Answer:
1.Sea urchins are powerful primary consumers in the kelp forest. 2. Kelp is the producer in the kelp forests. 3. Bat star are omnivores and scavengers and at the end of the food web are tertiary consumers. 4 Phytoplankton are primary producers. 5. Zooplankton is a primary consumer in the food web.
Explanation:
1.Sea urchins are powerful primary consumer in the kelp forest because they are needed to keep the kelp anchored to the bottom of the ocean and algae . 2. Kelp is the producer in the kelp forest kelp forests provides an ecosystem for many organisms from the sea floor to the surface and provides shelter for many forms of sea life. 3. As a scavenger bat star is important in the ecosystem helping clean dead animals, and algae from the seafloor, the bat star keeps the seafloor healthy. 4. Phytoplankton are accounted for about half of photosynthesis on the planet, which makes them an important producer of oxygen, and serves as food source for smaller sea organisms, they consume carbon dioxide that would otherwise dissolve in the sea water making it more acidic. 5. Zooplankton are the animal like primary consumers of plankton community they also provide the base for the entire food web also if plankton disappeared it would increase the levels of carbon in our air.
Answer:
tissues --> organs --> organ system --> whole organisms
Explanation:
The simplest is tissues, while the most complex is whole organisms.
1) Tissue is an aggregation of cells
2) Organ is composed of tissues that perform similar functions.
3) Organ system refers to a group of organs that work together and coordinated to perform one or more functions. An example is the nervous system.
4) whole organism is a discrete and complete living thing, such as animal. It comprises of tissues, organs, organ systems all working together as a coordinated unit.
Answer:
Explanation:
Greenhouse effect is a natural phenomena. The solar radiations from the sun enters the earth atmosphere where some of the sun light is absorbed by the atmosphere as well as the terrestrial land. The rest energy is reflected back to the space. This helps in maintaining the balance of thermal energy on earth. Human activities like burning of fossil fuels, land clearing and agriculture are increasing the amount of greenhouse gases released into the atmosphere. These gases are responsible for absorbing the thermal energy present in the sunlight. Hence, can be responsible for increasing the global temperature worldwide. This is called as greenhouse effect.
Answer:
Statement 1: hypothesis
Statement 2: natural law
Statement 3: theory
Explanation:
1) An hypothesis is a proposed explanation for a phenomenon. It provides a suggested outcome. It needs to be tested through experimentation.
The statement says that an increase in sun exposure, increases the tomato plant growth, which is a suggested outcome and it can be tested.
2) Energy cannot be created or destroyed, is the first law of thermodynamics.
A scientific law is the description of an observed phenomenon. Without an explanation of the causes behind it.
3) A scientific theory is the explanation of a given phenomenon, based on a large body of empirical data.
This why after the pale and dark moths example, it says: Natural Selection had caused a change in the British moth population.
It is a theory that explains the phenomenon quoted.
The adult human brain weighs about 3 pounds (1,300-1,400 g)