Answer:
crystallization, metamorphism, and erosion and sedimentation
<u>ANSWER:</u>
The Earth’s tilt affects the climate because, if the Earth’s tilt is towards the sun, the season is summer.
Thus, the larger the tilt, the warmer the summer is the correct answer.
<u>EXPLANATION:</u>
The earth is tilted at an 'angle of 23.5 degrees' and rotates about its axis in addition to revolving around the sun. It is the revolution of the earth that causes changes in the seasons.
When the earth is tilted more facing the sun, the earth gets more sunlight. This means that the intensity of the sunlight would be more and therefore the summer will be warmer in addition to longer duration of days and shorter nights.
Answer:
The correct option is A. they evolved from land mammals.
Explanation:
Evolution can be described as a process through which organisms in a species change over a period of time due to the natural selection of the environment. Those organisms that have many similarities in their functions or structures are considered closer to one another and have the same common ancestors.
The properties mentioned in the question about cetaceans resembles the properties of land mammals. For example, cetaceans lack gills and breathe air. Land mammals also do not have gills and need to respire for living. The cetaceans have fin bones which are similar to the limb bones in the land mammals. Hence, these observations show that cetaceas have evolved from land mammals.
Answer: E) provide the defense for the CNS
Explanation:
Astrocytes can be defined as one of the cell types in the central nervous system. These are the dominant glial cell found in the brain. These cells perform a variety of functions in the brain. The functions includes axon guidance, synaptic support, controlling the blood brain barrier and blood flow. These cells maintain the chemical environment in the brain especially around the neuron.
These cells do not provide to the central nervous system.
Answer: According to sources, the most probable answer to this query is that evolution happens because when life came it sought for survival. Now, this is through mutation which causes random DNA sequences leading to genotypic and phenotypic changes. Natural selection as relation to adapting to the selection forces of the environment. And when these factors is added by the niche and other large case scenario to cause major anatomical changes, speciation comes through. And that, the process of evolution. And how it is a mechanism and an intermediate interaction with the environment.
Explanation:
