Answer:
Blue green algae or cynobacteria
Macromolecules contain large number of atoms. Milk contains
both carbohydrates and proteins, because it gave a positive result upon the
addition of Benedict’s solution which indicated an orange color. It means that
there is a concentration of reducing sugars in milk.
I believe the answer would be sweat
Body fluid that hard to be seen by naked eye must be clear(have no color) and not thin. Blood would be out of the question as it red color will be easy to perceive. Semen color is white but it will be clear after a while, but it was thick and has a strong smell.
Saliva is clear but mostly it has some bubles and a bit thicker than sweat. Sweat would be the hardest to find as it was clear and mostly water. But it gives less information as evidence than the other fluids.
Answer:
C. Determine whether the earthworms benefit from being with the plant
Explanation:
To answer the question, first, we need to keep clear the concept of mutualism as an interspecies interaction.
All organisms in nature interact with other organisms in different ways. Symbiotic interactions involve a relationship between two or more organisms of different species in which one or all of them turn to be beneficiated by that relationship. These species create permanent mutual dependence.
Symbiotic interactions include mutualism, commensalism, and parasitism.
Mutualism: The interaction is favorable for both species. Their fitness increases with these interactions, although they do not need this relationship to survive. The degree of benefits might vary among species or might be equal.
In the exposed example, the student already knows that the plant got beneficiated by the earthworm's presence. Now, to test mutualism, the student needs to figure out how the earthworms are beneficiated by the plant. What are the benefits of being with the plant?. If the student can not identify any advantage, then probably, the relationship between species is not mutualism but other.
Flow of lymph:
Lymph-lymph capillaries-lymph vessel (<u>thoracic duct</u>) -right subclavian vein- superior vena cava - right atrium of heart
Explanation:
The special lymphatic vessel, the right thoracic duct, will collect the lymph from lymph capillaries running in the right upper portions of the body like the right arm, right thorax, neck and head regions and will drain it to the right subclavian vein running below the right collar bone.
The lymph fluid from right subclavian vein then joins the left subclavian vein to enter the superior vena cava which then enters the right atrium of the heart.
