Answer:
Virus is the only organism which is considered as both living and non living organism.
Explanation:
Virus has the characteristics of both living and non-living organism. The living character is that it is formed from DNA and RNA molecule and the ability to reproduce, while the non living character is that they are present in the form of crystals when they are out of the host cell. Due two these living and non-living characteristics of virus, people have some misconception. So it is clear that virus has both living and non living characteristics.
The correct answer is: D) Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles.
The lymphatic system is an open system which primarily consists of lymphatic vessels, (similar to the circulatory system's veins and capillaries) interrupted by lymph nodes, where the lymph is filtered. Since there is no central pump in lymphatic system (like heart in circulatory system) lymph transport, is slow and sporadic. Lymph movement occurs due to:
• peristalsis (contraction and relaxation of smooth muscle tissue),
• valves,
• contraction of adjacent skeletal muscle and
• arterial pulsation.
Overproduction
Most species produce more offspring than can survive.
Competition
Since living space and food are limited, organisms must compete for the necessities.
Variation
Differences between individuals in a population.
Adaptations
Any kind of inherited trait that improves an organism's chances of survival.
Natural selection
The environment selects organisms with optimal traits to be the parents of the next generation.
Speciation
Over many generations, favorable adaptations accumulate and may result in a new species.
Answer:
O sinkholes, caves, and hot springs chemical and physical actions of groundwater.
Explanation:
Sinkholes, caves, and hot springs are formed from the actions of groundwater. The rock is made up of lime below the surface of sinkholes. These lime react with underground water and dissolve it which soften the rock and causes sinkholes. Caves are also formed when the water dissolve the limestone present in the rocks of the cave and slowly the degradation of rock will occur and caves are formed. Hot springs are formed when the groundwater is heated by the magma of the earth crust.
