Answer:
A dolphins are mamals because they give live birth.
Explanation:
All the answers are written on the same page just in a different way look for them!
Explanation:
The atmosphere is the gaseous envelope round the earth.
The biosphere is the part of the earth dominated and occupied by living organisms.
As with other spheres of the earth, the biosphere and atmosphere are constantly interacting too.
- Organisms breathe in air to their respiration processes.
- Weather elements are conditioned by the atmosphere.
- Decomposition of organisms release gases back into the atmosphere.
learn more:
Biogeochemical cycle brainly.com/question/4217448
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<span>A heterozygous individual is if a mutation occurs in just one copy of the gene.
If both copies of the gene are mutated than the individual is homozygous</span>
Explanation:
1). Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Chromosomes are not visible in the cell’s nucleus—not even under a microscope—when the cell is not dividing.
2) is pic
