Bacteria is larger than viruses. It is one hundred times larger.
Hi there! The level of carbon dioxide affects the global temperature, because it causes heat to be trapped into the atmosphere and heat the Earth up. CO2 (formula for carbon dioxide) is a naturally made gas formed by breathing, but lots of it is bad for the planet. Human activities like driving cars and running factories add much more toxic gasses into the environment. Global warming is the cause of melting ice caps, which leads to rising sea levels, and is also the cause of some plant and animal species dying out.
Answer:
Cerebral Nuclei.
Explanation:
Cerebral nuclei refers to one of three components of the cerebrum. It is a composite structure of the end-brain defined on the basis of origin from the ventricular ridge of the embryonic Encephalon. It is a lusters of gray matter that contain neuron cell bodies and lie within masses of white matter.
The coral fossil would be a better estimate of past water depth. This is because most corals inhabit shallow water reefs, less than 150 feet deep. In contrast, pelagic fish may inhabit any open water (pelagic) part of the ocean, with depths ranging anywhere from a couple of hundred feet deep to miles in depth.
Answer:
Option D, has only a single opening
Explanation:
A gastrovascular cavity has only one opening. The food goes in and comes out of the same opening there by making it a two way digestive tract.
However, a digestive tube is a one way digestive tract where the food goes in from mouth (one end) and comes out of anus (second end) . It is also called as alimentary canal
Hence, option D is correct