Circulatory System 1. Why are the ventricles more muscular than the atria? 2. What valve prevents the backflow of blood from conus arteriosus to the ventricle?

Q: Explain why an individual secretes less urine on a hot and humid day even though they are consuming…

A: Introduction :- Urine is a liquid waste product of human and other animal metabolism. Urine travels…

Q: Secretors (genotypes SS and Ss) secrete their A and B blood group antigens into their saliva and…

A: Given: Secretors (genotypes SS and Ss) secrete their A and B blood group antigens into their saliva…

Q: Jimsom.  weed plants can produce purple or white flowers and spiny or smooth seed pods. A purple…

A: Given  Parent 1 phenotype - purple spiny Parent 2 phenotype - white spiny    Cross result 89 purple…

Q: Match the plant parts with the best description. ___ vascular cambium         a. ground tissue in…

A: There are different parts of plants that have distinct functions. These parts include seeds, leaves,…

Q: Which of the following statement does NOT conform why cardiovascular diseases (CVD) are considered…

A: The term cardiovascular disease refers to any ailment that affects the heart or blood vessels. It's…

Q: 1. Which of the following is true? A. Carnivores eat both animals and plants B. Omnivores eat both…

A: Introduction :- A carnivore is an organism that eats predominantly meat or animal flesh. Carnivores…

Q: Which statement is not true of endoplasmic reticulum? A. There is smooth and rough endoplasmic…

A: The endoplasmic reticulum (ER) is a network or reticulum of tiny tubular structures scattered in the…

Q: Consider the following hydroboration/oxidation of an alkene. 1. ВНа, THF -СНз 2. Н,Ог. NaOH, H2O H…

A: ANSWER;- Options A is correct

Q: Suppose gene B is X-linked and is embryonically lethal when homozygous or hemizygous recessive. A…

A: Let us first discuss the terms used in the question, Homozygous:- A condition when two copies of an…

Q: Which is NOT true of attachment or adherance? may be due to fimbriae Omay be due to capsules…

A: ANSWER;- only normal microbiota can attach Explain;- Any microbiota with a hook and sucker can…

Q: are phospholipids with serine at Coe that form rafts that float about within the membrane.

A: Introduction  Glycosphingolipids, cholesterol, and protein receptors are organised in…

Q: You observe organelles moving within the cytoplasm of a cell and conclude that this movement must be…

A: Organelles moving within the cytoplasm of a cell.

Q: difference between veld and cultivated pasture

A:

Q: 3) Describe "hub" molecule pyruvate that serves different pathways. Explain metabolic regulation…

A: Introduction: In mammals, metabolic regulation refers to the process through which metabolic…

Q: In Drosophila, the following genes and mutations are known: Wingsize – recessive allele for tiny…

A: Alleles are the alternative form of gene that are located on the same locus of homologous chromosome…

Q: If you were to remove the ER retrieval signal fromprotein disulfide isomerase (PDI), which is…

A: We got the information of first type in carboxyl terminus of soluble ER proteins and in golgi…

Q: In a couple paragraphs, describe the connection and correlation between the red-shouldered hawk, the…

A: Introduction A statistical approach for determining the relationship between quantitative and…

Q: When the inspiratory neurons of the ventral respiratory group are actvated, impulses travel along…

A: The diaphragm contracts and deflates upon inhalation, while the chest cavity expands. A vacuum is…

Q: All of the following may be important keystone species due to their roles as pollinators EXCEPT:…

A: Keystone species are any species whose removal or reduction from an ecosystem adversely affects the…

Q: The renal pyramids appear striped because they are made up of parallel bundles of the collecting…

A: The kidney is divided into a cortex and an inner medulla. The medulla is further divided into…

Q: Set 3: Mutagens 51) breaks the sugar-phosphate backbone of DNA A) ultraviolet light 52) cause…

A: 51. C. Ionising radiations 52.  E. Frameshift mutagens 53.  B- Nucleotide analog 54. A,. UV rays 55.…

Q: Identify three cells. Each cell should be in a different stage of mitosis. For each cell, annotate…

A: Cell cycle is divided into two phases -  1. Interphase 2. M-phase (mitotic phase) In the interphase…

Q: To explain: The impact on the phenotype of common wall cress (Arabidopsis thaliana) as a result of a…

A: Mutation is a permanent variation of some nucleotide sequences in an organism's genome that can…

Q: 6.3.7 Activity 6.1 (1) List and briefly explain four methods of studying an E-S complex. (2) (a)…

A: Introduction When an enzyme comes into complete contact with its substrate, a temporary molecule…

Q: List 1 List 2 (A) cadherin 1) desmosomes (B) cellulose 2) cell wall (C) collagen 3) gap junctions…

A: Cadherins are the adhesive molecules that help in cell to cell adhesion or joining. Cellulose is the…

Q: b) In eukaryotes, the newly synthesized mRNA undergoes modifications before it is transported across…

A: In eukaryotic cells, transcription is a process in which genetic information in the DNA is converted…

Q: What is the difference between natural and acquired immunity?

A: Immunity is the ability of the body to defend itself against disease causing organisms.   Everyday…

Q: Which of the following is an example of the respiratory and circulatory systems working together?…

A: The respiratory system brings oxygen into the body and removes carbon dioxide from the body via the…

Q: TOTAL MICROBIAL NUMBER OF DRINKING WATER (ACCORDING TO SANPIN REQUIREMENTS 2.1.4.1074-01) IN 100 ML…

A: A sufficient, clean, and safe drinking water supply must be provided for varied consumers as a…

Q: 27. A CD8 cell will bind with a A MHC I receptor B. MHCII receptor

A: Answer

Q: 1. What are the largest living plants? 2. What is a taproot? 3. What does the bark do?

A: Forests are the complex ecosystem consisting of mainly trees, it helps in buffering the earth and…

Q: The nucleotide sequence of one DNA strand of a DNA double helix is 5’-GGATTTTTGTCCACAATCA-3’.What is…

A: Introduction DNA is an organic molecule that includes genetic information as well as instructions…

Q: 16. Identify each event found below as a homeostatic response or not a homeostatic response.…

A:

Q: A 3S Center that is a project of Valenzuela City is what category of health care delivery system? 35…

A: There are three levels of healthcare delivery system. These are: Primary Secondary  Tertiary

Q: BACTERICIDE LAMPS OF A CLOSED TYPE SHOULD BE INSTALLED IN 1. premises for pharmacy visitors 2.…

A: Introduction UVGI (ultraviolet germicidal irradiation) is a disinfection technology that kills or…

Q: Operon X produces three enzymes that convert Compound A to Compound B. The R gene makes the…

A: Gene expression is given on the basis of RNA. It is a process through which there is turning on of…

Q: please explain Bacillus cereus and its  shape, arrangemnet, why indole test, starch hydrolysis test,…

A: The infection caused by B. cereus is usually self-limiting and does not require treatment. The…

Q: In phloem, organic compounds flow through ______ .a. collenchyma cells c. vesselsb. sieve elements…

A: Organic compounds are the compounds that are a build-up of carbon and hydrogen. In plants, phloem…

Q: Pyrimidines are single ringed structures which include the nitrogenous bases O guanine and adenine O…

A: Nitrogen bases These are also known as nucleobases and these are the building blocks of nucleic…

Q: 1. What structures constitute the wood? The bark? 2. What causes the increase in diameter of an old…

A: Introduction Plant:- A plant is a living thing that grows in the earth and has a stem, leaves, and…

Q: Salient similarities are found in cell divisions. For instance, which phase of meiosis I is most…

A: Cell division is a phenomenon in which parent cell undergo splitting process and gives rise to novel…

Q: True or False. If drug A produces a larger zone of inhibition than drug B on the Kirby-Bauer disk…

A: Introduction If drug A does produce a larger zone of inhibition, that is one positive attribute of…

Q: insulin Diabetes mellitus is a hormonal disease that causes the cells of the body to not take up…

A: Diabetes is a long-term illness affecting the way your body converts food into energy. The majority…

Q: Why are okazaki fragments necessary on the lagging strand?

A: Okazaki fragments are necessary for the replication of both strands simultaneously. As DNA…

Q: A vascular bundle in a leaf is called_____ . a. a vascular cylinder c. a vein b. mesophyll d.…

A: The leaf is mostly the green structure present on the branches of plants.

Q: mucus cell (arrow d) in simple columnar epithelium a B. the plasma membrane(arrow a), a nucleus…

A: Answer

Q: describe the steps you would take in investigating the outbreak, including the measures you may…

A: Marburg virus disease is a highly virulent disease that causes haemorrhagic fever, with a fatality…

Q: Treatment of cells with a drug that blocks the function Ran-GAP would result a. the accumulation of…

A: Proteins are transported into and out of the nucleus by nuclear pore complexes, which entail a…

Q: Name and describe in DETAIL the three steps of translation.

A: The genetic material DNA contains all the necessary information needed to sustain life, half of the…

Q: A good number of snail population in the stagnant waters between rice paddies is growing under…

A: Population Density:  The total concentration of individuals of a species within the same geographic…