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Q: Plant have ____ while animals lack it. A. starch B. cellulose C. protein D. fat

A: Plants differ from animals in many aspects, for example, plants are autotrophs while animals are het...

Q: 2. Cause and effect: Mechanism and explanation. Events One example have causes, sometimes simple, so...

A: Cause effect relationship is the relationship which suggests that the event which is the cause is re...

Q: What is the differencebetween taeniasis andcysticercosis?

A: Helminths are parasitic worms that are multicellular parasite and can be easily seen by naked eyes. ...

Q: Give some characteristics of dense irregular connective tissue.

A: As it is obvious from its name that the connective tissue connects the tissue and organs.  The cells...

Q: What tissue would logically contain cells with large amounts of rough ER and smooth ER?

A: Endoplasmic reticulum (ER), are a continuous membrane system that forms a series of flattened sacs w...

Q: What do you mean by innervation of smooth muscles?

A: Smooth muscles are present all over the body. They are involuntary in functions and are non-striated...

Q: Name the two types of hormones and compare their mechanism of action

A:     Hormones are chemical messengers or signal molecules which are secreted by the endocrine system ...

Q: During an Ames test, bacteria were exposed to a potential mutagen.Also, as a control, another sample...

A: Ames test is a method that uses bacterial cells to test whether a chemical can produce mutations in ...

Q: An enhancer is a _____________ that ___________ the rate of transcription. a. trans-acting factor, i...

A: Transcription is the first step in central dogma of protein synthesis. It involves formation of sing...

Q: Define glycolysis and explain its input and output, its basic steps, andhow it is linked to the Kreb...

A: Glycolysis, Krebs cycle, and Oxidative phosphorylation are three essential stages of cellular respir...

Q: Calculate the size of an organism that occupies 26 um spaces under the scanner, LPO, and HPO using s...

A: An ocular micrometer is used to measure the size of objects. The stage micrometer is used to calibra...

Q: Give the exact location and one function of lacrymal gland.

A: It is the exocrine gland. They are present in pairs.

Q: Describe the function of the plasma proteins, electrolytes, gases, and regulatory substances.

A: More than 90 per cent of plasma is water. The remainder is mostly plasma proteins mainly albumin, gl...

Q: Is the blueness a recessive trait why and why not  What was Elizabeth smith only possible genotype ?...

A: In genetics, a gene consists of two alleles. One allele which masks the effect of other allele is kn...

Q: Describe the “blender experiments” of Hershey and Chase and what they revealed about DNA versus prot...

A: The blender experiment performed by Hershey and Chase proved that the deoxyribonucleic acid (DNA) is...

Q: Name the hormones secreted by other organs like placenta, kidneys , heart and adipose tissue

A: A hormone is a type of signaling molecules that are produced by glands in multicellular organisms. T...

Q: which illustrates Buri’s experiment on genetic drift in populations of Drosophila. List evidence tha...

A: Due to random sampling of organisms, the change in the allelic frequency within the population over ...

Q: Explain the difference between functional connectivity and structural connectivity. Provide an origi...

A: The brain connectivity can be described as the connection between the neurons through which they are...

Q: Difference between inheritense of one gene and inheritence of two gene?

A:  INHERITANCE - we all poses some similarities with our parents because we inherit some of their char...

Q: As you should recall, DNA, when not being actively transcribed, has a double helical structure.  Thi...

A: The DNA has two strands one is the Template strand and other is the coding strand. Based on the abov...

Q: 1. When observed under the microscope, what is the most striking difference between plant and animal...

A: Under a microscope we observe the minute details about a particular structure. A cell is the basic c...

Q: Which of the four chambers of the human heart has the thickest muscular wall?

A: Organ is a group of tissues in a living organism that has a specific purpose or function.  The major...

Q: Compare exocrine and endocrine glands and give examples.

A: EXOCRINE GLANDS -  They are attached to our body directly that is with the help of ducts. Substanc...

Q: What are poineer species?What is the role of the poineer species?

A: Species refers to group of organisms that can interbreed among themselves to give rise to fertile of...

Q: 3. For the tests listed in following table, describe the appearance of a positive result. In the nex...

A: Benedict’s test is performed by heating the reducing sugar solution with Benedict‘s reagent. The iod...

Q: The identification of a stop codon for a particular gene is anexample ofa. sequence recognition.b. p...

A: A codon is a sequence of three nucleotides that codes for the specific amino acid. A genetic code tr...

Q: Fill in the blank:  When carbonic acid dissociates, _______________________ and hydrogen ions are re...

A: The bicarbonate buffer system can be defined as an acid-base homeostatic mechanism that includes the...

Q: Explain the function/control of cortisol in our system

A: Cortisol is a steroid hormone that belongs to the glucocorticoid class of hormones. It is basically ...

Q: Write about a particular activity that you do that can be described as a complex behavior. This must...

A: Let us take the example of a person intending to pick up a coffee mug. This can be described as a co...

Q: What are THREE indications of a high coliform counts in a food product?

A: The coliform count is an indicator of hygiene and a high level of coliform generally depicts unsanit...

Q: Two male mice, which we will call male A and male B, are bothphenotypically normal. Male A was from ...

A: An organism has phenotype and genotype. Phenotype is the observable characteristics and genotype is ...

Q: What is the approximate rate of change of A340 measured? i.e.  ΔA340  / min =  __________ What rate ...

A: Beer-Lambert's law states that the absorption and concentration of a compound are directly proportio...

Q: Define the term cohesion, surface tension, adhesion.

A: A water molecule consists of two hydrogen atoms, bound to the same oxygen atom by covalent bonds. Th...

Q: What types of controls are used for the slide agglutination?

A: A protein produced by the immune system of body when it detects harmful substances is called antibod...

Q: Name the hormones released by the Posterior Pituitary gland and their actions.

A: Hormones are the chemical messengers of our body that circulates in the blood stream and transmit si...

Q: A hydrophobic substance__________water while a hydrophilic substance______________  water.

A: Hyrophobic molecules are non polar and hence prefer other neutral molecules and non polar solvents. ...

Q: The gonads produce what class of hormones?a. amine hormonesb. peptide hormonesc. steroid hormonesd. ...

A: Gonads are the reproductive glands of the animals. Their primary function is to produce gametes duri...

Q: What do you mean by coal and petroleum?

A: The yellowish-black liquid that is naturally found beneath the earth's surface is called petroleum. ...

Q: 6.) How do the percent of calories from each macronutrient group (protein, fat, and carbohydrate) co...

A: Dietary Reference Intakes (DRIs) are a set of reference values used to plan and assess the nutrient ...

Q: Describe the unique characteristics of viruses.

A: The cells can be classified as prokaryotic cells and eukaryotic cells. The prokaryotic cells are dev...

Q: Diabetes insipidus or diabetes mellitus would mostlikely be indicated by ________.a. anuriab. polyur...

A: The normal range of urine volume is 1-2 liters/day. Thus, the volume of urine differs significantly....

Q: 5. SEX-LINKED INHERITANCE The brother of a womon'o fothor be

A: Haemophilia is X linked recessive bleeding  disorder in which blood  clot is not formed normally. XY...

Q: You have isolated a new protein called STICKY. You can predict from comparisons with other known pro...

A: The structural motif is a pattern in a protein structure that is formed by the spatial arrangement o...

Substance Abuse

Substance abuse refers to the use of illegal drugs in excessive quantities, as well as the misuse of legal substances such as prescription or over-the-counter pharmaceuticals or alcohol for purposes other than those intended. Drug addiction, also known as substance use disorder, is a disease that affects the brain and behavior of a person. It leads to a failure to control the use of any drug or prescription, legal or illegal.