is known as the axis. The movement of Earth around its axis, reminiscent of how a top spins around its spindle, is what we refer to as the Earth's rotation.

Every planet and moon in our solar system undergoes this spinning movement, which plays a crucial role in defining day and night cycles on these celestial bodies. The position of the axis in relation to the celestial sphere also influences the visibility of stars and other celestial objects from the Earth's surface, with the axis pointing towards the celestial poles.

Dwarf planets are worlds that are too small to be considered full-fledged planets, but too large to fall into smaller categories.

In recent years, there's been a lot of hubbub about Pluto losing its status as one of the planets of the solar system. Pluto is no longer considered the ninth planet in the series of major planetary objects, but instead is now just one of the many so-called "dwarf planets." The debate started anew after the New Horizons mission passed by Pluto in 2015, revealing a world of surprising geological complexity. As of 2017, delegates from the mission are trying to get Pluto's planethood status back. 

Astronomers estimate that there could be as many as 200 dwarf planets in the solar system and the Kuiper Belt. But the differences between planets and dwarf planets may not be obvious at first. 

The International Astronomical Union defines a planet as being in orbit around the sun, has enough gravity to pull its mass into a rounded shape (hydrostatic equilibrium), and has cleared its orbit of other, smaller objects. This last criterion is the point at which planets and dwarf planets differ. A planet's gravity either attracts or pushes away the smaller bodies that would otherwise intersect its orbit; the gravity of a dwarf planet is not sufficient to make this happen. [Meet the Dwarf Planets of the Solar System]

As of 2014, the IAU recognizes five named dwarf planets: Ceres, Pluto, Eris, Haumea, and Makemake. But those aren't the only ones. Other solar system bodies that are possibly dwarf planets include Sedna and Quaoar, small worlds far beyond Pluto's orbit, and 2012 VP113, an object that is thought to have one of the most distant orbits found beyond the known edge of our solar system. The object DeeDee could also be a dwarf planet, according to observations made in 2017. According to NASA, scientists think that there may be more than a hundred dwarf planets awaiting discovery.

However, the debate over the status of dwarf planets, particularly Pluto, remains a hot topic. The primary concern stems from the requirement for a planet to clear out its local neighborhood.

"In no other branch of science am I familiar with something that absurd," New Horizons principle investigator Alan Stern told Space.com in 2011. "A river is a river, independent of whether there are other rivers nearby. In science, we call things what they are based on their attributes, not what they're next to."

Is a dwarf planet a separate entity from a planet, or simply another classification? The question may not be settled in the near future.

Answer:

can cause people to reject unfamiliar things

Explanation:

Mere-exposure effect is a concept in psychology which explains the effect of exposure to a particular thing, situation or person. According to it people tend to get comfortable around things they are exposed to more. This can lead them to reject other alternative options. The effect has been observed in various instances like paintings, sounds, Chinese characters etc. With respect to human relationship it means the more a person is exposed to someone, the more they like them. Mere exposure effect can lead to development of aversion to unfamiliar things in people.

Answer:

it is c silver

Explanation:

because

1) the S-phase before mitosis nd meiosis

2) the number of chromosomes only  doubles when two haploid gametes form to produce a diploid zygote. for example: in humans, the sperm cells and eggs have 23 chromosomes , which is the haploid number

The steps are:

1. The eye cells (photoreceptors) receive light signal.

2. Transduction of light to a neural signal (nerve impulse)

3. Transmission of nerve impulses to the brain via optic nerve (afferent nerve)

4. Brain translates the signal  

5. Nerve impulses is transmitted from the brain to the muscles via efferent nerves.

Jorge's eye cells communicate with his muscle cells through a series of steps beginning with the activation of photoreceptors in the retina, conversion of light into electrical impulses, signal processing in the brain, and finally, transmission of signals to the muscles to initiate movement towards the light.

When Jorge wants to move towards light, a complex process involving the eyes and the nervous system takes place. Once light enters his eyes and strikes the retina, it passes through several layers of neuronal cells before activating the photoreceptors, specifically known as rods and cones. These photoreceptors convert the light into electrical impulses.

These impulses travel through the retinal layers to the optic nerve, then continue to the thalamus, and finally reach the primary visual cortex in the brain. Here, the brain processes information about the light, including its orientation and movement, and determines the required response.

The brain sends signals via motor neurons to the muscle cells, which initiate the physical action of walking towards the light. Thus, eye cells communicate with muscle cells through a series of electrical and chemical messages facilitated by the nervous system.

Answer: A) The use of freon and CFC spray propellants.

Chlorofluorocarbons (CFCs) are compounds  that are used as propellents in the spray cans and in refrigerators. These are manufactured under the trade name of Freon. Freon is a CFC that contains fluoride as a main ingredient. These CFCs are released in the atmosphere and they accumulate in the stratospheric layer. The ozone layer is present in the stratosphere shields the Earth from the harmful ultraviolet rays. The CFC molecules breaks down by the ultra violet radiations. The released chlorine atoms or fluorine atoms reacts with the ozone molecules resulting in the removal of ozone layer from the stratosphere. This is called as ozone layer depletion.  

Final answer:

Among the given options of light wave, matter wave, sound wave, and water wave, light waves are the fastest, traveling at a constant speed of c (approximately 3 x 10⁸ m/s) in a vacuum, regardless of the observer's frame of reference.

Explanation:

The student has asked, "Which of the following waves travels the fastest?" The options given are light wave, matter wave, sound wave, and water wave. In physics, these waves travel at different speeds within their respective mediums.

Light waves are known to travel at a constant speed, denoted as c, which is approximately 3 x 10⁸ meters per second in a vacuum and is the fastest speed in the universe. This means that, regardless of the observer's frame of reference, light will always travel at this speed, which makes it the fastest wave among the options provided.

On the other hand, sound waves travel at varying speeds depending on the medium. In air at 20°C, sound waves travel at about 343.5 m/s, which is significantly slower than light. Water waves travel even more slowly, with typical speeds of just a few meters per second. As for matter waves, these are subject to the properties of the particles that constitute them and the medium they're traveling through, making them generally slower than light waves as well.

Therefore, among the given options, light waves travel the fastest.

Viruses cannot reproduce by themselves. They rely on host cells to replicate their genes and proteins, essentially taking over the host cell's reproductive mechanisms.

Viruses are unique in that they cannot reproduce on their own. They depend on the cells of a 'host' organism for their reproduction. The process typically begins when a virus attaches to a host cell and injects its genetic material (either DNA or RNA) into the cell. This viral genetic material then uses the host cell's machinery to replicate its own genes and proteins. These new viral components are then assembled into new viruses, which are released from the host cell to infect other cells. This process effectively takes control of the host cell's reproductive mechanisms for the benefit of the virus, often to the detriment of the host.

https://brainly.com/question/32828566

#SPJ6

A procedure humans may have used to produce broccoli which has small flowers and thick stems is called selective breeding.

Selective breeding may be defined as a type of breeding through which parents with specific attributes are utilized and bred together in order to produce offspring with more desirable characteristics. This type of breeding is also known as artificial selection.

According to the context of this question, humans generally used this methodology of artificial selection and bred plants and animals for thousands of years. This mode of breeding is generally utilized in order to yield higher crop productivity with disease-resistant plants. Apart from this, other traits are also desirable with respect to condition.

Therefore, selective breeding is a procedure that humans may used to produce broccoli which has small flowers and thick stems.

To learn more about Artificial selection, refer to the link:

https://brainly.com/question/14128683

#SPJ3

The organisms that live in a Prairie ecosystem may include Grass and mushroom.

An ecosystem may be defined as an area or place where individuals of different species live together and interact with one another for the purpose of food, shelter, space, and mating partner.

A Prairie ecosystem may be characterized as a unique type of ecosystem that is significantly dominated by grasses and other non-woody plants called forbs.

Some of the animals that are present in the same ecosystem may include Bison, jackrabbits, Owls, Coyotes, Rattlesnakes, etc. Additionally, there are many fungi, such as mushrooms, bacteria, insects, and grasshoppers may also present.

Therefore, the organisms that live in a Prairie ecosystem may include Grass and mushroom.

To learn more about Prairie ecosystems, refer to the link:

https://brainly.com/question/550070

#SPJ6

Answer: cyanobacteria

Explanation:

Answer:

De-salinization of ocean water

Explanation:

A process which will be more costly a terms of energy consumption, men work, and is neither efficient or environmentally 'friendly' is obtaining clean amount of water to drinking purposes from the ocean or sea water. As the process will require more machinery and it will be much costly for the public to purchase.

The drinkable water or fresh amount required for a spending a healthy life can be obtained from any river or clean reservoir around the region, so, why waste time and money, along with the most important factor energy.

Answer:

Adds More ATP

The coding region of DNA is responsible for encoding proteins through a process called translation.

A DNA sequence responsible for coding a protein is called the coding region. Within the coding region, the nucleotide sequence of the gene is translated into the amino acid sequence of the protein. This process is known as translation and is directed by the genetic code, which consists of triplet codons within the mRNA sequence that correspond to specific amino acids.

https://brainly.com/question/8898475

#SPJ12

Answer:

I think they might be in the same kingdom

Explanation:

Temperature and salinity fundamentally influence deep water currents by affecting the density of seawater, where colder and saltier water sinks, driving the global thermohaline circulation. This process regulates climate, transports nutrients, and supports deep sea ecosystems.

The deep currents of the ocean, known as thermohaline circulation, are primarily driven by variations in water density, which is a direct result of changes in temperature and salinity. This process is essential in distributing heat and nutrients across the globe, influencing both marine ecosystems and climate patterns.

Temperature and salinity play a crucial role in determining the density of seawater. Colder water and higher salinity levels increase seawater density, causing it to sink and create deep ocean currents. Conversely, warmer, less saline water has a lower density and tends to remain on the surface.

Deep currents emerge as cold, highly saline water is produced near the poles, where seawater freezes, leaving behind saltier water that sinks into the ocean depths. This sinking water, known as downwelling, then travels across the ocean basins, mixing with less dense water. As dense water sinks, it displaces the water below, contributing to the global-scale circulation pattern known as the thermohaline circulation.

These currents are vital for the transport of nutrients and oxygen, supporting deep sea ecosystems. Additionally, they play a significant role in regulating the Earth's climate by transporting heat from the equator towards the poles. The interaction between temperature, salinity, and ocean currents also affects coastal climates and marine biodiversity.

In summary, temperature and salinity are fundamental in shaping the characteristics and movement of deep water currents through their influence on water density. These deep currents are not only crucial for the marine life but also significantly impact global climate and weather patterns.