When scientists are doing research to determine how the environment affects a life form, it often takes many years to reach a conclusion. Why do you think that is the case?A. Many environmental factors must be considered (water, light, and temperature were just three that were investigated in this simulation).
B. Many tests must be performed because variables need to be tested one at a time (first test for water effects, then test for light effects, etc.).
C. Some effects take a long time to become noticed, so the experiments often have to take place over long periods of time.
D. All of the above.

Answers

Answer 1
Answer:

Answer:

The correct answer is option D, that is, all of the above.

Explanation:

While performing an experiment to find the effects of the environment on a life form there is a need to consider a lot of factors as many factors in tandem can affect the species in a mentioned scenario. While testing some of the variables would not be seemed obvious at first instance, therefore, in the first look or test, the outcomes are generally inconclusive. At the same time, there is a need for each of the variables to be tested carefully, and also some of the variables may consume more time in order to sound conclusive.

Answer 2
Answer:           D. All of the above 


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Why is the fusion reaction not currently used to produce energy, especially as it is a "clean" form of energy that does not create radioactive or nuclear byproducts?A- There are currently not enough fuels for fusion reactions.
B- Fusion reactions are highly endothermic, making them dangerous.
C- Fusion reactions do not yet produce enough energy.
D- The heat it takes to start a fusion reaction is too high to contain.

Answers

B. Endothermic the dangerous one .

What level of organization is the human heart?

Answers

the levels of organization are:
atoms-molecules-cells-tissue-organ-organ system-organism

the human heart is an organ, or the fifth level of organization.  :) hope I helped you out!

Which group of animal is the closest related to reptiles?A: primates
B: cetaceans
C: marsupials
S: monotremes

Answers

S: monotremes................................

15. An investigation was carried out and the resultsare shown below. Substance X resulted from a
metabolic process that produces ATP in yeast (a
single-celled fungus)
Glass
apparatus
Several
hours later
Seal
Sugar
yeast
and water
Which statement best describes substance X?
O
RL is oxygen released by protein synthesis.
(2) It is glucose that was produced in
photosynthesis
(3) It is starch that was produced during digestion
(4) lis carbon dioxide released by respiration

Answers

Answer:

The correct option is D. It is carbon dioxide released by respiration.

Explanation:

The process by which ATP is abundantly formed in organisms is termed as cellular respiration. Cellular respiration can be described as a process in which carbon dioxide and water are produced from glucose and oxygen. ATP molecules are synthesized by this process which are used for cellular activities.

Hence, the substance X in the investigation shows carbon dioxide which was produced when the yeast cells began to respire. Yeast cells can respire either in the presence of oxygen or without oxygen.

What are the 3 things plants must be able to do

Answers

Answer:

plants need sunlight, water, and carbon dioxide to live.

Explanation:

Make a list of the things that make a hurricane different from a regular thunderstorm.

Answers

Answer:

The biggest difference is that hurricanes need a warm moist water to keep on going and never forms over land, while thunderstorms can form over land or water. Tornadoes are also associated with cumulonimbus clouds.

Explanation:

A hurricane is a swirling, low-pressure system that develops over the tropics with sustained winds that have reached at least 74 miles per hour.

Warm, moist air near the ocean's surface rises upward, cools, and condenses, forming clouds. With less air than before at the surface, the pressure drops there. Because air tends to move from high to low pressure, moist air from surrounding areas flows inward toward the low-pressure spot, creating winds. This air is warmed by the ocean's heat and the heat released from condensation, so it rises. This starts a process of warm air rising and forming clouds and surrounding air swirling in to take its place. Before long, you have a system of clouds and winds that begins to rotate as a result of the Coriolis effect, a type of force that causes rotational or cyclonic weather systems.

Hurricanes are the most dangerous when there is a big storm surge, which is a wave of seawater that floods communities. Some surges can reach depths of 20 feet and sweep away homes, cars, and even people.

A thunderstorm is produced by a cumulonimbus cloud, or thunderhead, that includes rain showers, lightning, and thunder.

They start when the sun heats the earth's surface and warms the layer of air above it. This warmed air rises and transfers heat to the upper levels of the atmosphere. As the air travels upward, it cools and the water vapor contained within it condenses to form liquid cloud droplets. As air continually travels aloft in this way, the cloud grows upward in the atmosphere, eventually reaching altitudes where the temperature is below freezing. Some of the cloud droplets freeze into ice particles, while others remain "supercooled." When these collide, they pick up electric charges from one another; when enough of those collisions happen, the big buildup of charge discharges, creating lightning.

Thunderstorms are most hazardous when rain decreases visibility, hail falls, lightning strikes or tornadoes develop.