A well-known cell-survival pathway involves a kinase called _______ that is activated by the _______, leading to a larger chance that the cell will survive a stimulus that would normally lead to its destruction

Answer:

It creates genetic diversity within a species. In asexual reproduction, a direct copy, a clone, is produced.

Explanation:

Answer:

In eukaryotes, photosynthesis occurs in the chloroplasts of the cell. However, prokaryotes do not have membrane-bound organelles so they don't have chloroplasts. In prokaryotic cells, photosynthesis occurs in the infoldings of the cell membrane, which contain chlorophyll.

According to the information we can infer that in general the number of species has increased.

Based on the information in the graph, we can conclude that over the years the number of species has increased. In the case of grasses, it went from having 32 species to having 35. In the case of trees, it went from having 0 to having 24, and in the case of shrubs, it went from having 0 to having 18.

In the row that shows the total number of species, it went from having 32 to having 77, which means that it doubled the number of species in this period of time.

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Answer:

Not enough information

Explanation:

You haven't given any reference. However, they are referred to as the building blocks of life because, for example, in Prokaryotic cells, which are unicellular, everything required for them to survive and reproduce is all found within a single cell.

Answer:

Cells are the basic unit of life. Thus, Cells are like building blocks of life because all living organisms start off as cells.

Explanation:

Answer:

The way calcitonin and parathyroid hormone maintain homeostasis in the body is calcitonin stimulates the kidneys to excrete calcium when calcium levels are too high, while parathyroid hormone stimulates the kidneys to absorb calcium when calcium levels are too low (option A).

Explanation:

Calcitonin and parathyroid hormone have a role in maintaining the balance of calcium and phosphorus concentrations, but their effects are opposite.

The reduction of calcium levels promoted by calcitonin is based on:

On the other hand, parathyroid hormone increases calcium levels by performing the opposite effect of calcitonin:

Both mechanisms contribute to maintain the levels of calcium, when it is high or low in the organism, collaborating with the maintenance of the homeostasis.

The other options are not acceptable because they do not describe the correct function of calcitonin and parathyroid hormone.

Answer:

the probability to have a 4 toed baby is 0% chance and the probability for a normal toed baby is 100%

Explanation:

Some causes of the background are; Gradual environmental change, Predation, Genetics, and causes of mass extinction are; Catastrophic events, environmental change, Oceanic changes, and Human activities.

Causes of background extinction; Changes in the environment, such as climate change or geological events, can cause slow, long-term changes that make certain species less adapted to their environment.

The introduction of new predators or changes in predator-prey relationships can also lead to the extinction of some species.

Genetic factors can play a role in the extinction of species, particularly in small populations where genetic diversity is low.

Causes of mass extinction; Mass extinctions can be caused by catastrophic events, such as asteroid impacts, massive volcanic eruptions, or global climate change.

Rapid changes in the environment, such as sudden climate change or sea level change, can cause species to become extinct.

Changes in the ocean, such as ocean acidification or anoxia, can lead to the extinction of marine species.

Human activities such as overhunting, habitat destruction, pollution, and introduction of invasive species can also contribute to mass extinction events.

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Answer: atoms and molecules.

Explanation:

Answer:

The light part of the Moon appeared to get smaller over time because of the change in the relative position of the Moon, the Sun, and the Earth. This is known as the lunar phase. The changing appearance of the Moon from the Earth's perspective is caused by the Moon's orbit around the Earth and the position of the Moon and Sun relative to the Earth. The Moon's phases are caused by the angle between the Moon, Earth, and Sun changing, as the Moon orbits the Earth. When the Moon is between the Earth and the Sun, the side facing the Earth is not illuminated by sunlight, so it appears dark, and this is called a new moon. When the Moon is on the opposite side of the Earth from the Sun, the entire side of the Moon facing the Earth is illuminated by sunlight, so it appears full, and this is called a full moon. As the Moon moves in its orbit, the angle between the Sun, Earth, and Moon changes, causing the illuminated portion of the Moon visible from the Earth to change, leading to different lunar phases.

The recovery of the pine tree population may have been uneven across the burned areas, with some regions experiencing more successful regeneration than others.

A. The wildfire of 1988 in the Yellowstone region had a significant impact on the populations of birds and animals. The intense and widespread nature of the fire resulted in the destruction of vast areas of habitat and vegetation, leading to immediate and long-term consequences for wildlife. Research conducted after the fire indicates that certain bird species, such as the Black-backed Woodpecker and Mountain Bluebird, benefited from the increased availability of post-fire habitat, which provided favorable conditions for nesting and foraging. However, many other bird species, especially those that relied on mature forests and understory vegetation, experienced a decline in population numbers due to the loss of suitable habitat.

Similarly, animal populations were also affected. Large mammals such as elk and deer faced challenges in finding adequate food sources as their grazing grounds were consumed by the fire. However, some small mammal species, like mice and voles, benefited from the regrowth of vegetation after the fire. Predatory animals, such as coyotes and wolves, experienced changes in prey availability and distribution, which likely impacted their populations.

B. Predicting the changes in bird and animal populations from 1988 to 2000 is challenging without specific data from that time period. However, considering the regenerative nature of ecosystems and the potential for post-fire habitat recovery, it is plausible that certain bird and animal populations gradually rebounded during this period. Species that rely on early-successional habitat, such as the Black-backed Woodpecker, may have experienced population growth as the burned areas provided suitable conditions for nesting and foraging. Conversely, bird and animal species dependent on mature forests may have continued to face challenges in finding suitable habitat, potentially leading to population declines or slower recovery rates.

C. The 1988 wildfire had a notable effect on the pine tree population in the Yellowstone region from 1988 to 2000. The fire resulted in the widespread destruction of pine trees, particularly the lodgepole pine, which dominates the region's forests. However, fires also play a crucial role in the natural regeneration of forests. Following the fire, lodgepole pine forests underwent a process called serotiny, where the heat from the fire triggers the release of the tree's seeds. This phenomenon led to a surge in pine tree regeneration in the years immediately following the fire.

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The function of the plant tissues are as follows;

Plant tissues are groups of cells in a plant that perform a specific function.

Dermal, vascular, and ground tissue are the three main categories into which they can be divided.

The plant's dermal tissue covers and shields it.

The ground tissue aids in storing water and sugars act as a site for photosynthesis and act as a supporting matrix for the vascular tissue.

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Answer:

microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen (inorganic compounds usable by plants). More than 90 percent of all nitrogen fixation is effected by these organisms, which thus play an important role in the nitrogen cycle.

Answer:

The correct answer is - they may not be able to survive at such a temperature.

Explanation:

A Cold front is a weather change when a cooler air mass moves into warmer air that leads to a sudden drop in temperature following by the cyclone, heavy rainfall and hail.

These sudden changes and heavy rain with storms and cyclones can limit the population growth of newborn offspring as they may not able to survive in such a sudden temperature drop.

Answer:

adaptation

Explan

Answer: adaptation

Explanation:

The statement that is correct regarding the troposphere and the stratosphere is The ozone layer is in the stratosphere. The third one is true. The ozone layer acts as a protection layer that prevents UV light.

The atmosphere is divided into many layers, with the troposphere close to the earth and the thermosphere toward the sun, as shown in the diagram. in between two layers, such as the tropopause, which is present between the troposphere and the stratosphere. In the stratosphere, the ozone layer is present, which prevents the sun's UV rays from falling on the earth, and the troposphere is the region where the clouds are formed.

Hence, the correct answer is the third option, which is "The ozone layer is in the stratosphere."

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Answer:

Cloud formation is directly related to evaporation

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Explanation:

Answer:

Cork formation is a type of secondary growth that occurs in the stems and roots of woody plants. Gum formation, on the other hand, is a type of defense mechanism that occurs in response to injury or infection.

Explanation:

Answer:

Force has units of Netwons

For purposes of making a prediction, the underlying reason for a correlation does not matter. As long as the correlation is stable–lasting into the future–one can use it to make predictions. What a correlation does not tell you is why two things tend to go together.

Answer:

biconcave shape

Explanation:

1. Red blood cell has a biconcave shape while white blood cell is irregularly shaped. 2. Red blood cell does not have a nucleus so as to transport more oxygen while white blood cell has a nucleus.

580 psi is equal to 4 megapascals.

To convert 580 psi to megapascals, we need to use the conversion factor 1 MPa = 145 psi. We can set up an algebraic equation to solve for the value of megapascals:
x MPa = 580 psi * (1 MPa/145 psi)
Simplifying the equation, we can cancel out the units of psi, leaving only the units of MPa:
x MPa = 4 MPa
It is important to note that when converting between units of pressure, it is necessary to use conversion factors to ensure that the values are accurately represented in the desired units. In this case, knowing the conversion factor of 1 MPa = 145 psi allows us to convert the given value of 580 psi to the equivalent value in megapascals. Using algebraic equations can help to simplify the conversion process and ensure that the calculations are correct.

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Answer:

alteration of the corpus luteum results in early pregnancy loss (early embryonic death)

Explanation:

The corpus luteum is a temporary gland structure in the female reproductive system (formed in the ovary that released its ovum), which is involved in the secretion of progesterone hormone and also moderate levels of other hormones, i.e., estradiol and inhibin A. After 7-10 weeks of gestation, this structure (corpus luteum) is replaced by the placenta that produces progesterone throughout the rest of the pregnancy. Normal progesterone levels (i.e., between 10 and 20 ng/ml) are required prior to embryo implantation, thereby alteration of the corpus luteum function will lead to disturbance of maternal recognition of pregnancy because pregnancy does not occur until the fertilized egg implants into the uterus.

English Version:

Viewing it from the safe distance of 230 million light-years, the astronomers say in the paper published in The Astrophysical Journal, that this fact makes it seem as though the supermassive black hole has been disturbed. The reason for this is unknown, though there are guesses.

Spanish Version:

Viéndolo desde la distancia segura de 230 millones de años luz, los astrónomos dicen en el artículo publicado en The Astrophysical Journal, que este hecho hace que parezca que el agujero negro supermasivo ha sido perturbado. Se desconoce la razón de esto, aunque hay conjeturas.

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Answer: Your guess is right

Explanation: Other reactions release energy, so forming sucrose from glucose and fructose is endoergic. Also a water molecule is formed.

When two molecules form new molecule, order is increased and energy is needed that. IT could also possible to use standard energies of formation.