3. How could you find the relative age of a sedimentary rock? 4. How might pieces of an igneous rock become a sedimentary rock?

Q: Establish the similarities and differences among the following organisms (page 218) STRUCTURAL STRUC...

A:   STRUCTURAL SIMILIRATIES WITH OTHER ORGANISMS Structural Uniquness Development Pattern DNA ...

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: What will be the importance of evolution to all living things?

A: Introduction:- Evolution is important because it explains how life evolved on Earth and how differen...

Q: Choose the manipulation most likely to disrupt the complex behaviors of earthworms. Destruction of ...

A: Some earthworms exhibit complex behaviors, such as burrowing and mate selection. These behaviors are...

Q: In the image, the tight junction proteins link cells together creating a barrier. These barrier prot...

A: Introduction: Four kinds of junctions are present in vertebrates which are; • Tight junctions • Adhe...

Q: In chickens Cis dominent to to c.C alters development to produce crooked shert legs end winge Creepe...

A: A dominant allele expresses itself by masking the expression of another gene (recessive). It is ment...

Q: 2. Examine the phylogeny below, which is the phylogeny for all extant species from a genus of birds,...

A: Phylogeny for extant species refers to the evolution history of a group of species that are living a...

Q: What group of prokaryotes use inorganic chemicals as energy source and fulfill their carbon needs by...

A: The inorganic compounds obtained by the bacteria from the surrounding environment helps the bacteria...

Q: Describe how each of the following physical factors affect microbial growth and aid in classificatio...

A: Microbial growth It is defined as an enhancement in the number of cells of microbes. there are seve...

Q: A eukaryotic gene is added to a mixture containing a restriction enzyme EcoRI and a bacterial plasmi...

A: The restriction endonuclease is the enzymes that help in the deduction of the DNA from a specific se...

Q: Transmission of traits in a population and determines the extent of the environmenta effect to the a...

A: The transmission of alleles in the population is depends on different factors. The expression of all...

Q: (i) The phenomenon by which living or dead plant cells absorb water by surface attraction. (ii) The ...

A: There are various major human organ systems that perform a different functions. Urinary system- incl...

Q: Which sigma factor is activated in the stationary phase? O A. RpoN O B. RpoE O C. RpoH O D. Rpos O E...

A:

Q: select the correct options: A) For organisms that diverged  >74 mya, ignore 3rd base positions with...

A: Phylogenetic  In biology, phylogenetic is the study evolutionary history and relationships between d...

Q: Which trophic level in an aquatic ecosystem would contain the greatest amount of usable energy?

A: Primary producers located 80 meters below sea level.

Q: 2. Cross a Blue Parakeet (BByy) With a Green Parakeet (BBYY). What is the genotype and phenotype of ...

A: Feather color in parakeets is controlled by two genes. Blue color (B) is dominant over the absence o...

Q: Describe what a core promoter in and the different types. Describe the motifs that could be found in...

A: Promoters are DNA sequence required to turn off gene or turn on gene.  Promoters are of three types-...

Q: Define each of the following terms with regard to their energy and carbon source: a. Photoautotroph...

A: Autotrophs or primary producers are organisms that prepare their own food using light,water,carbon d...

Q: Arcuate Artery Arcuate Vein Collecting Tubule 10 Distal Convoluted Tubule Afferent Vessel 11 Efferen...

A: * nephrons are functional unit of the kidney, the structures that produces urine  removing waste and...

Q: 1. The function of follicle stimulating hormone is to stimulate the development of Corpus luteum   ...

A: There are few important points :  The reproductive system consist of primary sex organs, secondary ...

Q: QUESTION 5 What event would most directly lead to the development of female external genitalia? Abse...

A: Answer - The event directly leads to the development of female external genitalia - The presence of...

Q: 2. Imagine that you have given blood, but a sample of your red blood cells is accidentally stored in...

A: Red blood cells mean RBCs are responsible for the red color of blood.RBC is placed in saline water b...

Q: What best describes the hind leg bones seen in the whale? Leg bone O Vestigial structures that had a...

A: INTRODUCTION Vestigial structure This is anatomical structures which has no longer purpose in the cu...

Q: Below is a list of molecules with different chemical characteristics. Knowing that all molecules wil...

A: Introduction :- Estrogens are a class of hormones that play a critical function in women's sexual an...

Q: Which of the following would be classified as non-coding DNA? (mark all applicable answers) The cyto...

A: Non coding DNA are sequences of DNA that do not code for proteins.

Q: The body produces a normal amount of testosterone. However, a particular cell you are studying has a...

A: Answer - B. The cell will make less mRNA in response to testosterone exposure. Explanation - The act...

Q: The offspring of better-adapted individuals are expected to make up a larger proportion of the next ...

A: natural selection

Q: Which of the following DNA sequence pairs are completely complementary?

A: The above given statement is about DNA complementary sequence.

Q: The action potential is split into 4 parts (A-D). For each part, 1. Describe what stimulated the cha...

A: An action potential is sudden and fast change of the resting membrane potential which propagates thr...

Q: Which archaean can found in waters and soil of the Arctic and Antarctic regions? Group of answer cho...

A: Archaens are the group of prokaryotic organisms which are adapted to live in extreme conditions such...

Q: Question 6. List the five steps in cell migration in order:

A: Cell migration is an essential mechanism in the growth and maintenance of multicellular organisms. T...

Q: Which of the following protozoan uses flagella for locomotion? Group of answer choices dinoflagellat...

A: *protozoans are  single celled eukaryotes thatare either free-living or parasitic feeds on organic m...

Q: than ventricular pressure while semilunar valves are open ventricular pressure is greater than atria...

A: 1.Ventricular pressure surpasses arterial pressure as the ventricles contract, the semilunar valves ...

Q: Which of the following accurately describes the structure of the DNA molecule? contains four bases a...

A: Introduction :- DNA is the molecular name for the molecule in all living things that conveys genetic...

Q: Which of the following statements BEST describes the process of DNA Replication? Group of answer cho...

A: To answer this question, each option is analysed as follows and final conclusion is drawn in step 2....

Q: Which cells are harvested from the early embryo for stem cell research? O enucleated cells umbilical...

A: 23   Answer is all blastocyst cells 

Q: Which of the organisms in each category (A, B, C, D, and E) are not of the same species? Discuss how...

A: Due to the extreme cold, many animals are unable to stay active and outside during the winter. Adapt...

Q: 토 25 2 Numbers per km? (Б) 70 50F 40 125 100 75 50 400 800 1200 Density (m³) w 6) ssewoig * (wo) y1b...

A:

Q: Describe the following stages of the cell cycle: interphase and mitosis

A: The longest phase of the cell cycle is interphase. Before entering into mitosis, the cell expands an...

Q: significant databthat we can obtain from grasping ideas from the connectuon of extinct organisms to ...

A: When a species becomes extinct, scientists refer to it as such. Extinction aids in the development o...

Q: 5. Using the hip joint reaction force example we did in class, if the moment arm for the cane is 30 ...

A: Our body's bones offer support for their mobility. A joint is a location where two or more bones com...

Q: Assume the carbon atoms in a molecule of glucose are radioactive. Referencing specific compounds, tr...

A: Glycolysis is the first step in the breakdown of glucose and it is the metabolic process that serves...

Q: Meiosis: Events Put the letter of each meiotic stage next to the correct event. Use each answer choi...

A: INTRODUCTION Meiosis This is a process by which a cell divides two times and produce four cells that...

Q: Chromosomes are visible under microscope during cell division because a. Thickening of chromatins b....

A: Correct option is a.Thickening of chromatins    The nucleoli vanish, and the chromatin fibres thicke...

Q: The proton-motive force is a.ATP synthase. b.a redox reaction. c.the proton concentration gradient. ...

A: * proton motive force (PMF) is the force that permits the movement of protons across membranes by do...

Q: Question 1 Which factors affect soil quality? A all of these B) history of the soil © presence of li...

A: Stomata:Stomata are cell structures found in the epidermis of tree leaves and needles that help plan...

Q: Homo erectus,

A:

Q: A cell has epinephrine receptors, yet is unable to respond to epinephrine signaling.  One possible r...

A: Epinephrine also known as Adrenaline is an hormone produced by adrenal gland. The signal pathway of ...

Q: We discussed four types of lipid movements in the membrane (rotational, diffusion, flexion, flip- fl...

A: Lipid movements in the membrane is of different types depending on the purpose.

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.