What do you think is the most important type of variation and why? (Choose only one - Morphological, Physiological, Behavioral or Sexual.)

Q: Castrated boar will help to detect which sows are in heat? True or False

A: Introduction Castration is the removal or inactivation of the testicles of a male animal and Castrat...

Q: What best describes the hind leg bones seen in the whale? Leg bone Analogous structures to the fins ...

A: Evolution is a steady phenomenon that brings about the transformation of simple life into complex li...

Q: Activity 7.2: Directions: Complete the diagram by filling up the words from the box. Energy Flow Ino...

A: Ecosystems require a constant supply of energy to power biological processes and replenish energy lo...

Q: The siRNA and miRNA pathways share many similarities and also have some differences. Which of the fo...

A: The gene regulation by using small single standard RNA is mediated by the functioning of siRNA and m...

Q: Orangutan sexual dimorphism includes fat deposits on the male head and face. True or False

A: In the realm of apes, orangutans are special. Just the orangutan, out of the four types of nonhuman ...

Q: Which bacterium does not contain deaminase enzyme O A. Proteus O B. Morganella O C. Providencia O D....

A: Answer :: A) Proteus mirabilis a bacteria produces the enzyme urease, which converts urea into ammon...

Q: Which category of classification has the largest variety of organisms? Group of answer choices class...

A: Classification is a way in taxonomy to classify organisms depending upon their charechterstics.  Cla...

Q: Question:- The speckled warbler is a small, declining, woodland bird that is restricted to intact f...

A: An ecosystem is a natural community of living beings that deals with the external environment and ot...

Q: What are all of the checkpoints found in interphase and mitosis and what are their functions/purpose

A: Eukaryotic cells follows a cyclical events during cell division that is known as cell cycle that con...

Q: hat are two common defects related to cell division that cause cancer

A: One of main defect is mutation for cancerous cells that can result in the cell becoming overwhelmed ...

Q: Oldowan tools were used by at least one australopithecine species. True or False

A: Answer is true The evolution of Homo habilis was most likely aided by behavioural and nutritional ch...

Q: Keystone Species Microbiome Diversity Plant Diversity

A: The foundation(establishment) (1) or misfortune (loss) (2) of a cornerstone animal varieties (number...

Q: In imaginary (thank goodness) forced feeding experiments, some very unethical scientists determine t...

A:  LD50 or lethal dose 50 is the amount of a substance that is needed to kill half of the test populat...

Q: Chose the incorrect statement from below. Select one: O a. Protein stability and subsequently benton...

A: with increasing alcohol content, protein stability does not increase.

Q: Define the term RNAi.

A: Recombinant DNA technology (rDNA technology) is extremely useful for analyzing a species' entire gen...

Q: Radiation kills bacteria through. O A. inducing DNA fragmentation O B. inducing drought conditions O...

A: Introduction: Bacteria is a single celled prokaryotic organism. Their cell structure is simpler than...

Q: Give the NADH, ATP and FADH production from each part of photosynthesis?

A: "Answer: Plants being living creatures also need food for their survival and by the use of sunlight ...

Q: Three fruit shapes are recognized in the summer squash (Cucurbita pepo): disk-shaped, elongated, and...

A: Genes are the hereditary units of life. The inheritance pattern was introduced by Gregor Mendel, aft...

Q: How is blood typing for the ABO system and the Rh usually done?

A: Blood typing is the process of identification of blood type and Rh-factor identification. The blood ...

Q: Ciana martin Polygenic Traits Worksheet 1. Cross a green parakeet (BbYy) with a white parakeet (bbyy...

A: Punnett square- is developed by darwin to identify all the genetic trait of an organism.  Phenotype ...

Q: . Perform the Fork-lined method of the given alleles. A male having a characteristic of TtSsYy and a...

A: A trait is basically characteristic unique to particular individual . A trihybrid cross is a cross i...

Q: A cell has 6 chromosomes, after mitosis, one daughter cell has how many chromosomes? O 2

A: In organisms, mitosis is very much essential for tissue repairing, growth of organisms, development ...

Q: An organism’s relative fitness is measured by its ______. Group of answer choices Mutation rate Gene...

A: Relative fitness: A measurement of biological fitness in which a genotype's or phenotype's reproduct...

Q: 3. In human's premature gray hair is dominant over normal hair coloring. Cross a homozygous prematur...

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous c...

Q: It is the normal and most common trait in a natural environment. O wild-type O mutant O recessive

A: All living and non-living things that occur naturally, that is, not artificially, are included in th...

Q: One of the features of the Acheulian stone tool industry is that the tools were made from stone that...

A: Acheulean (Acheulian) stone tool industry produced stone tools during the Lower paleolithic era acro...

Q: The only primates with prehensile tails are New World Monkeys. True or False

A: New world monkeys are called Platyrrhini. New world monkeys diverged from old world monkeys (Catarrh...

Q: * Evergreen plants A. Multiple Cycles + Monocarpic plants B. Once in life span A Perennial plants C....

A: 22. Monocarpic plants are flowering only once and they die after flowering and fruiting. 23. Certain...

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A: There are few points that should be kept in mind: Each diploid has two alleles for a trait : Homozy...

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A: Alleles are the alternative forms of the genes present on the same locus on homologous chromosomes ....

Q: Q2:Skeletal analysis of Neanderthals suggest that they were physically adapted to cold weather envir...

A: INTRODUCTION Neanderthal man They are extinct species of moder human. They are seen in Eurasia about...

Q: thin and thick blood smear analysis, what are the necessary QC involve to check and assess the integ...

A: A thick blood smear is a drop of blood on a glass slide. A thin blood smear is a drop of blood that ...

Q: Describe two practical and personal applications of your knowledge about the integumentary system.

A: The integumentary system includes dermis, epidermis, hypodermis, hairs and nails. 

Q: 1. Which pair of animals in numbers 1-3 belongs to a common ancestral group? Explain your answer. 2...

A: Evolution is process of development of plants and animals over thousands of year from simple to adva...

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A: New study reveals that on the Hawaiian island of Oahu, where native birds have been completely suppl...

Q: A diploid cell has 4C genetic material and 16 chromosomes at the start of cell division. Determine:

A: Note: As per Bartleby Guidelines For Remaining Answers Please Repost The Question. Introduction: Chr...

Q: Which of the following terms refers to changes during developments to serve a specific function? O d...

A: Introduction :- Morphogenesis is a biological process that controls the spatial distribution of cell...

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A: In normal case, E. coli is normally found in the intestinal tract of human and animals. It is an fac...

Q: 21. The binding of aspartate to different subunits of ATPase is an example of a. Negative cooperativ...

A: The activity of allosteric proteins/enzymes is explained by two prominent models. Monod, Wyman, and ...

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A: Ecological threat: The term describes the risks due to activities that may affect the environmnent. ...

Q: In which cell would you expect to find the most Golgi bodies? a. Cardiac muscle b. Epithelia cells c...

A: Introduction Golgi body:- A Golgi body, also known as a Golgi apparatus, is a cell organelle which i...

Q: What is Lamarck's Theory of Need? Please give a brief explanation.

A: The different theories of evolution were provided by different scientists. Today we accept the Darwi...

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A: All organisms are composed of numerous cells. Cells are the functional and the structural units of t...

Q: What is the function of mucus in preventing infections? Group of answer choices To stimulate the com...

A: Mucus is a aqueous layer that is secreted by the mucous membranes. 

Q: I need help with 8-9

A: Male has XY chromosomes & females have XX chromosomes. While fertilization, zygote gets one chro...

Q: Compare cytokines in plant and animal cells

A: Cytokinesis is the division of the cytoplasm of the cell. It happens after karyokinesis(division of ...

Q: Stem cell lines are developed from O multipotent cells O inner cell mass cells from a blastocyst cel...

A: Stem cells are pluripotent cells. They can be preserved for future generation, to store human genes....

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A: C4 Pathway It was Hatch and Slack , who discovered the C4 pathway in 1966. Plants that are adapted t...

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A: The cardiac muscle tissue contracts during systole that pumps the blood out of the chamber. The hear...

Sexual Motivation

Sexual motivation refers to a person's overall desire for sexual activity. It is an unusual motivation. Generally, among lower animals, the term 'drive' is commonly referred to as sexual motivation. It means a certain internal force drags the animal to be involved in reproductive behavior. On the contrary, humans are not simply driven by any internal force; rather, the sexual motivation in humans is due to several factors such as biological (hormones, genes), environmental (familial upbringing, chemical exposure) and physiological factors (culture, desire) which further determine engagement in sexual activities.