4. Compare the metabolic hormonal control that occurs during a fed state to a fasted/stress state.

Q: explain why telomeres at the end our chromosomes shrink as we grow older.

A: Telomere  End of chromosome made up of repetitive non coding DNA.

Q: 2 7 3 8 4 5 10 foramen magnum Figure 7.2 Ventral view of the skull CO

A: Ventral view of skull  1 Premaxillae 2 Internal naris  3 vormer 4 Parasphenoid  5 Orbital fossa  6…

Q: Please give a description of the circulatory disease that occurs with aging and how changes in the…

A: * Hypertension is an condition in which the long term force of blood against artery walls is high so…

Q: How does xenophagy tag bacteria for lysosomal degradation? Mention ubiquitin and galactin-8.

A: Lysosomal degradation in eukaryotic cells is deduced as the destruction of the unwanted proteins or…

Q: Find the gravitational potential energy of a light that a mass of 22 kg and is 5 mabove the ground

A: Potential energy is a  static form of mechanical energy which is common in every part around us.…

Q: The life table below is for a species of lizard. Use it to answer the questions below. It can be…

A: Ecosystem balance, often known as "ecosystem homeostasis," is influenced by both factors that tend…

Q: Unknown virus dsDNA contains 36% AT on a molar basis. What are the mole percentages of A, G and C…

A: Double-stranded (ds) DNA (Deoxyribonucleic acid) is composed of two strands. DNA is composed of…

Q: The figure shows the level of genetic diversity at three loci in two species of elephant seals.…

A: Genetic diversity at a specific locus is affected by evolutionary factors.

Q: Two glucose molecules undergo cellular respiration. Match the end-products of the citric acid cycle…

A: Krebs cycle/Tricarboxylic acid(TCA) cycle/ Citric acid cycle  Main source of energy for cells and…

Q: The table below shows the number of individuals from 4 species of frogs sampled in a pond. What is…

A: Shannon diversity index ( H) is also known as Shannon weaver index. This is commonly used to…

Q: II. Complete the table below. Aerobic Respiration Anaerobic Fermentation Respiration Site Pathways…

A: Respiration pathways :- comparison of aerobic, anaerobic respiration and fermentation.

Q: What do you call a finger-like projection that arises from epithelial layer in some organs that…

A: Answer

Q: how can bones be classified based on their shape and size?

A: Introduction :- Bone is a type of living tissue that makes up the skeleton of the human body. There…

Q: Which of the following DNA samples has the highest melting temperature in its double- stranded form?…

A: Melting temperature of dsDNA is the temperature at which hydrogen bonds are broken and both the…

Q: What do enzymes do to chemical reactions? How does the previous activity simulate enzymes and…

A: Enzymes are protein molecules acting as biological catalysts that are able to accelerate the rate of…

Q: Please list 2 factors which could make the construction of a human pedigree difficult

A: Various factors, including genetic makeup, exposure to harmful substances, other environmental…

Q: What is the importance of cell mosaicity?

A: The cell mosaic model describes the cell membrane as a tapestry of several types of molecules…

Q: The life table below is for a species of lizard. Use it to answer the questions below. It can be…

A: Answer :- This species have Type III survivorship

Q: Which of the following statements about genetic drift is correct? Genetic drift causes predictable…

A: Genetic drift is an evolutionary change in the allelic frequency of a population as a matter of…

Q: Media that prohibits the growth of some types of bacteria, but has no reaction to bacterial growth…

A: Introduction Microbiological media, often known as bacterial culture media, is a bacterial growth…

Q: Draw the chemical structure of the 5’ end of nascent RNA transcript in bacteria.

A: DNA (Deoxyribonucleic acid) and RNA are two examples of nucleic acids (Ribonucleic acid). To…

Q: Why has the human population continued to grow despiteenvironmental limitations? Give one example of…

A: Introduction  As all species need water, shelter, nutrients, food, etc. to survive and all these…

Q: Which of the following agricultural practices can increase water pollution? a) Manual cultivating b)…

A: Introduction Agricultural practises are a set of concepts that can be used to farm production…

Q: In a population of 466 individuals, a locus has two alleles: T and t. If 108 individuals have the tt…

A: The locus has two alleles: T and t. TT, TT and tt genotypes are present in the population.

Q: Antibiotic resistant bacteria evolve by natural selection. How does this process work? The…

A: Bacteria are microscopic single-celled organisms that can be found in almost every type of…

Q: 91) The NDV virus a. The mesogenic ND is less virulent than lentogenic than NDV b. The antigenomic…

A: NDV virus (Newcastle disease virus) :-

Q: Which of the following is a known characteristic or procesds that can lead to genetic changes in…

A: A virus is an infectious agent of small size and simple composition that can multiply only in living…

Q: A signaling molecule M is active when it is phosphorylated (M-P). The M-P has downstream target…

A:

Q: How many protons would be pumped across Complex l if three molecules of NADH were fully oxidized at…

A: Introduction An electron transport chain is a collection of protein complexes and other molecules…

Q: In a population with two alleles at the R locus (R and r), the frequency of the genotype rr is 0.17.…

A: Hardy-Weinberg Equilibrium is a concept that serves as a benchmark for researchers to analyse gene…

Q: 3. Consider the chromosome pattern AAAXXY in Lychnis. What sex is this? a. Male b. Male with…

A: Chromosomes are thread-like structures found within the nucleus of both animal and plant cells.…

Q: d. Mimiviruses

A:

Q: Which of the following is not necessary to cause evolution by natural selection? Phenotypic…

A: Introduction  Evolution is the key process that regulates the survivability and continuity of…

Q: A virus (bacteriophage) attaches to a host bacterial cell, inserts the viral DNA into the cell.…

A: Bacteriophages are viruses that infect bacteria.

Q: Many species of hover flies have black and yellow coloration that closely resemble the coloration of…

A: Introduction A species is a group of animals, plants, or other living things that can reproduce…

Q: You obtained a sample of double-stranded DNA and transcribe mRNA from this DNA. You then analyse the…

A: Introduction Deoxyribonucleic acid (DNA) is a polymer made up of two polynucleotide chains that coil…

Q: Provide a detailed explation of telomeres in cell aging

A: Chromosomes are represents the genetic material of humans, it is a thread like structure.…

Q: Based on these results, which of the following statements is true regarding the effectiveness of…

A: A disinfectant is a chemical substance or compound that is used to inactivate or destroy the…

Q: How did the ideas of Thomas Malthus influence Darwin's thinking about evolution?

A: Thomos malthus have proposed the theory that says increase in population may result in depletion of…

Q: One factor that influences the diversity and/or composition of the microbiome, for example, age,…

A: Microbes are both beneficial and potentially dangerous and make up the microbiome. The majority are…

Q: This is the Keeling Curve, the record of atmospheric CO2 as measured at Mauna Loa, Hawaii, over the…

A: Keeling curve It is named after the scientist Dr Charles David keeling who developed it. It is a…

Q: The biological carbon pump is mainly driven by large trees   small phytoplankton like…

A: Introduction In its most basic form, the biological pump, also known as the marine carbon pump, is…

Q: 7) The herpesviruses: a. Have three round of protein translation in its replication cycles, one…

A: Herpes simplex virus is usually related to the sexually related disease. This virus is transferred…

Q: You study a population of mussels recently introduced to a section of the Rideau River 8 years ago.…

A: The population of a place is the number of organisms living there.

Q: when one examines the pattern of inheritance of a trait and finds that it is transmitted from…

A: Sex linked inheritence Sex link inheritance means the jeans for characters other than sex are…

Q: explain how the Lac operon gets turned on and off .

A: Introduction :- Three structural genes, as well as a promoter, a terminator, a regulator, and an…

Q: Janet is doing a Gram stain on a mixed culture that is known to contain both Gram positive and Gram…

A: The Gram staining procedure in bacteria is depends on the chemical properties of cell wall. In Gram…

Q: A botanist discovers a new species of plant in a tropical rain forest. After observing its anatomy…

A: The plant kingdom is classified into Algae, bryophytes, pteridophytes, gymnosperm and angiosperms.

Q: The cisternal space of ER is continuous with prenuclear space between the two membranes of the…

A: Introduction The endoplasmic reticulum is the eukaryotic cell's transportation system, as well as a…

Q: You're studying two lakes in neighboring valleys in the Cascades. One lake has a food web with three…

A: Energy flow occurring in the ecosystem can be referred to as a fundamental ecological principle. The…