Someone please help I promise to mark brianelst!!

Moon! The Apollo missions were to go to the moon hope this helps

The purpose of the Apollo space mission was to explore the Moon and conduct scientific experiments. The missions provided significant scientific and engineering knowledge about the Moon's geology, composition, and the effects of space travel on human health. Hence option B is correct.

The Apollo space missions were a series of space exploration missions conducted by NASA between 1961 and 1975 with the goal of landing humans on the Moon and returning them safely to Earth.

The Apollo program was designed to achieve President John F. Kennedy's goal of landing a man on the Moon by the end of the 1960s and was the third United States human spaceflight program.

They also served as a symbol of American technological and economic superiority during the Cold War. The program ended after the Apollo 17 mission in 1972, and since then, no humans have returned to the Moon.

Hence option B is correct.

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Answer: A scientific theory can't be changed because a theory will always be a theory.

Answer:

The correct answer will be option- supported evidence gets modified due to advancement in the technology.

Explanation:

A scientific theory is a well-substantiated idea which explains the natural phenomenon in depth.

The process of transformation of hypothesis into a theory depends on the experiments repeated by many scientists as well as the supported data provided by the experiments.

The theory is formed by the combination of the results or the facts of various hypothesis.  If the results get modified by the development of the technology, it can directly affect the theory and can lead to the modification of the theory.

Thus, supported evidence gets modified due to advancement in the technology is the correct answer.

The factor that would have the greatest effect on the flow of energy into an ecosystem is a large decrease in the amount of sunlight available.

The factor that would have the greatest effect on the flow of energy into an ecosystem is a large decrease in the amount of sunlight available. Sunlight is the ultimate source of energy in ecosystems, as it is converted into chemical energy through photosynthesis by autotrophs. A decrease in sunlight availability would result in a decrease in energy input to the ecosystem, affecting all trophic levels and leading to a decline in productivity and the number of organisms that can be supported in the ecosystem.

For example, in a forest ecosystem, if a large decrease in sunlight occurs due to cloud cover or deforestation, the productivity of plants would be reduced. This would lead to a decrease in the availability of food for herbivores, which would in turn impact the number of carnivores and decomposers in the ecosystem.

On the other hand, an increase in the number of carnivores or decomposers (options a and c) would not directly impact the flow of energy into an ecosystem, as they are consumers or decomposers respectively, and depend on the energy already present in the ecosystem. Similarly, a small decrease in the amount of minerals available (option d) would primarily affect nutrient availability and cycling, but not the overall flow of energy.

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The greatest effect on the flow of energy into an ecosystem comes from a large decrease in the amount of sunlight, as it drastically reduces the energy available at the base of the food chain, affecting all higher trophic levels. The correct option is b.

The factor that would have the greatest effect on the flow of energy into an ecosystem is b a large decrease in the amount of sunlight available. Sunlight is the primary source of energy for most ecosystems, driving photosynthesis in primary producers like plants, algae, and some bacteria. If the amount of sunlight is significantly reduced, the ability of these organisms to produce energy in the form of glucose is compromised, which negatively impacts the entire food web. Unlike other factors such as an increase in carnivores or decomposers, or a decrease in minerals, the reduction in sunlight directly affects the base of the energy pyramid, leading to a potential collapse of the entire ecosystem.

The energy cycle and the flow of energy through an ecosystem is a fundamental concept in biology, where energy from the sun is captured by producers and then transferred to consumers and decomposers. Only about 10% of the energy from one trophic level is passed to the next, highlighting how important the initial energy input is for the survival and productivity of the ecosystem.

Answer:

Biotechnology

Explanation:

1. Investigate correcting or replacing damaged genes

2. Genetically engineer bacteria to clean up toxic waste

3. the field of biology that works on rewriting and editing the genetic code

Answer: every time there is more information it causes the scientist to look for more information

Hope it helped!

Answer:

As explained below.

Explanation:

Answer: C). Natural selection is the process by which organisms with more beneficial traits are more likely to survive and reproduce.

Explanation:

Natural selection is a natural phenomena which involves differential survival and reproduction of individuals who have better phenotypic traits over others. Such organisms survive and reproduce in adverse environmental conditions. Thus nature selects the individuals with better traits.

Answer:

3 Ba(OH)2 + Fe2(SO4)3 = 2 Fe(OH)3 + 3 BaSO4

Explanation:

The reaction between Fe₂(SO₄)₃ (aq) and Ba(OH)₂ (aq) is a precipitation reaction that forms BaSO₄ (s) and Fe(OH)₃ (s) as precipitates. This double displacement reaction results in the formation of an insoluble salt, barium sulfate, along with iron(III) hydroxide.

The question is asking for the reaction that occurs when Fe₂(SO₄)₃ (aq) is mixed with Ba(OH)₂ (aq). This is a type of double displacement reaction, more specifically, a precipitation reaction where two soluble salts react in aqueous solution to form one or more insoluble products. The barium sulfate (BaSO₄) formed is an insoluble salt that precipitates out of the solution. The balanced chemical equation for this reaction is:
Fe₂(SO₄)₃ (aq) + 3Ba(OH)₂ (aq) → 3BaSO₄ (s) + 2Fe(OH)₃ (s)

Here, iron(III) hydroxide, Fe(OH)₃, also precipitates out of the solution. This reaction shows the formation of a precipitate when a solution of iron(III) sulfate is mixed with a solution of barium hydroxide.

B. Shifting their growing range towards the equator

Answer:

C. Ability to store water in leafy structures to prevent excess evaporation

Explanation:

Answer:

The scientist inferred that the storm was deep and turbulent.

Explanation:

Heavily rimed snowflakes are a sign of heavy and wet snow production.

Rimmed snowflakes are snowflakes which are partially or completely coated with rime.

Rime are tiny droplets of water that coat snowflakes.

When there is less rime around snowflakes then the snow shall be shallow but heavy coating as the scientist observed shall be heavy and wet.

Answer: the storm was deep and turbulent

Explanation:

Answer: Membrane proteins perform a variety of functions vital to the survival of organisms: Membrane receptor proteins relay signals between the cell's internal and external environments. Transport proteins move molecules and ions across the membrane. ... Cell adhesion molecules allow cells to identify each other and interact.

Cell membrane proteins, which include integral and peripheral proteins, play a crucial role in regulating substance movement into, out of, and within a cell. They serve as channels for substance transport, act as enzymes, or help differentiate cells from each other.

The function of membrane proteins in a cell is to regulate the movement of substances. These proteins are often embedded in the cell membrane and regulate the concentration of substances like ions, nutrients, and waste products inside the cell. There are primarily two types of proteins associated with the cell membrane: the integral proteins and the peripheral proteins.

Integral proteins are embedded in the membrane and serve as channels or pumps to move materials into or out of the cell. A common example of an integral protein would be a channel protein that selectively allows specific materials to pass into or out of the cell.

On the other hand, peripheral proteins are typically located on the inner or outer surface of the lipid bilayer. They can also be attached to the internal or external surface of an integral protein. These proteins perform a specific function for the cell. For instance, peripheral proteins on the surface of intestinal cells act as digestive enzymes to break down nutrients into sizes that are small enough to pass through the cells and into the bloodstream.

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The answer will be A

The best conclusion to make from this observation is A. Thus, option "A" is correct.

The smallest unit Of life on its own and that creates up all living organisms and tissues.

A cell has three major components: the cell membrane, the nucleus, and the cytoplasm.

Animal cells are eukaryotic cells which are surrounded by plasma membrane. It contains the nucleus, and the organelles that are membrane-bound.

Plant cells are the basic building block of plant life and they include the cell wall and central vacuole which work together to give the cell rigidity.

Thus, option "A" is correct.

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The answer is A.

the Hardy–Weinberg equilibrium states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences.

hope this helps:)

Answer:

(A) The population is evolving, and natural selection is favoring one allele over another.

Explanation:

According to Hardy-Weinberg equilibrium, the frequency (genetic variation) of population remains stable from one generation to the next generation.

The population will follow Hardy-Weinberg equilibrium  if the population size is large, random mating, no natural selection , absence of mutation and gene flow.

If the population is evolving and natural selection favors an allele over another, this scenario will prevent that population to follow Hardy-Weinberg equilibrium.  

Thus, the correct answer is option(A).

Answer:

In item A, two air masses form a boundary; whereas, in item B, warm air rises above cold air.

Explanation:

When warm and cold air masses meet in the opposite direction, they form a boundary but warm air would still rise above the cold air, and cold air would stay below the warm air.

On the other hand, when both air masses move in the same direction, warm air would stay above the cold air and they both will move forward.

Answer:

2 and 4.

Explanation:

Frostbite is the causing of parts of your body getting to cold. Hypothermia is another cause of the cold. Both of the other ones are causes of heat

Answer:

Brain, neurons and spinal cord

Answer:

braiin nerons spinal cord

Explanation:

D

Paleontologists study and prove the change in form and functions of organisms throughout time in the fossil record.

The statement ''it shows that the form and structure of groups of organisms have changed over time' best explains how the fossil record provides evidence of evolution (Option D).

In conclusion, the statement ''it shows that the form and structure of groups of organisms have changed over time' best explains how the fossil record provides evidence of evolution (Option D).

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Answer:

Explanation:

With a young, adolescent brain, you can easily be guided or persuaded to believe or do such things as the people around you. What the people around you do, good or not, it can affect you and make you believe from a young age that that is what you should be doing or believing in life. hope this helps

Ok so I don’t know if you want me to answer for myself, please specify, thanks!

we need more information to solve this problem maybe a picture ?

Where’s the picture? :/

Answer:

Endangered species help us learn more about the species and how to protect them, as well as learning how to protect current species from becoming endangered.

Hope this helps :)   - Hazle

Answer:

the energy needed is carbon dioxide

This energy-carrying molecule is needed to produce glucose. This molecule is ATP. Thus, option A is correct.

The light-independent (dark) reaction of photosynthesis is the second chemical reaction of photosynthesis that takes place in the stroma within the chloroplast.

Light-Dependent Reactions of Photosynthesis. The first major set of processes in photosynthesis, in which light energy is initially converted into chemical energy as ATP and NADPH, takes place across the chloroplast thylakoid membranes, between the chloroplast stroma and the thylakoid space.

These electrons move through structures in chloroplasts and by chemiosmosis, make ATP. The hydrogen is converted to NADPH which is then used in the light-independent reactions. Oxygen diffuses out of the plant as a waste product of photosynthesis. This all happens in the grana thylakoid of chloroplasts.

Therefore, This reaction uses the products of light dependent reactions which are the energy carrying molecule (ATP) and NADPH (which provides electron) to convert carbon dioxide and other compounds into glucose.

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Answer:

D.

Explanation:

Usage-

Oil (Petroleum) - 38%

Coal - 24%

Natural Gas - 23%

Answer: Hope I help!!!!!b:D

Explanation:  Well, things eat the algae, and if algae is taken from an ecosystem, then it could unravel. Another thing, depending on the species, algae helps break things down like waste and clean the water!

Answer:

The harvest of algae allows them to be used for food and medicine production, as they are a source of proteins, vitamins and minerals. In addition, this harvest reduces the risks of the process called "red tide", which occurs when the algae population becomes so large in the aquatic environment, that it ends up throwing toxic elements on it, which negatively affects marine life.

The downside of harvesting algae is that harvesting can be done in a way that drastically reduces the population of algae in the aquatic environment and harms animals that have algae as their main food source. In addition, algae are responsible for much of the oxygen in the atmosphere, when harvesting it aggressively, it can impair the concentration of oxygen in the atmosphere. To avoid these problems, it is necessary to harvest the algae in a conscious and sustainable way.

Explanation:

Algae can be described as eukaryotic, autotrophic organisms that can be unicellular or multicellular, present in most rivers and oceans. Despite being very similar to plants, algae are not considered plants, but a totally different and intriguing organism. The algae make photosynthesis and are largely responsible for the oxygen available for our breathing.

Oxygen levels start to decline from 35 percent down to today's levels D. After the Carboniferous period

Oxygen levels started to decline from 35 percent down to today's levels about 95 million years ago.

The Carboniferous is a geologic period and system that spans 60 million years from the end of the Devonian Period 358.9 million years ago, to the beginning of the Permian Period, 298.9 Mya.  The Carboniferous is occurred 358.9 (+/- 0.4) million years ago - 298.9 (+/- 0.15) million years ago

Whereas the Permian spans 47 million years from the end of the Carboniferous period 298.9 million years ago, to the beginning of the Triassic period 251.902 Mya. It occurred 298.9 (+/- 0.15) million years ago - 251.902 (+/- 0.024) million years ago

The Triassic spans 50.6 million years from the end of the Permian Period 251.9 million years ago, to the beginning of the Jurassic Period 201.3 Mya. Triassic occurred 251.902 (+/- 0.024) million years ago - 201.3 (+/- 0.2) million years ago

The Silurian is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at 443.8 million years ago, to the beginning of the Devonian Period, 419.2 Mya. It occured 443.8 (+/- 1.5) million years ago - 419.2 (+/- 3.2) million years ago

Therefore, D. After the Carboniferous period, oxygen levels started to decline from 35 percent down to today's levels

Grade:  9

Subject:  biology

Chapter:  period

Keywords: oxygen levels, the Silurian period, the Carboniferous period, the Permian period, the Triassic period

Answer: Precipitation

Explanation: Hope this helps! :) ~Zane

Answer: Precipitation.

Explanation:

The amount of evaporation is equal to the amount of precipitation. The water can fall on earth from clouds in many different forms.

The water from the large water bodies are evaporated and condensed in the clouds.

These water falls on the earth in the form of rain, sleet or snow. These are the different forms by which the water can precipitate on earth.

Answer:

Take consistent amounts of their saliva samples with varying amounts of starch . (A.)

Take consistent amounts of their saliva samples with varying amounts of starch.

Hence, A option is correct.

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Answer:

snake

Explanation:

Blood pressure measures the pressure on the arteries and is a key indicator of cardiovascular health. High blood pressure can lead to numerous health issues such as heart disease, stroke and kidney disease. Regular monitoring is vital for maintaining healthy blood pressure levels.

The correct answer is A) Blood pressure measures the pressure on the arteries and can be an indicator of an unhealthy cardiovascular system. Blood pressure is defined by the force that blood exerts on the walls of the arteries as it is pumped by the heart. When blood pressure is too high, it can put extra strain on the arteries and the heart, leading to conditions like heart disease, stroke, kidney disease, and other health problems. That's why it is important to regularly monitor blood pressure.

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Answer: Not have breathable air.

Explanation:

Because they rely on their dense fur for insulation from the chilly ocean water, sea otters are particularly vulnerable to the detrimental effects of an oil spill. If a sea otter swims into an oil spill, its fur becomes soiled and loses its insulating qualities, allowing water to penetrate to its skin, causing hypothermia and ultimately, death.

hope this helps?

Soiled or clumped fur in an otter can compromise its insulation by losing trapped air bubbles, increasing the risk of reaching thermal equilibrium with cold water and leading to potential hypothermia.

When the fur of an otter is soiled or clumped, it can lose its insulating properties. The otter's fur is special because it traps air bubbles, which provide insulation against the cold water. If the fur becomes clumped or soiled, these air bubbles can be lost, making the fur less effective at insulating the otter. Without the trapped air, the otter could reach thermal equilibrium with the cold water more quickly, which is dangerous as it could lead to hypothermia and be life-threatening for the animal. Furthermore, otters have hydrophobic lipids in their fur that help to protect them from the elements by repelling water and keeping their fur from getting waterlogged.

23 chromosomes from each parent, which means 46 chromosomes in total