Answer: Valves in the veins
Explanation: The flow of the blood inside the body takes place through the veins and arteries. The oxygenated blood from the heart is supplied to the different parts of the body.
The blood flows from the capillaries to the venules and from there to the veins. The blood moves in the veins by the rhythmic movement of the smooth muscles in the body.
Most of the blood moves against the gravity so there is a chance that it can backflow so to prevent this there are valves in the veins known as one way valves.
The self-awareness of being romantically or sexually attracted to a defined group of people is referred to as sexual orientation
<h3>
What is self management?</h3>
Self management is a personal skill that allows a person to control and regulate their emotions, thinking and behaviour very effectively in every situation.
The main factor of self management is positivity it means when you feel positive and motivated you can control yourself better and by creating short- term as well as long- term goals for achieving first of all develop positive outlook.
There are several self management skill that helps us to maintain the goal of self management and they are time management, problem solving, decision making skill, including confidence as well as self protection.
Therefore, self-awareness of being romantically or sexually attracted to a defined group of people is referred to as sexual orientation
Learn more about self management here:
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The correct answer is:
Grow a legume crop to support the development of root nodule
The best way that a farmer could increase the amount of nitrogen in his fields without adding synthetic fertilizer is to grow a legume crop to support the development of root nodules. This is because legumes have a symbiotic relationship with bacteria found in the soil.
Explanation:
Legumes use nitrogen fixing bacteria, specifically symbiotic rhizobia bacteria, within their root nodules to counter the limitation.The plant root cells convert sugar into organic acids which then supply to the rhizobia in exchange, hence a symbiotic relationship between rhizobia and the legumes.
Answer:
It provides a defined order to the succession of organisms.
Explanation: Relative dating of rocks involves the relative or comparative determination of age with reference to past events. There are several principles involved in carrying out relative dating. Some of these principles are:1. Principle of inclusion2. Principle of inclusion 3. Principle of fossil and fauna succession The Principle of fossil and fauna succession postulates that fossil and fauna succeeds one another in a definite pattern. It is this defined order that we use to achieve relative dating of rocks. Plant and animal remains constitutes the fauna and fossils used in dating the rocks. When we find a particular fossil in a rock, we can place that rock in its appropriate geological time. We can even go further by correlating rock types using their fossil contents.
Answer:
C. in areas with different air pressures
Explanation:
"Convection currents occur within:
The geosphere – plate tectonics
The atmosphere - wind
The hydrosphere - ocean currents"
Hope this helps u.
