Answer:
Letter B
Explanation:
Moulting or ecdysis is a process that occurs in arthropods and is characterized by changing the skeleton of these animals to ensure their growth. This process is essential because these invertebrates have an external skeleton, which makes continuous growth impossible and for this reason this animals need to change its skeleton and to produce another new one.
Despite being rigid, the animal gets its movement thanks to the joints. Because of this property, the phylum was named Arthropoda, which means “articulated feet”. The interesting thing is that you can see these periodic seedlings scattered in the environment, like and "bark".
Answer: Passive Transport - Taking the Easy Road. While active transport requires energy and work, passive transport does not. There are several different types of this easy movement of molecules. It could be as simple as molecules moving freely such as osmosis or diffusion.
True
False
Answer:
Biosphere is the one of the sphere of geological sphere of the earth such as geosphere, hydrosphere and atmosphere. It is deal with the interaction and existence of the living organisms.
In this model it can be seen that there are human, fishes, and vegetation of plants are living organisms so living organisms in the hydrosphere (fishes), geosphere (plants) and anthrosphere (human) should be label as biosphere instead of atmosphere or with atmosphere.
The biosphere label should be appeared in the system model that contains geological sphere of the earth.
It is the one of the sphere that comprise of the geological sphere of the earth like the geosphere, hydrosphere and atmosphere. In this, there should be the existance and the interaction of the living organism.
Here in the given model, there should be the human, fished, etc should be labeled as the biosphere rather than the atmosphere or without the atmosphere.
Learn more about biosphere here: brainly.com/question/21631784
c. variation
b. over production of offspring
d. all of these
The answer is a. natural selection.
In natural selection, genotype variations that will increase the chance of survival and reproduction of some organism are preserved and will be inherited. Darwin's theory suggested that there are variations among individuals in a population and that these variations will help individuals to survive. According to Darwin, natural selection is the only factor that affects frequency of different variations.