1. For how long has there been life on earth? 2. For what percentage of time has life existed on earth (round to the nearest whole number) ? 3. For about how many years of geological time have humans existed on earth? 4. For about how many years of geological time have the dinosaurs existed on earth? 5. Did dinosaurs exist at the same time as humans? 6. How do scientist determine when an era begins and when it ends? 7. What is the purpose of making a geological timeline?

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

A: Answer :- A protist is any eukaryotic organism that is not an animal, plant, or fungus.  Mosses are…

Q: What are the transcription factors?

A: In transcription, DNA sequences are copied (transcribed) into RNA molecules. A gene's information is…

Q: What are Koch’s postulates and what is their importance?

A: Microbiology is the branch of science that deals with the study of microorganisms and the type of…

Q: Duchenne muscular dystrophy is a sex-linked recessive disorder characterized by a progressive loss…

A: Duchene muscular dystrophy is a X linked recessive trait. It is characterized by progressive loss of…

Q: on a gene in a microorganism that provides a characteristic you find interesting. However, I want it…

A: Microbes are one of the smartest living entities in this living world. As a part of evolution, they…

Q: Reproduction of giant cell?

A: Introduction: Multinucleated, inflammatory, and massive cells make up giant cells. These essentially…

Q: In the space provided write the letter of the term or phrase that best matches each cause and effect…

A: Introduction :- Energy is the ability to do tasks. It can exist in various forms, including…

Q: RFLP analysis involves the following, except ________ . a. more than one restriction sites b.gene…

A: Restriction Fragment Length Polymorphism An enzymatic process called RFLP is used to separate and…

Q: Fever can indicate that a. the pathogen remains on the skin D. the body is responding to an…

A: Normal temperature of the body is 98.6 degree fahrenheit. Fever occurs when this temperature rises.

Q: in the human genome project, scientists have identified the sequence of the base pairs of the human…

A: The Human Genome Project (HGP) was an international, cooperative research initiative with the aim of…

Q: Determine the parasitic and host partner in controlled parasitism in lichen.

A: Lichen is a result of the symbiotic relationship between algae and fungi. They grow slowly and have…

Q: Question 11 For the following statement, decide whether it is true or false and provide a…

A: Introduction Plants are autotrophs which means they can produce their own food, they do so by the…

Q: Briefly describe the components of the four major types of lipoproteins and explain the function of…

A: Introduction: The chemical processes that keep the body of a live organism sustainable are referred…

Q: What effect do each of the additives (salt, cream of tartar, egg yolk & aquafaba) have on egg white…

A: Egg is one of most widely used food product in all countries throughout the globe. Depending on the…

Q: e homeotic mutation Antennapedia causes mutant Drosophila to have legs in place of antennae and is a…

A: Dominant gain-of-function mutations affect just one copy of an allele and result in the production…

Q: Info for # 5-7. The blood Rh factor (+) is caused by the "R" allele, and lack of Rh factor (-) is…

A: Introduction : The ABO blood group system was proposed by Karl Landsteiner. The blood group A, B, AB…

Q: Should access and use of Genetic Data be regulated? Weigh both sides of the issue. Who will benefit…

A: Genetic Data is the data which explains the genetic characteristics or genetic composition of an…

Q: How many different cell types are found in the human body?

A: There are trillions of different types and sizes of cells in the human body. These incredibly small…

Q: PLEASE DO THIS WITH FBD. I WANT THIS TO BE TYPEWRITTEN OR IF HANDWRITTEN. PLEASE WRITE LEGIBLY OR…

A: There is a strong physiological response towards a decrease or increase in bofy temperature. Such…

Q: Briefly describe the role of neutrophils in acute respiratory distress syndrome (ARDS).

A: Neutrophils are the type of white blood cells which help in fighting off the infection and…

Q: (c) What are mitotic disrupters? Explain with an example. mitotic disrupters

A: INTRODUCTION These are also called mitotic inhibitors. These are drugs that can inhibit mitosis.

Q: Describe the type of mutations of Fog2  gene found in human patients and the phenotype of these…

A: Introduction: A mutation is a change in the DNA sequence of an organism. Mistakes in DNA replication…

Q: Explain how the following factors affect the blood velocity and volume flow rate as well as…

A: The blood vessels are tubular in structure that helps the blood to flow throughout the body. The…

Q: Which of the following is not a part of the endomembrane system, 1. Nuclear envelope 2. Endoplasmic…

A: The smallest unit of life is the cell. Cells make up all living things, whether they are…

Q: Select the three conditions necessary for natural selection. (select 3)     heritability…

A: Natural selection: Natural selection is the variation in individual survival and procreation brought…

Q: on the types of studies. Which sampling design you may recommend for the following experiments :…

A: Sampling methods play a very important role in investigation of various infection and disease either…

Q: he table below summarizes the features of 4 different flowers, A to D. Flower petal colour…

A: Pollination is the process of moving pollen grains from a flower's male anther to its female…

Q: lect one: Oa. In test tube B, the droplet moved to the left, indicating that oxygen was used by the…

A: Introduction Seed germination is a process in which the seedlings emerge from the immature seed…

Q: The breaking of the bond to the last phosphate group of ATP releases energy that can be used by a…

A: Energy is liberated when the ATP breaks into ADP and inorganic phosphate. ATP consists of 3…

Q: What clinical features distinguish bacterial pneumonia from atypical pneumonia?

A: A severe respiratory infection that damages the lungs is known as pneumonia. When a healthy person…

Q: Neurons have an electrical charge across their membranes called the resting potential when they are…

A: The nerve system and the hormonal system work together to regulate and coordinate the human body.…

Q: 1. Compare the total kcals, grams of fat, and percent kcal from fat for 1 cup of whole milk, reduced…

A: The milk is a edible liquid substance with a high nutritional value. The whole milk contains highest…

Q: What are the characteristic electrocardiographic features of the common cardiac dysrhythmias?

A: A disturbance in the pace of cardiac muscle contractions, or any deviation from the regular rhythm…

Q: Characteristics of northern blotting include the following, except ________. a.RNA synthesis…

A:

Q: 5. At the E1 threshold, HF and HF-P individuals achieve the same net energy intake. Which group…

A: Predator  The organism which hunt and kill ist prey in order to get food.

Q: Was Biological condition is needed for in-vitro environment?

A: In-vitro:- it means outside the living organisms. For example any biological experiment or reactions…

Q: The sequence of the template strand if a nontemplate strand has the sequence 5 ATGGGGCGC3

A: The coding strand determines the correct nucleotide sequence of mRNA. The template strand acts as a…

Q: The specimen below is what type of primate?   Strepsirhine    Platyrrhine    Catarrhine

A: Introduction Primates are the any mammals groups that includes monkeys, humans, lemurs, tarsiers,…

Q: Explain Events Leading from DNA to Protein Synthesis?

A: The process of protein synthesis takes place inside the cell in the manner following the central…

Q: Differentiate the two types of non–small cell lung cancer.

A: Small cell lung cancers (SCLC) and non-small cell lung cancers are the two main kinds of lung cancer…

Q: Explain differences between whole-genome sequencing (WGS)and whole-exome sequencing (WES), and…

A: The human genome is composed of 23 pairs of chromosomes in the nuclei of a cell and studied…

Q: Why is creatinine clearance a good estimate of glomerular filtration rate?

A: Creatinine is the chemical compound that is left behind after the energy producing cells in the…

Q: A student prepared two beakers with identical sprigs of a water plant. She used the same size…

A: Most of the plants present in the Earth are photoautotrophic in nature. They make their own food for…

Q: what amniocentesis is and why it would be performed

A: Introduction Amniotic fluid is a protective fluid that surrounds the developing embryo in the uterus…

Q: HUMAN DEVELOPMENT What organs were produced at the start of development? Towards the end of…

A: Human development  allows the human beings to form specialised structures like organs during their…

Q: Are drugs that target cell wall synthesis effective for all bacteria?

A: Introduction Drugs are chemical substances that are used to prevent the growth of pathogens.…

Q: This is a list of molecular changes that could happen during DNA replication, transcription, mRNA…

A: The mutation alters allele frequencies by constantly introducing new alleles, which can be…

Q: The figure below is a portion of a Northern blot which shows the change in abundance of the HS-X…

A: Introduction  In molecular biology, a Southern blot is a technique for identifying a specific DNA…

Q: Fish produce a hormone called isotocin, a hormone that is similar to oxytocin in mammals. Both…

A: Isotocin is a hormone present in fish. It is made up of nine amino acids linked by peptide bonds…

Q: Imagine that you wanted to know if speciation rate in plant groups is linked to whether the plants…

A: Answer- Correct option is (A) Pollination is transfer of pollengrains from the anther of one flower…

Paleontology

A branch of science concerning the scientific study of life from ancient times is known as paleontology. The scientists working on paleontology are known as paleontologists. Paleontologists collect the fossils of organisms from ancient times to classify them. The paleontologists also study the environment from ancient times to study the interactions between different organisms.