C. Sending a message to the pituitary gland to start producing a hormone when the levels in the body are low.
Answer:
Contract; relax
Explanation:
In the patellar tendon reflex arc, the quadriceps femoris contracts when the quadriceps femoris of the the thigh is stretched through the stretching of the patellar ligament. This also causes the hamstring to relax
Answer:
The ability of aphids to reproduce both sexually as well as asexually increases its chances for survival in an ecosystem. By the method of asexual reproduction, the aphids are able to multiply in numerous amounts due to which their population increases. Through sexual reproduction, genetic diversity will arise in the aphids population which will make it more stable to survive in an ecosystem. Hence, the aphids benefit from both the methods of reproduction.
Answers:
1. C is correct answer. Y is a liquid because it fills up to the entire container.
2. C is correct answer. The two substances are the same because their intensive property is the same.
Hope it helped.
-Charlie
At a smaller scale, other scientists may investigate the processes involved in cycling water and the elements of life through the biosphere: carbon, nitrogen, sulfur, phosphorous, and other elements. These studies can also provide "ground-truth" - observations on the ground which are used to validate the remotely sensed data. As more and more observational and experimental data become available, other scientists construct models to help us understand the biosphere, how it evolved, and even provide tools that allow for predicting the future response of the biosphere to global change and human activities.
