can some on help me with the matter unit test i realy need help and my sister isnt helping me plz help
Of course! What do you need help with specifically?
Angela wants to conduct an experiment to test how different types of music impact the growth of plants. What should Angela use as constant variables in the experiment?
For Angela's experiment, the constant variables should be kept the same throughout the experiment. That way, any differences in plant growth can be attributed to the variable being tested - the type of music.
Here are some examples of constant variables that Angela should consider:
1. Type of plant: Angela should use the same type of plant throughout the experiment, so that any differences in growth can be attributed to the type of music rather than the plant species.
2. Amount of water: Angela should water all of the plants with the same amount of water at the same time each day.
3. Amount of sunlight: Angela should place all of the plants in the same location with the same amount of sunlight exposure.
4. Soil type: Angela should use the same type of soil for all of the plants.
By keeping these variables constant, Angela can ensure that any differences in plant growth can be attributed to the variable she is testing - the type of music.
Cellular respiration is a chemical process in cells that releases energy the cells need to function. What statement below is true about this reaction.(1 point)
Responses
The process of cellular respiration releases energy because the energy that is released when the bonds are formed in CO2 and water is equal to the energy required to break the bonds of sugar and oxygen.
The process of cellular respiration releases energy because the energy that is released when the bonds are formed in CO, 2, and water is equal to the energy required to break the bonds of sugar and oxygen.
The process of cellular respiration releases energy because the energy that is released when the bonds are formed in CO2 and water is less than the energy required to break the bonds of sugar and oxygen.
The process of cellular respiration releases energy because the energy that is released when the bonds are formed in CO, 2, and water is less than the energy required to break the bonds of sugar and oxygen.
The process of cellular respiration releases energy because the energy that is released when the bonds that are formed in CO2 and water is lost when bonds of glucose and oxygen are broken.
The process of cellular respiration releases energy because the energy that is released when the bonds that are formed in CO, 2, and water is lost when bonds of glucose and oxygen are broken.
The process of cellular respiration releases energy because the energy that is released when the bonds are formed in CO2 and water is greater than the energy required to break the bonds of sugar and oxygen.
The process of cellular respiration releases energy because the energy that is released when the bonds are formed in CO, 2, and water is greater than the energy required to break the bonds of sugar and oxygen.
The process of cellular respiration releases energy because the energy that is released when the bonds are formed in CO2 and water is less than the energy required to break the bonds of sugar and oxygen.
In a grassland ecosystem, grass is the producer. The grass is eaten by rabbits. The rabbits are eaten by foxes. And the foxes are eaten by hawks. If the grass produces 83,721 kcalm2yr of energy, how much energy will the apex predator receive?(1 point)
Responses
83.721 kcalm2yr83.721 kcalm2yr
837.21 kcalm2yr837.21 kcalm2yr
8.3721 kcalm2yr8.3721 kcalm2yr
8,372.1 kcalm2yr
The energy transferred between different trophic levels in an ecosystem follows the 10% rule, where only 10% of the energy is transferred from one level to the next. Therefore, the apex predator (hawk) will receive significantly less energy than the grass producer.
To calculate the amount of energy the apex predator (hawk) will receive, we need to multiply the energy produced by the grass (83,721 kcalm2yr) by the efficiency of energy transfer between each trophic level (10%).
83,721 kcalm2yr x 0.1 = 8,372.1 kcalm2yr
Therefore, the apex predator (hawk) will receive 8,372.1 kcalm2yr of energy.
Soy is nutrient dense. Most soy products are fed to farm animals, but people who eat plant-based diets typically use soy as the base of their diet. However, soy is often grown in environmentally unfriendly ways. Using this information, which of the following diets would minimize the environmentally damaging effect of soy?(1 point)
Responses
mostly farm animals
mostly farm animals
a mix of farm animals and hunted animals
a mix of farm animals and hunted animals
a typical plant-based diet
a typical plant-based diet
a mix of plant-based and farm animals
A mix of plant-based and farm animals would minimize the environmentally damaging effect of soy.
This is because animal agriculture (raising farm animals) often requires large amounts of soy for animal feed, leading to deforestation, habitat destruction, and water pollution. On the other hand, a plant-based diet that relies heavily on soy can also contribute to environmentally unfriendly soy production if the soy is not grown sustainably.
By consuming a mix of plant-based and farm animal products, individuals can help reduce the overall demand for soy while still obtaining important nutrients from both plant and animal sources. This can contribute to a more sustainable and environmentally friendly food system overall.
Which of the following is a way that populations of species are limited?(1 point)
Responses
Populations are limited by how much food there is for them.
Populations are limited by how much food there is for them.
Populations are not limited naturally; without human influence, populations of species would grow exponentially.
Populations are not limited naturally; without human influence, populations of species would grow exponentially.
Population size is generally unpredictable.
Population size is generally unpredictable.
The population of a species cannot grow beyond a billion individuals before becoming overpopulated.