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Q: DNA exists in cells as a double-stranded duplex molecule, whereas RNA, which is composed of very sim...

A:  DNA and RNA are found in diverse forms and structures to facilitate particular functions. These str...

Q: What nutrients do plants need, and how are those nutrients acquired from the environment?

A: Nutrients help plants to prepare food, growth, and transport substances. They help sustain plants in...

Q: Describe the stages of intramembranous ossification,Name a bone that is formed in this way.

A: All bones develop from the mesenchymal tissue of the embryo. The bones are formed by the deposition ...

Q: Describe how the skeleton is organized into axial and appendicular divisions.

A: The human skeletal system forms the rigid framework of the body. yIt is made up of bones, ligaments ...

Q: Explain why it is difficult to use carbon-14 dating on 100-million-year-old dinosaur fossils

A: Carbon dating is a technique used for the determination of the age of an object which contains organ...

Q: Although the stomach is normally thought of as the major player in the digestive process, the bulk o...

A: Although the stomach is normally thought of as the major player in the digestive process, the bulk o...

Q: Hello, could you please help me with the basics of NICOTINE (short description, symptoms associated ...

A: Nicotine is a chiral alkaloid that is normally delivered in the nightshade group of plants (most pre...

Q: Which nutrients are in plasma?

A: Nutrients can be defined as the compounds  present in foods which is essential to life and health, p...

Q: What type of molecule forms the antibodies found in the human immune system?

A: Antibodies are formed against antigens. They are produced by B cells, a specific type of white blood...

Q: Draw the relationship between snails and Elodea using the appropriate arrows and the two carbon mole...

A: Snails produce carbon dioxide which is used by elodea to convert into sugar through photosynthesis. ...

Q: XYLEM PHLOEM Direction: Using the diagram below, explain the concepts of pulmonic and systemic circu...

A: Anatomy and physiology are the branches of biology, anatomy deals with the study of the structure of...

Q: What does extracellular fluid contain?

A: The body water consists of extracellular fluid (ECF) and intracellular fluid, which play essential p...

Q: What are the goals of taxonomy?

A: Darwinian classification is a category of biological classification that attempts to classify organi...

Q: When Griffith incubated heat-killed virulent S strain bacteria with live avirulent R strains, he fou...

A: Griffith conducted a series of experiments and discovered the Transformation principle. S strain bac...

Q: Which of the following is a characteristic of humoral immunity?   Question 9 options:   ...

A: The immune system works by the synthesis of some immune elements that perform necessary reactions to...

Q: The walls between cartilage lacunae break down in the zone ofa. cell proliferation.b. calcification....

A: Chondroblasts and chondrocytes, extracellular matrix, make up the cartilage. Based on the type of fi...

Q: Does the improper electrode placement in ecg lead to waveform interference or weak/no signals? And w...

A: The system of positioning and placement of leads for performing a 12-lead ECG is universal. This hel...

Q: Discuss the pharmaceutical and biological applications of colloids using 5 examples of colloids used...

A: Colloids are the heterogeneous mixture of two substances in which one substance is the dispersion me...

Q: Use the pedigree to answer the question. How is this trait inherited? A. The trait is epistatic. ...

A: Pedigree is a diagram that shows the relationship between the individual in a family. The geneticist...

Q: Read the paragraph below. Select the terms that best complete the sentences from the drop down menus...

A: The linear link between the organism based on the transfer of matter and energy or food habits is ca...

Q: . The structures that enable some Gram-positive bacteria to remaindormant for extremely long periods...

A: Gram staining is a technique used to differentiate between two groups of bacteria namely Gram-positi...

Q: State a meaning of each word element, and give a medical term that uses it or a slight variation of ...

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If y...

Q: In what ways are conifer leaves adapted to resist waterloss from their surfaces?

A: Conifers are the type of gymnosperms (seedless vascular plants) which grow in colder areas and are a...

Evolutionary lineages

An evolutionary lineage is a series of populations of organisms that descend from a common ancestor. Each species in the lineage is the direct consequence of evolutionary change from a common ancestor. A phylogenetic tree is generally used to display lineages visually. Lineages are components of the phylogenetic tree of life. Molecular systematics procedures are widely used to predict lineages.