Q: Which feature is found only in gnathostomes? both pelvic and pectoral fins or appendages ...
A: Gnathostomes are those organism who have jaws in their body. It includes two groups: Pisces: It inc...
Q: Discuss the adaptations of lower chordates to survival in terms of Nutrition
A: Chordates have three principal features: Presence of pharyngeal gill slits. Presence of dorsal tub...
Q: What is the difference between manipulating a gene for gene therapy and for producing a transgenic o...
A: The utilization of artificial tools and techniques to alter the genetic material of cells or organis...
Q: Name and describe the two important photosynthetic adaptations that minimize photorespiration
A: Photorespiration is a process in which plants take oxygen in the presence of light and produce Carbo...
Q: Trace the origin of the carbon and nitrogen atoms in the urea molecule.
A: Urea is a crystalline colourless compound that is the primary nitrogenous breakdown result of protei...
Q: Microaerophiles A) O do not require oxygen for growth B) O are the same as facultative anaerobes C) ...
A: Oxygen requirements of bacteria reflect the mechanism used by them, to fulfill their energy needs. O...
Q: Which is a passive transport process? a. Receptor-mediated endocytosis b. Ion pump c. Pinocyto...
A: Transportation is the process by which molecules can move in and out of the cell.
Q: Scientists have found through the study of population genetics that human populations are different ...
A: Genetic variation can be caused by a mutation (which can create entirely new alleles in a population...
Q: The amniotes include all but thea. birds.b. reptiles.c. mammals.d. amphibians.
A: Introduction Taxonomy is the branch of science which deals with the classification of organisms in ...
Q: discuss 3 myths surrounding evolution and natural selection.
A: Evolution is a process in which species have evolved. This involves natural selection which is the p...
Q: A group of students observe a sample of water under a microscope. The students see a single celled o...
A: The single celled organisms does not have very complex digestive system. Some of the single celled o...
Q: 4) Many bacteria and fungi are important in the environment because they A) recycle ...
A: Bacteria are prokaryotic organisms and are heterotrophic in nature. Fungi are eukaryotic organisms ...
Q: during sicing,introns of pre-mRNAs go through an intermediate stage when they are shapedlike: a lari...
A: RNA is the intermediate molecule in the central dogma . They carry forward the information stored in...
Q: Examples of cis-acting elements include promoters and enhancers. true false
A: Deoxyribonucleic acid (DNA) stores the cell’s genetic information and is present in the nucleus of t...
Q: Having _______ is a synapomorphy of bilaterians. collagen the ability to move ...
A: Having 3 germ layers is a synapomorphy of bilaterians
Q: John Tyndall mostly duplıcated Pasteur's spontaneous generation experiments with the swan-necked fla...
A: The Idea of spontaneous generation was put forward by many eminent scientists that supported this id...
Q: Discuss the adaptations of lower chordate in terms of circulation
A: The lower chordates gave the following features: dorsal notochord dorsal hollow nerve chord pharyng...
Q: Distinguish between genotype and phenotype
A: Genotype and phenotype are two important terms used widely in genetics and molecular biology.
Q: Biology Question
A: Quality control and quality assurance is the process of assessing final product quality and safety. ...
Q: Just the answers
A: As per our honor code, we are authorized to answer one question at a time, since you have not mentio...
Q: Dolphins and fish have similar body shapes. Is this feature more likely a homologous or analogous tr...
A: Evolution is the process of slow and gradual change over a period of time. There are various theorie...
Q: A. Why is it important that there are different types of proteins in plasma membranes for the transp...
A: Plasma membrane covering in all the living organisms and it is responsible for regulating the moveme...
Q: Before neurulation occurs, the cells that will later become neural crest cells are part of the _____...
A: Before neurulation occurs, the cells that will later become neural crest cells are part of the ectod...
Q: What organs gives our body the sense of the touch,protects it, and helps keep it at it keep it at ju...
A: It is basic charecteristic of living organisms to respond to external stimuli . In the given questi...
Q: What are the differentiate between the types of muscles.
A: Muscles are the part of skeletal system of a our body. They help us to move.
Q: A stroke results froma. hemorrhage in the brain.b. a blockage of a blood vessel in the brain.c. a de...
A: Option D is correct i.e. hemorrhage in the brain and a blockage of a blood vessel in the brain.
Q: Which of the following antimicrobial control methods would likely not beused in the clinical setting...
A: Sterilization alludes to any interaction that eliminates, murders, or deactivates all types of life ...
Q: At which stage of embryogenesis, major patterns of the internal tissues of the embryo have been alre...
A: Embryogenesis It is defined as a process which occurs after the process of fertilization of an ovul...
Q: Name the three regions of the small intestine and describe the distinctive features of each one?
A: The small intestine plays the role in carrying out many of the digestive processes and absorb almost...
Q: In which of the three major mollusk groups is each of thefollowing characteristics found?a. two hing...
A: Step 1 Hello. Since you have posted a question with multiple sub-parts, we will solve the first thre...
Q: Summarize the major functions of the pancreas, the liver,and the gallbladder.
A: The digestive system other than the alimentary canal has other accessory glands and organs like the ...
Q: In what human cells would you expect to find these bacteria?
A: Bacteria are infinitesimal(microscopic), single-celled life forms that flourish in assorted conditio...
Q: What is biology
A: Biology is the study of living organisms, which also includes their structure, function, inception, ...
Q: Microbial resistance to drugs is acquired througha. conjugation.b. transformation.c. transduction.d....
A: In biotechnology, microbial resistance is defined as the evolution of microbes with protective resis...
Q: How hos the growth of Earth s humon population changed in recent decades? Answer in terms of groth r...
A: A population is a group of species that inhabit the same area and live together. The individuals of ...
Q: Which are the chemicals that released while adrenal medulla stimulate ?
A: Adrenal glands are a pair of endocrine glands, located above the kidney. These secrete a variety of ...
Q: The Casparian strip affectsa. how water and minerals move into the vascular cylinder.b. vascular tis...
A: In roots and in some herbaceous stems but not usually in woody stems, the innermost layer of cortica...
Q: Which is a passive transport process? Receptor-mediated endocytosis Ion pump Pinocytosis Pha...
A: The plasma membrane is important for moving substances in and out of the cell. It is selectively per...
Q: In producing genetically engineered human insulin in bacteria, why is it important to use the samere...
A: Insulin is a natural peptide hormone produced by the beta cells of the pancreas in response to high ...
Q: how to transform a magnification into a scale bar and vice versa.
A: Magnification is a measure of the size of an image compared to the size of the object. Lenses and cu...
Q: What are some traits that make a good model organism? Describe at least three traits.
A: Answer: GOOD MODEL ORGANISM - It is organism used by the researchers and scientists to do the experi...
Q: Please I need a surely answer and a quicker
A: Drug metabolism refers to the series of steps in which the body breaks down a drug molecule and util...
Q: List the birth control methods discussed in this section thatphysically block sperm from entering th...
A: Reproduction ensures the continuity of species on earth. It can occur in two ways that is sexual rep...
Q: a. spring semester b. fall semester c. either semester
A: spawning is a term to portray the arrival of eggs and sperm into the water section. Under an excepti...
Q: What type of cell division occurs as a megaspore develops into a female gametophyte? Explain.
A: Megasporophyll is the carpel part of angiosperm and divided into 3 portions: ovary, style and stigma...
Q: one picture shows an example solved but i still dont get it , i need help solving the handwritten wo...
A: Restriction enzymes are the enzymes which cut DNA at a specific location called as restriction site.
Q: Please answer completely both questions
A: mRNA transcribed from nucleic acid will be translated into peptide sequence by ribosome. Ribosome co...
Q: The father of two children is type O+, and the mother is type A+. The children are O- and A+. Given ...
A: Human blood type is determined by co-dominant alleles. There are three different alleles for human b...
Q: What is the relationship between non-disjunction, changes in chromosome number and miscarriage? Why...
A: Chromosome abnormalities are of 2 types viz. numerical, where an individual has abnormal number of ...
Q: Identify where sugar oxidation, substrate-level phosphorylation, and the reduction of NAS+ occurs in...
A: Cellular respiration is the process through which organisms assemble oxygen with food molecules. The...
How many cells are in a human body
Step by step
Solved in 2 steps
- Cell membranes consist mainly of a _________. a. carbohydrate bilayer and proteins b. protein bilayer and phospholipids c. phospholipid bilayer and proteinsEnzymes contained in __________ break down worn-out organelles, bacteria, and other particles. a. lysosomes b. mitochondria c. endoplasmic reticulum d. peroxisomesWhich plasma membrane component can be either found on its surface or embedded in the membrane structure? a. protein b. cholesterol c. carbohydrate d. phospholipid
- The plasma membrane __________. a. surrounds the cytoplasm b. separates the nucleus from the cytoplasm c. separates the cell interior from the environment d. both a and cWhich of the following is not a component of the endomembrane system? a. mitochondrion b. Golgi apparatus c. endoplasmic reticulum d. IysosomeHow many different cell types are found in the human body?