100 POINTS AND A BRIAINLIST HELP PLS

So can Someone please help me on 3.),5.) and 6)

3. Tigers and goldfish are not related.

Tigers and goldfish ARE related.

Even though they are not closely related, they are both vertebrae animals, and they also share the same Phylum. Though they are in different classes (Tigers belong to the Class Mammalia, while Goldfish belong in the Class Actinopterygii), BUT they both belong to the Phylum Chordata.

5. Mammals and plants don't belong in the same domain.

Mammals and plants DO belong in the same domain.

Mammals and plants belong in the same domain called Eukarya. However, Eukarya is divided into four kingdoms: Fungi, Plantae, Animalia, and Protista.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.