How do you think the evolution of mammals (including the emergence of humans) might have been different if the K-Pg extinction never happened?

Q: List the attributes that populations but not individuals possess.

A: A population can be defined as a group of individuals belonging to the same species who live in a…

Q: What are the different stages of the follicular phase of the menstrual cycle taking place in ovary…

A: menstrual cycle- it is cycle of  monthly changes a woman's body under go through in preparation for…

Q: What is nature inspired carbonmaterials? Describe the synthesis of corn-cob derived carbon from corn…

A: The term “nature-inspired” is associated with a sequence of efforts to understand, synthesize and…

Q: Question: A rapid COVID antigen test: may result in a false positive if you test too early. detects…

A: COVID antigen test is used to detect the presence of SARS-CoV-2 viral proteins in our body directly…

Q: Most living organisms cannot survive at temperature above 45°C°. How are some microbes able to live…

A: Introduction We will answer the question in below step.

Q: Darwin observed that individual variation can lead to more reproductive success in the struggle for…

A: Adaptations are characteristics that give individuals that have more children an advantage.

Q: What is a human heart made up of? a) Tissues b) Muscle c) Skin d) Bone

A: The heart's ventricles will not eject all of its blood. Before each ejection, it maintains a…

Q: explain why subspecies are important in the field of taxonomy. Also explain why some taxonomist do…

A: *subspecies means one of two or more populations of  species living in different subdivisions…

Q: What are algal blooms, what impact can they have on aquatic ecosystems, and what can be done to…

A: Algal blooms occur when colonies of algae grow out of control and produce toxic effects on living…

Q: image of the cross-section of a spinal cord would show “anterior (or ventral) horns”. What is in…

A: NOTE: “Since you have asked multiple question, we will solve the first question for you. If you want…

Q: KARYOTYPE #9 (IIEMI ID L MIE I DA ED

A:

Q: In a mimimum of 25 sentences explain why subspecies are important in the field of taxonomy. Also…

A: Subspecies are group at the principal phase of speciation; people of various subspecies at times…

Q: Define the concept of a person’s gender. What factors determine gender?

A: Introduction Gender refers to the socially constructed qualities of women, men, girls, and boys.…

Q: 22% 15% YOUR FOOD YOUR STUFF 25% GETTING AROUND 22% YOUR HOME 16% SERVICES START ORDER the food that…

A: * As we seen in the pie chart we can observe that the 22 percentage of carbon emission is due to out…

Q: S How to make a RISE IN TEMPERATURE Nov

A: 1) Seeds respire while germinating , energy released during germination process and heat is produced…

Q: Why are planktons important in the food chain?

A: Answer

Q: completely wraps the cavity is called: a) coelom b) pseudocoelom c) acoelom d) Archenteron e)…

A: 5th answer is b

Q: Explain the concept of an evolutionary tree. Also, explain why it is significant.

A: Evolutionary tree, which is also known as phylogenetic tree, is a diagrammatic depiction of distinct…

Q: A farmer notices that plants growing closest to his house are shorter than those growing further…

A: * For growth of plants the minimum factors should be required for its growth or else plant will not…

Q: Describe the general organization of a eukaryotic chromosome. What structural role do scaffold…

A: DNA or Deoxyribonucleic Acid is the genetic material in almost all higher animals, including humans.…

Q: Q.5. Which reproduction related aspects, should be taught at the school level?

A: A reproductive and child healthcare program is developed with the aim of improving maternal, infant,…

Q: Proteins such as Dicer and RDE-R are involved in RNAi inactivation of target gene expression and are…

A: RNA is a molecule that plays a central role in the process of protein synthesis. RNA is made up of…

Q: What are the Ecological implications of Leaf economic spectrum in plants?

A: There are few important points that should be kept in mind :  Functional traits of leaf and global…

Q: What are the generally recognized cultural stages that human populations have experienced?

A: Humans are the first animals to go through organic, cultural, and social evolution. Humans are the…

Q: There are dozens of common variations of the c-myc gene, which are associated with different types…

A: The mRNA is produced from the DNA by the transcription process and this mRNA is used for the protein…

Q: The most acceptable model of the cell membrane is that of, and ---

A: Plasma membrane or also known as cell membrane is the outer membrane found in all the cells that…

Q: Nutrition has been one of the major problems that our country is facing most specially in this time…

A: 1. All organic naturally occurring molecules are classified into 4 general categories: carbohydrate,…

Q: Organelles may exhibit membrane sidedness such that secretory vesicles from the ER are transported…

A: Golgi complex  Golgi complex is the double membranous structure which pack protein into vesicles and…

Q: What are the semiotic of how gays are portrayed in the music video "Sirena" by GLOC-9 and the…

A: Answer ::   The arrangement and relationships of all elements within a shot and the sound of a scene…

Q: Transport of lipids in blood involve lipoproteins which includes the LDL and HDL commonly referred…

A: Lipids are the organic compounds that are insoluble in water. It includes fat, oil, wax and…

Q: (i) IncRNA (ii) miRNA

A:

Q: minimum of 25 sentences, explain the concept of mimicry in relation to taxonomy and why it is…

A: Mimicry is a developed resemblence between an organism and another object, frequently an organism of…

Q: Give a brief account of viruses with respect to their structure and nature of genetic material. Also…

A: Viruses are sub-microscopic infectious agents that can infect and destroy all living organisms on…

Q: Identification

A: The action of regulating salt and water balance (osmotic equilibrium) through barriers in the body…

Q: Cellular respiration involves the use of oxygen from the respiratory organ to release most of the…

A: Cellular respiration  It refers to the set of metabolic reactions that occur in the cell of…

Q: During osmosis, there is water moving passively against its own concentration gradient as a result…

A: During osmosis, there is water moving passively against its own concentration gradient as a result…

Q: Communications between cells is facilitated by the presence of

A: There are many cells in our body. Each cell needs to communicate with the other. This means the…

Q: Enzyme increase the activation energy of the reactants to speed up the reaction.

A: Introduction Enzymes are proteins that enable metabolism, or chemical reactions, go more quickly.…

Q: Q.1. Describe any three assisted reproductive techniques practised to treat infertility.

A: Infertility is treated with assisted reproductive technology (ART). Fertility treatments are usually…

Q: Rainforests have over ______of all species of plants and animals on earth. A. a quarter B. Half C.…

A: Rainforests are forest ecosystems characterized by high levels of rainfall, an enclosed canopy and…

Q: During the aerobic cellular respiration, where do ATP molecules form?   a. Cytosol only b. Cytosol…

A: Answer is (a) cytosol only

Q: Question 8 Biological waxes are composed of glycerol and only one fatty acid a fatty acid and a long…

A: Biological waxes are modified neutral lipids from any organism or plants. Biological waxes has…

Q: How do bacteria on the MEGA-plate become resistant to antibiotics?

A: Introduction An antibiotic is a medicine that inhibits the growth of microorganisms and destroys it.…

Q: b) Shown below is a very short gene of an unknown bacteria genome (Figure 2). Transcription starts…

A: The mRNA is produced from the templates stand of DNA by the transcription process and polypeptide…

Q: Which of the following is not part of Koch’s Postulates? a. A specific microorganism must be…

A: The ability of the microorganisms to causing disease is demonstrated by Robert Koch. It is developed…

Q: Fill in the blanks to complete the Punnett Square using the following information. For blank #7,…

A: Given -  Cystic fibrosis is a hereditary illness which is inherited due to the recessive allele (c)…

Q: Q.3. Why are non-medicated methods not as effective as the copper ions releasing Intra-Uterine…

A: Because of the following reasons, non-medicated methods are less effective than copper ions…

Q: Explain the process of attenuation in the trp operon under the following conditi (i) No tryptophan…

A: Answer

Q: Which one of these mollusk groups can be classified as suspension feeders? O onphalopods O dvitons O…

A: Introduction  With over 100,000 species, phylum Mollusca is the second-largest animal phylum. Clams,…

Q: Shown below is a very short gene of an unknown bacteria genome (Figure 2). Transcription starts at…

A: Transcription proceeds until the main enzyme RNA polymerase encounters a termination sequence that…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: