Biology, 22.04.2021 18:40 brendacauani12345
DNA is made of two chains of nucleotides. Which type of bonds hold the chains together?
O hydrogen bonds
O covalent bonds
β’ ionic bonds
O polar covalent bonds
Answers: 3
Biology, 21.06.2019 12:30
Based on the phylogenetic chart, which three statements are true about the relationship between the organisms? a human is more closely related to a mouse than a kangaroo.a platypus is more closely related to kangaroo than a mouse.a human and a kangaroo share common features because of a common ancestor.a platypus and a mouse are more closely related than a platypus and a kangaroo.a kangaroo and a mouse are more closely related than a mouse and a human.
Answers: 1
Biology, 21.06.2019 22:00
Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the
Answers: 1
Biology, 22.06.2019 04:30
Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?
Answers: 3
Biology, 22.06.2019 07:30
Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.
Answers: 1
DNA is made of two chains of nucleotides. Which type of bonds hold the chains together?
O hydroge...
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