The primary advantage of gas exchange in water is that 1. surfaces are easily kept moist for gas exchange 2. water has more oxygen than air 3. ventilating gills do not require any energy 4. carbon dioxide is easier to eliminate in water than air

Q: 1. In corn, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders th...

A: In male plants, cytoplasmic male sterility refers to partial or complete sterility caused by interac...

Q: Match the following structural composition of each polysaccharide with its identity Linear homoglyca...

A: These are all biomolecules which are found in the cell membrane or used during enzymatic reactions t...

Q: Distinguish among the following structural abnormalities in chromosomes: translocations, deletions, ...

A: Chromosomal abnormalities: Our bodies contain 23 pairs of chromosomes, for a total of 46 chromosomes...

Q: Based on these data, the cells found at the crime scene may have come from which suspect? Pls help ...

A: Simple Sequence Repeats(SSR) These are often interchangeably referred to as "microsatellites" or "Sh...

Q: An HIV patient suffers from pneumonia, an opportunistic infection commonly associated with HIV. This...

A: A wide range of microorganisms can cause opportunistic infections. These pathogens can spread in a v...

Q: What are some ways that recent DNA technologies might affect you personally?

A: These days, DNA-based technology is very common. Biotechnology is the process of manipulating living...

Q: QUESTION 7 Which of the following places the steps of protein digestion and absorption in order I. p...

A: Introduction: Protein absorption refers to your body's capacity to break down animal or plant protei...

Q: . Dosage compensation is necessary because a. some regions of the genome contain more genes than oth...

A: Introduction : Heterochromatin is the darkly stained part of chromatin. The heterochromatin is conde...

Q: Match the term to the correct description. + Allantois A. Fluid-filled membrane that protects the em...

A:

Q: Why are blastomeres in the pigmented part of the egg smaller and more numerous than in the non-pigme...

A: The other terms associated with developmental biology include embryogenesis or embryology. This bran...

Q: Discuss hypotheses for why Burmese pythons deconstruct theirdigestive systems between meals. Similar...

A: Introduction A hypothesis is a statement of fact, or a concept that is made for the sake of debate a...

Q: Which amino acids can the amino acid D interact with via electrostatic or ionic bonds at pH 7? а. С,...

A: The amino acids are colourless, nonvolatile, crystalline solids, melting and decomposing at temperat...

Q: The Continuity of life is based on heritable information in the form of DNA, and structure and funct...

A: Introduction DNA is the famous molecule of heredity. It has been on the cover of Time magazine, and ...

Q: Cancer cells typically lose cell cycle entry control. Explain how the following mutations, which are...

A: Mutations are changes or alterations that occur in the DNA. Mutagens are the agents that are respons...

Q: Which of the following statements is/are true of the variegated eye color phenotype in Figure 12-23?...

A: Introduction :- A phenotype is a set of observable characteristics about a person, such as height, e...

Q: Explain the different landforms associated with the three plate boundaries

A:

Q: Given this data matrix, which of these two trees is more likely representative of the evolutionary r...

A: Phylogenetic tree is a diagrammatic illustration which determines how taxons are closely related to ...

Q: Why are mesozoans considered the intermediate step between protozoans and metazoans?

A: Animal Kingdom classification is very significant to understand how the organisms are related to one...

Q: What are some examples of invertebrate or vertebrate animals that have contributed to scientists' kn...

A: Introduction:  Vertebrates are animals that possess a vertebral column and/or notochord at any point...

Q: APODIFORMES 1. striped bands(head,neck,breast) - 4 Cypseloides niger CAMOUFLAGE (black swift)(martin...

A: Many of the bones in a bird's body are hollow, making the bird lightweight and better adapted to fly...

Q: 1. A series of complex proteinaceous strips that allow flexing movement of the Euglena. 2. In the ge...

A: Euglenids are characterized by the presence of a unique cell covering known as the pellicle, The pel...

Q: In cats, the black allele (B) is dominant over white allele (b). Given a population 2000 cats, 1680 ...

A: Hardy-Weinberg principle is generally used to compare the frequency of alleles in a given population...

Q: Even though very few cells in a C4 plant carry out the biosynthetic-Calvin pathway, yet they are hig...

A: C4 is a plant that can utilize carbon dioxide into four carbon sugar compounds in order to enter int...

Q: I. INSTRUCTION: Analysis. Presented on this part are set of images with certain medical conditions. ...

A: Humans have immune systems that defend the body from disease-causing microorganisms. The first line ...

Q: Question 9 Cystic fibrosis is caused by the allele f, which is completely recessive to the normal do...

A: Cystic fibrosis is an autosomal recessive disorder and the disease affects individuals only if he or...

Q: An abnormality in which there is one more or one fewer than the normal number of chromosomes is call...

A: Meiosis is the process by which diploid cells divide into haploid gametes. To form four haploid game...

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A: * 3′,5′-cyclic monophosphate (cAMP) is a nucleotide that acts as a secondary messenger in signal tra...

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A:

Q: indebt  Land Preparation/ Planting  Management Practices that are involved in the commercial cultiva...

A: The field should be prepared to fine tilth by deep ploughing, three to four harrowing followed by le...

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A: Macrophages or WBCs are the phagocytic cells, they are involved in immune response of the body towar...

Q: Question 4 Which of the following contain statements that are both correct? Increase in CAMP and IP3...

A: Cells communicate with each other via released proteins unique to each kind. Signal transduction pat...

Q: What is the significance of the step-wise release of energy in respiration?

A: During oxidation within a cell, not all of the energy contained in respiratory substrates is release...

Q: Ray like pscudopodia of the radiolarians. * Your answer Net like pseudopodial type characteristic of...

A: Question 1 Radiolarians feature a lot of needle-like pseudopods that are supported by microtubule bu...

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A: SDS page electrophoresis - a denaturating gel electrophoresis used to find molecular weight of prote...

Q: What kinds of information can a human karyotype provide?

A: Introduction A karyotype is a preparation of the entire set of metaphase chromosomes in the cells of...

Q: 30

A: All statements are true. The below explanation is given for a normal bacteria under a suitable wavel...

Q: Use the concept of coevolution to explain the abundance of large mammals in Africa after the rise of...

A: Co evolution is a phenomenon in which two or more groups of species can affect the evolutionary proc...

Q: "in mammalian muscle cells under anaerobic conditions. Pyruvate will be converted to ethanol to rege...

A: In mammalian muscle cells  under anaerobic conditions pyruvate is converted. 

Q: (d) State whether the following statements are True or False. If False rewrite the correct form of t...

A: Introduction: Immunoglobulin (Ig) is another name for antibody (Ab) (Ig). Plasma cells produce these...

Q: Create a hand drawn schematic representation of the circulatory designs of the snakes.

A: Snakes have 3 chambered heart, 2 atrium and 1 Ventricle. 

Q: a 9.5nm thick cell membrane undergoes an action potential that follows the curve part a: what is the...

A: Introduction : Action potential is a short-lasting event in which the electrical membrane potential ...

Q: How are inactivated vaccine and mRNA vaccine produced? From what you know about DNA technology and g...

A: Inactivated vaccines are made up of virus particles, bacteria, or other pathogens that have been gro...

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A: Bugs are hexapod invertebrates of the class Insecta. 

Q: of bacterial culture is added to 45 mL of sterile diluent. From this suspension, the following seria...

A: Dilution is the process of diluting or mixing two or more substances or compounds; it is also referr...

Q: An inherited disorder caused by a defective or absent enzyme is called (a) a karyotype (b) trisomy (...

A: Introduction:- Inherited metabolic diseases are a group of medical problems caused by genetic flaws ...

Q: Which of the following genetic diseases is/are inherited as an autosomal dominant trait: sickle cell...

A: Introduction: Huntington's disease is an inherited disease that causes the progressive breakdown (de...

Q: Explain how the reactions that produce and use ATP serve,together, as an energy shuttle mechanism in...

A: ATP is also known as Adenosine Tri Phosphate is a compound that provides energy to living cell for p...

Q: For each of the anatomical or biochemical attributes listed below, indicate which are true of both C...

A: There are few important points about C4 and CAM plants are as follows: C4 cycle as its initial CO2 ...

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A: The phylogenetic tree is sometimes referred to as the "Tree of Life" or "Dendrogram." The idea of a ...

Q: Which type of nucleic acid is the following sequence, 5' GGGCCC 3'? DNA, RNA, Both DNA and RNA, or ...

A: Introduction :- DNA (deoxyribonucleic) and polymer (ribonucleic acid) are two molecules that are ter...