MULTIPLE CHOICE 8.Which animal does not exhibit indirect development? a.Butterfly b.Bat c.Frog d.Fish 10.When the effector response reduces the initial stimulus causing a halt in the response, the process is in the negative feedback loop. When the body reinforces the stimulus and leads to an even greater response, then a positive feedback loop is done. a.True b.False 16.Which does not describe maturation stage in plants? a.increased vacuolation b.cell wall thickening c.lignification d.protoplasmic modification

Q: of biodegradation of organic contaminants. I

A:

Q: The Zika virus is particularly dangerous for old people because the virus can cause microcephaly in…

A: Zika is a virus that a person can catch through the bite of an infected mosquito.The most common way…

Q: Describe the molecular mechanisms involved in P53’s role as a tumor repressor protein

A:

Q: What are the similarities and differences between retroviruses and retrotransposons? It has been…

A: Retrovirus:- Retrovirus is a group of RNA viruses which function by inserting a DNA copy of their…

Q: 14. The thin stalk of the stamen Anther 1- Style Stigma Filament 2- 3- 4-

A: Pollination refers to the transfer of pollen grains from the anther of male flowers to the stigma of…

Q: Which of the following situations is a density - dependent limiting factor? Choose only one. -…

A: Introduction Density-dependent limiting factors tend to be biotic—having to do with living…

Q: How do fermenting microbes derive energy for themselves in the form of Adenosine Triphosphate (ATP)?…

A: Respiration  The process in which organisms produces energy molecule ATP by utilising glucose or…

Q: Figure 2. This image corresponds to question 17. 17a. Name the tissue 17b. What are the names of the…

A: 17a. cartilage tissue 17b. Chondrocytes

Q: You genetically engineered a cell to no longer contain the extracellular domain of an integrin. What…

A: This question is based on the interim and it's ability to bind to the cells.

Q: 11. Structure that carries the sperm cells 1- Filament 2- Stigma Style 4- Pollen 3-

A: The filament is the part of the stamen that contains filament and anther. It is the male part of the…

Q: Would the oligonucleotide primers used in Lab 3 to detect the GFP transgene and GFP MRNA also detect…

A: Plants can spread mRNA silencing from cell to cell as well as over greater distances from roots to…

Q: Which of the following happens within the sarcomere during muscle contraction?     The myosin…

A: Answer :- Option (A) is correct. - The myosin filaments "walk" along the actin filaments…

Q: What term did Lamarck use to explain how new species emerged

A: Jean-Baptiste Lamrack was a French naturalist, who believed if the body parts were not being used,…

Q: 1) You would like to clone a gene by PCR. The sequence of the two ends of the coding strand for the…

A: A laboratory technique for amplifying DNA sequences is polymerase chain reaction (PCR). The approach…

Q: significance of DNA packaging in the inheritance and transmission of traits.

A: DNA the deoxyribonucleic acid is the hereditary molecule responsible for the transfer of genetic…

Q: Cell were equally distributed into two culture dishes containing bovine serum. One culture dish was…

A: Ans- B) The cells with the blocking antibody would not be able to attach to the plate and would not…

Q: QUESTION 13 What is the mechanism by which microtubules can rapidly shrink, or undergo â…

A: Introduction  The cytoskeleton is the intracellular network of the proteins fibers that helps in…

Q: Species that are closely related exhibit similarity in embryonic development O Species that are…

A: INTRODUCTION  Evolution is the change in the biological and physical characteristics of animals or…

Q: For each of the following include three of the most important features of that organ system and one…

A: Organ system is the system in which group of organs work together to carry out more functions.

Q: QUESTION 5 Which of the following is NOT true of intermediate filaments?   A They provide…

A: A cell is the basic unit of life.  All living creatures are made up of cells, ranging from…

Q: Using the Genetic Code Table in Figure 1.3, what is the proper sequence of amino acids in the…

A: DNA ( Deoxyribonucleic acid ) is two stranded ladder like structure which act as genetic material in…

Q: Given the following DNA sequences for cytochrome c, answer the question below. In one paragraph,…

A: Very closely related species have more amino acid sequence similarities in the same protein. The…

Q: Question:- Explain why withholding galactose from the diet of galactosaemia patients has no effects…

A: The oligosaccharides are produced in the endoplasmic reticulum and are transported to the protein…

Q: Drag the labels onto the diagram to identify the structural protein components of thin filaments. Z…

A: The most significant organelle is the cytoskeleton. Without it, all of the other organelles inside…

Q: Basha: A blood type, blue eye color, normal skin condition, carrier of cystic fibrosis gene, and…

A: What is asked in question is not clearly expressed however I am trying to give you answer.  eye…

Q: 15. Sticky structure where pollen enters the pistil Style Stigma 1- 2- Anther 3- Ovary 4-

A: The most common parts of the flower include  Pistil  Stigma  Style  Ovary Stamen Anther  Filament…

Q: Gene duplication

A: Gene Duplications arise from an event termed unequal crossing-over that occurs during meiosis…

Q: Focus on discussing why populations of honey. bees started to decline during the 1940's. Take into…

A: There are many reasons for the honey bees population declination in the 1940s. Some of them are…

Q: Select 2 types of platyhelminth and describe the following: class characteristics development

A: * platyheminthis called  flatworm which are flattened invertebrates containing soft body *Most…

Q: Describe the procedure for performing a Gram stain. What is the procedure? How does each component…

A: * Gram staining is used to test that whether f bacteria is positive or negative and also be used to…

Q: 1.Cytochalasin is a drug that caps actin filament plus ends, thus preventing actin polymerization.…

A: Actin is a protein that is one of three components of cellular filaments: intermediate filaments,…

Q: Is it okay to write genotypic ratio as 2:2 or it should be 1:1 Genotype: IAIB, IAi

A: A genotype of an organism is the genetic makeup of the organism with respect to the trait being…

Q: Mammals are the most successful & dominant animals today" Give evidence.

A: Any vertebrate animal whose young are fed milk from the mother's specific mammary glands, known as a…

Q: 1. Cornicles of aphids produce defensive chemicals and do not produce honeydew. 2. Diptera has…

A:

Q: There are five major classes of antibodies. Complete the three below.

A: An antibody, also known as an immunoglobulin, is a large, Y-shaped protein used by the immune system…

Q: Draw a perfect G-quartet and label all the atoms

A: G-quartet are the secondary structures which remain present in the nucleic acids. G- quartet…

Q: A population of 40 asters segregating at two loci with two alleles each (A/T and G/C) has 8…

A: Here we calculate the coefficient of gametic disequilibrium, D and value of Lewontin's D'. Given…

Q: What happened to the recessive alleles in this following scenarios: A. Complete zygotic selection…

A: Selection (s) against the recessive is relative compared to the dominant types. The proportion…

Q: Which of the following is a true statement? A. The concentration of oxygen in water is greater than…

A: Answer D- Mammalian lungs require the diaphragm because the lungs are relatively stiff and filled…

Q: Discuss osmotic balance in freshwater and saltwater fishes.

A: Osmoregulation is the ability to maintain an internal balance of water and salt. Kidney plays an…

Q: Mammais are the most successtul & d ominant animals today" Give evidence.

A: INTRODUCTION The change of biological and physical characteristics of the organisms depends on the…

Q: what molecules can prevent anabolic steriods form working?

A: It acts by promoting nitrogen retention in muscles, leading to an increase in muscle size, and…

Q: Calculate: Total mag. Real size Diagram mag. Diagram actual size.

A: In a typical structure of onion cells there is nucleus , cell wall , cytoplasm ,and vacuole . We…

Q: Blucose are stored in the form of glycogen and any excess will be stored in the form of…

A: FALSE

Q: Members of which phylum are known as "segmented worm" Write about their body symmetry, mode of…

A: Members of phylum annelida are known as segmented worms. Multiple segments make to the fundamental…

Q: What's the probability that these two parents have an albino child

A: Albinism is the one type of genetic disorder. In the albinism their is a absence of any pigmentation…

Q: Which of the following provide clues that a particular DNA sequence is part of protein-coding gene?…

A: A protein-coding gene is a DNA sequence that instructs the cell to create a specific protein.…

Q: Describe the sub-aerial modifications of the stem.

A: INTRODUCTION Plants are the living things that produce grains, fruits, medicines, timber, etc for…

Q: Which characteristics demonstrate that sea anemones are animals and not plants?

A: Introduction Sea anemones are a group of predatory marine animals of the order Actiniaria, It is…

Q: Members of which phylum are known as "segmented worm" Write about their body symmetry, mode of…

A: Members of the phylum Annelida are also referred to as segmented worms because of their segmented…

Animal Behavior

Animal behavior can be defined as all the things that animals do. In response to a stimulus, an animal performs a certain fixed action pattern, or FAP, of behavior. This response occurs to make the animal more adaptable to change. So, behavior is generally a stimulus-oriented response. A behavior is an expression of the capabilities of the nervous system. A stimulus is determined by the environment, while the nervous system determines a response.