Blue whales<span> are the largest animals ever known to have lived on Earth. These magnificent marine mammals rule the oceans at up to 100 feet (30 meters) long and upwards of 200 tons (181 metric tons). Their tongues alone can weigh as much as an elephant. There are mammals hope this helps you</span>
Answer:
greenhouse gases
Explanation:
all gases whose have three or more greenhouse gases :carbon dioxide (CO2), methane (CH4) and water vapor (H2O)
Answer:
Alleles.
Explanation:
Gene may be defined as the functional segment of DNA that codes for the particular protein. Genes are responsible for the phenotype and genotype of the organism. Each gene may exist in multiple forms.
The variants forms of the genes are known as alleles. Alleles are the alternative form of the same gene. A single gene may have atleast two alternative form. These alternative forms together contribute the functional aspect of the organism.
Thus, the correct answer is alleles.
Answer:
1. left ventricle of the heart (ejects blood into the aorta)
2. ends with the right atrium (collects returning blood)
Explanation:
The eons that make up 90% of Earth's history are the Precambrian eons, which consists of Hadean, Archean, and Proterozoic eons.