They carry oxeganated blood away from the heart,while capillaries?

Q: Prompt With many issues regarding stem cell research with one of them being the utilization of embry...

A: INTRODUCTION Stem cell research The scientists grow stem cells in the lab and later the cells are ma...

Q: What is known as catabolite repression ?

A: Certain terms are fundamental concepts and terms used in biology, which is the study of life and liv...

Q: The difference between arteries in your body and the pulmonary artery is the following: O The pulmon...

A: Introduction Arteries and veins (also known as blood vessels) are muscular tubes through which blood...

Q: Explain how the ANS coordinates the activities of different organs.

A: ANS is autonomic nervous system part of a peripheral nervous system. 

Q: How could you equalize the water level on each side of the tube by adding solute? Pure water Postive...

A: We can equalise the water level of the tube by adding solute to the left side of the tube so that wa...

Q: Virology: Why do cells express viral receptors if it allows them to be infected?

A: Introduction :- In viral host range, tissue tropism, and viral pathogenesis, virus–receptor interact...

Q: In what ways do the functions of the cytoskeleton differ from those of the endomembrane system?

A: Introduction: Cells are the fundamental unit of life. They are modified in different ways to carry o...

Q: Identify the nutrient: is an antioxidant; animal sources are more reliable than plant sources; defic...

A: Vitamin A  Common Name: Retinol Source: Yellow and green vegetables, fruits, milk and butter Defici...

Q: A new plant forms from a stem that broke off of the parent plant. This is an example of_____ . a. no...

A: Plants are the mainly photosynthetic, autotrophic eukaryotes of kingdom plantae. Plants are multicel...

Q: How do the structure and function of rough ER differ from those of smooth ER?

A: The endoplasmic reticulum is membrane bound organelle consisting of delicate branching and anastomos...

Q: True or False The sugar-phosphate backbone is located on the outside of the molecule with the 2 sets...

A: The nucleotide polymer that are responsible for determining and regulating genetic characteristics o...

Q: Select the best answer or answers from the choices given: All of the following are considered innate...

A: Immune response is defined as the process through which the body's immune cells recognise invading p...

Q: In Figure 4-8, some meiotic products are labeledparental. Which parent is being referred to in thist...

A: The final product of meiosis comes when there is splitting in the cytokinesis. The products that are...

Q: A strain of Neurospora with the genotype H ⋅ I is crossedwith a strain with the genotype h ⋅ i. Half...

A: Recombination of genes during meiosis occurs by the process of crossover.  

Q: Which of the following is FALSE? A. Bile is a fat molecule-busting enzyme B. Vitamins are organic co...

A: The digestive system is responsible for digestion and absorption of nutrients from the consumed food...

Q: The long solenoid structure of the chromatin material binds to a protein scaffold through the SARS o...

A: The solenoid model of DNA is the packaging of DNA in case of eukaryotes.  Short region of DNA doubl...

Q: In A, describe the movement of water as solute is added to the right side. H,0 Pure water Negative p...

A: Osmosis is the diffusion of water from its high concentration to its low concentration through a sem...

Q: Why do people differ in the rate and the quality of reaction?

A: Nervous system is a complex system it controls the human on what to do  and what to speak (i.e it co...

Q: are part of the adaptive immune system and able to establish immunological and memory. These mark pa...

A: Immune response is defined as the process through which the body's immune cells recognise invading p...

Q: What are the possible causes of differences in the bone structure of the vertebral columns in birds ...

A: The vertebral column includes the spinal cord and the spinal fluid that surrounds it. Additionally r...

Q: Define homeostasis and explain its significance.

A: Introduction: Homeostasis is the tendency to resist change in order to maintain a stable and constan...

Q: Represents innate immune system receptors

A:  Innate immunity- are the responses which are first line of defense against invading pathogens. The ...

Q: Show some functions of the tetrahymena hammer head ribozyme, the L-19IVS ribozyme and 28S ribosomal ...

A: Hammer head ribozyme: *Hammerhead ribozymes are small, catalytic RNAs  undergoes self-cleavage of th...

Q: Attenuation results when which regions of the 5′ UTR pair?a. 1 and 3b. 2 and 3c. 2 and 4d. 3 and 4

A: In bacterial operons, attenuation is a regulatory mechanism that ensures normal transcription and tr...

Q: Diagram the cross: a male fly expressing white (w) on the x chromosome, vestigial wings (vg) on chro...

A: There are few important points: Mainly Four types of sex determining mechanism exists in animal - XY...

Q: Color blindness in humans is controlled by an X-linked completely recessive allele (Xc), while breas...

A: Introduction :- Color blindness (colour vision deficit) is a condition in which a person's ability t...

Q: extracellular conditions are unfavorable, th

A:

Q: 2) Cross a pea plant that is heterozygous for purple flowers and homozygous dominant for yellow seed...

A: Heterozygous purple flower: Pp Homozygous dominant yellow seeds: YY Homozygous recessive green seeds...

Q: Contrast the functions of mitochondria and chloroplasts, and discuss ATP synthesis by each of these ...

A: Mitochondria are double membrane bound organelles found in all the eukaryotic cells. The avarage num...

Q: From the table below which shows the metabolic rate for each activity, if a person with height 1.50m...

A: Energy expenditure of human body: It is calculated by the features of body such as its composition a...

Q: How do sialic acid conformations explain the difference between influenza strains that infect humans...

A: An influenza pandemic is a worldwide outbreak produced by a novel influenza virus against which huma...

Q: Which class of fusion proteins are composed mostly of beta sheets?

A:  INTRODUCTION     The viral fusion proteins have an main relationship between  the structure of viru...

Q: What is the 5′ cap? How is the 5′ cap added to eukaryotic pre-mRNA? What is the function of the 5′ c...

A: RNA processing is the term by and large used to portray the sequence of occasions through which the ...

Q: location of a gene on a b. phenotype chromosome C. locus an iorganism's physical characteristics d. ...

A: Biological macromolecules are massive molecules that are required for live organisms' survival and g...

Q: Label the parts of the flower shown above

A: Flowers exist only for the purpose of sexual reproduction, guaranteeing the species' survival. Sever...

Q: why do we used Living cell microsope for?

A: Microscope is an instrument that is used to observe objects that are too small to be seen by our nak...

Q: What are the pointed structure

A: Introduction Bone tissue can be divided into the following categories: A-Compact bone ; mainly serve...

Q: 13 Black coat color (B) in cocker spaniels is dominant to white coat color (b). Solid coat pattern (...

A: So according to the law of assortment from Mendel's in dihybrid cross . This law states that assortm...

Q: What is the sequence of the sample DNA submitted for sequencing given the gel electrophoresis profil...

A: Sanger sequencing method is chain terminating method. 

Q: True or False The unique stem-loop structures of the transfer RNA helps the RNA perform its function...

A: RNA molecule is a single stranded structure may be single or folded and coiled upon itself. The tran...

Q: A cross between two Igf Igf-- mice is expected to produce which of the following offspring? 1 normal...

A: IGF is insulin like growth factor.

Q: what are the reasons for the occurence of codominance and incomplete dominance traits?

A: Codominance is a term that refers to the link between two variants of a gene. Individuals inherit on...

Q: Compare methods that biologists use to study cells and point outthe ways in which many of these appr...

A: A cell is the smallest unit of a living thing. An organism is a living creature that is made up of o...

Q: Predict the level of genetic activity of the lac operon aswell as the status of the lac repressor an...

A: Lac operon is regulated by positive and negative control.  

Q: In Darwin's theory of natural selection, which of the following is a source of evolution: a.Individu...

A: c.Individuals with random mutations who are able to reproduce.

Q: 1. Explain how the nervous system and endocrine differ: 1. the rate of their control, 2. the way in ...

A: The nervous system is one of the most significant systems in the human body for transmitting informa...

Q: Which of the following types of RNA participate in protein synthesis by bringing the amino acids to ...

A: RNA is Ribonucleic Acid .It has 2'OH group at its bases such as Adenine (A),Guanine (G),Cytosine (C)...

Q: How do you think human body sustains life

A: For metabolic functioning, all life forms require certain essential chemical components. The element...

Q: MATCHING about feeding types bulk feeders [Choose ] sponge, tube worm, baleen whale suspension feede...

A: Bulk feeder - human, orca, eagle. Suspension feeder - sponge, tube worm, baleen whale. Detritovore/d...

Q: State the concept of Isolation of the Repressor ?

A: Jacob and Monod propose a negative control strategy in which certain genes, called regulatory genes,...