In the early stages the embryos are progresses the embryos ✓each other. As time so the late embryos each other. In the middle stage the tortoise looks while the human looks most similar to the are most similar to the
Q: Oxygen-binding proteins myoglobin and hemoglobin require the prosthetic group ______.
A: Myoglobin and hemoglobin are protein molecules found in muscles and blood respectively. Myoglobin…
Q: Gram-negative bacteria are not killed by penicillin because they: do not have ribosomes.…
A: Bacteria can be gram-positive or gram-negative depending on how they are stained. Christian Gram…
Q: 2) Deforestation has a crucial impact on the amount of carbon dioxide in the atmosphere. Which…
A: Deforestation has a drastic effect on the amount of carbon dioxide in the atmosphere. Carbon dioxide…
Q: Explain why we need to control variables that are not being tested in an experiment?
A: Scientific methods are methods used in an area of research in which certain problems are observed ,…
Q: . RNA is almost never found in its primary structure and will form secondary structures b
A: RNA molecules are a type of nucleic acid found in cells that are involved in the coding, decoding,…
Q: Discuss the sympathetic and parasympathetic divisions of the autonomic nervous system. Why are these…
A: AUTONOMIC NERVOUS SYSTEM It is a part of peripheral nervous system which supplies internal organs,…
Q: What is the structue of dopamin, and suggest the binding interactions of dopamine with the receptor.…
A: The substantia nigra and the hypothalamus are two regions of the brain that release the chemical…
Q: Imagine that an mRNA molecule, with the following sequence of bases was translated by a ribosome: 5'…
A: Translation is the process of decoding genetic information encoded in messenger RNA (mRNA) to create…
Q: 5) Why is blood type inheritance an example of both codominance and complete dominance?
A: The blood is the connective tissue composed of plasma, formed elements such as erythrocytes,…
Q: Need. help with c and d please, thank you!
A: The graph depicts the influence of glycosylation on the CD4 receptor on HIV infectivity in human and…
Q: 1 When your body is breaking down organic biomolecular polymers in food into their component…
A: A biochemical reaction is a chemical reaction that takes place in living organisms. Chemical…
Q: Activity 3a -Measuring diffusion 1. In this experiment, potassium permanganate diffuses through the…
A: In this experiment, we explored how the concentration gradient affects the rate of diffusion.…
Q: Which of these statements describes an accurate model for how carbon dioxide and oxygen levels…
A: The ocean plays an important role in the global carbon cycle, exchanging carbon dioxide between the…
Q: You have discovered a new form of mouse myoglobin that has a p50 of 9 Torr. At approximately what…
A: The partial pressure of oxygen at which haemoglobin or myoglobin is half saturated with oxygen is…
Q: 5. Below is a segment of RNA, transcribed from a DNA sequence. Provide an example of each kind of…
A: Introduction The genome consists of DNA/RNA, consisting of either deoxyribonucleotide (In DNA) or…
Q: Bacteria - Protein Virus Eukaryote Sugar Lipid a. Streptococcus pneumonia is a (an) b. E. coli is a…
A: Microorganism: a living thing which can only be observed under a microscope. Protozoa, algae,…
Q: proteins
A: Protein synthesis: The proteins are made of a long chain of amino acids which are coded by DNA. The…
Q: Study the following questions: 1. Define the terms: transcription, promoter, enhancer, terminator.…
A: Transcription is the process of converting genetic information from a DNA molecule into an RNA…
Q: Give a possible scenario on how DNA isolation and analysis can be used.
A: DNA is extracted from a variety of sources through a process called deoxyribonucleic acid (DNA)…
Q: Description The Kemp's Ridley sea turtle (Lepidochelys kempii) is a critically endangered species.…
A: Endangered species are those that are at risk of extinction due to factors such as habitat loss,…
Q: Hydrogen peroxide (H₂O2) is naturally formed in living organisms; however, it is very harmful and is…
A: Although hydrogen peroxide (H2O2) is produced naturally in living things, catalase instantly breaks…
Q: a. To make 200mL of 150mM NaCl, weigh water to make the total volume mL. b. To make 1000mL of 0.06M…
A: 1.a) As we know that, 1000 mL = 1L, So, 125 mL = (125 / 1000)L or, 0.125 L. 1. b) 0.005 L = (0.005…
Q: Observe the diagrams in Figures 5 and 6 to answer the following questions. (a) Compare a red blood…
A: Cells are considered to be the basic structural and functional unit of life. The different parts of…
Q: A sheep breeder has a sheep that is large (L) with soft wool (S). The breeder conducts a testcross…
A: Introduction : A test cross is defined as the cross between an individual with an unknown dominant…
Q: Can someone please explain in detail how the Outer Membrane Proteins (OMP) system works?
A: The outer membrane of gram-negative bacteria contains a variety of proteins called outer membrane…
Q: State all the farming techniques or technologies farmers use to grow a banana. State the banana's…
A: Banana Cultivation : Banana is a perennial plant cultivated in tropical regions. It is cultivated…
Q: natural selection that leads to evolution of phenotypic differences A. Stabilizing selection…
A: Natural selection is the process by which species change over time as a result of environmental…
Q: What is anthropometry? • Give three examples of where anthropometry is used • Give an example of…
A: Human biology covers every element of the human body, such as evolution, genomics, ecosystem,…
Q: What are the typical portals of exit for pulmonary parasites? Explain.
A: Different types of microorganisms can cause infection in different parts of the respiratory tract.…
Q: Based on the attached image, identify the stage at which each cell is in and draw an animal cell…
A: Mitosis is a type of cell division that occurs in normal cells and is required for growth and…
Q: What can you personally contribute to safeguard the environment and care for non-human animals?
A: We can contribute to safeguarding the environment by reducing my energy consumption, recycling and…
Q: According to the endosymbiotic theory, which of the following is NOT true about the evolution of…
A: Because of specialized organelles, eukaryotic cells are more complicated than prokaryotic cells. All…
Q: Synovial joints are more freely moveable than fibrous or cartilaginous joints explain this…
A: An articulation, also known as a joint, is the place where a number of bones contact. According to…
Q: Which of the situations below will enhance microtubule growth? O addition of a drug that inhibits…
A: The third key part of the cytoskeleton, microtubules, are hard, hollow rods with a diameter of…
Q: How do arsenic and copper act to cause damage to biological systems and which of these metals is…
A: In our environment, there are several elements and minerals that are essential for life formation to…
Q: Long Bones: Pick your favorite long bone What is it? Draw it. Draw its markings. Label the bone's…
A: Given that we have to pick a long bone. We have to draw it with its markings and label them.
Q: Which of the following "weights" death, so that deaths of the very young count more than deaths of…
A: Public health and measuring the impact of premature death on a population. The concept of Years of…
Q: 16. Which of the following statements about fetal breathing is TRUE? It_ O is only exhibited by some…
A: Zygote is produced by the fusion of male gamete (sperm) and female gamete (egg). This process is…
Q: Which of the following is likely to happen when you remove the testes of an adult male rat? a)…
A: Introduction - Testosterone Testosterone is a steroid hormone from the androgen group. It is…
Q: Glucagon is secreted when: a. cortisol levels are high b. blood glucose levels are low c.…
A: Glucagon has the function of increasing blood glucose levels.
Q: 1. In the space provided below, draw your plates and indicate the number of different colonies and…
A: The visual qualities of a bacterial colony on an agar plate are known as colony morphology. An…
Q: O Type here to search #11 protein endoplasmic reticulum DNA vesicle RNA nucleus Golg ribosome…
A: Introduction:- Eukaryotic cells have well defined nucleus and they also consists of various membrane…
Q: List 4 features that Watson and Crick discovered concerning B-DNA
A: In a second paper in Nature, which was released on May 30, 1953, Watson and Crick expanded on their…
Q: A botanist is studying the phylogenetic relationships of plants using only their their morphological…
A: Phylogenetic analysis is a method for studying the evolutionary relationships between various…
Q: Describe what the dna looks like
A: DNA extraction is a laboratory technique used to isolate and purify deoxyribonucleic acid (DNA) from…
Q: Antifungal medication prescribed to someone with athlete's foot is targeting which component of the…
A: Scientists have created the Epidemiologic Triangle as a tool for analysing health issues. Your kids'…
Q: True or false: from the film "Making of the Fittest", dark mice are more likely to survive in the…
A: INTRODUCTION Dark mice are a breed of mouse commonly used in laboratory experiments. They are…
Q: The largest fluid component in the body is the: intracellular fluid extracellular fluid blood plasma…
A: Introduction : Aqueous solutions are where all biological chemical processes take place. Solutes…
Q: Part 3: How would you design an experiment to test the following observations? For the following…
A: Experiments are done to prove something, for that we need the group of individuals or other…
Q: Select two of the following diseases and discuss cause, predisposing factors and identify if it is…
A: 2) Cystic fibrosis A genetic (inherited) condition known as cystic fibrosis (CF) results in the…
A zygote is a diploid structure formed by the fusion and fertilization of gametes from both parents (male and female). This zygote when further divides and develops into an embryo. This embryo then undergoes a series of developmental stages to develop into a complete organism (younone). Embryology involves observing these various stages of development of an embryo inside the female parent.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- At which stage ( one two or threee ) is it most difficult to tell the embryos apart? explain Describe atleast one similarity in the structure of these embryos how do these similarities support the theory of evolution?. The upper forelimbs of humans and bats have fairly similarskeletal structures, whereas the corresponding bones inwhales have very different shapes and proportions. However,genetic data suggest that all three kinds of organisms divergedfrom a common ancestor at about the same time. Which ofthe following is the most likely explanation for these data?(A) Forelimb evolution was adaptive in people and bats, butnot in whales.(B) Natural selection in an aquatic environment resulted insignificant changes to whale forelimb anatomy.(C) Genes mutate faster in whales than in humans or bats.(D) Whales are not properly classified as mammals.Insects have three thoracic (trunk) segments. While researchershave found insect fossils with pairs of wings on all threesegments, modern insects have wings or related structureson only the second and third segment. It turns out thatin modern insects, Hox gene products act to inhibit wingformation on the first segment. The treehopper insect (above)is somewhat of an exception. In addition to having wingson its second segment, the treehopper’s first segment has anornate helmet that resembles a set of thorns, which a recentstudy has found to be a modified, fused pair of “wings.” Thethorn-like structure helps to camouflage the treehopper intree branches, thus reducing its risk of predation. Explain howchanges in gene regulation could have led to the evolution ofsuch a structure.
- 11. Vestigial structures are body parts that seemingly have no purpose or function. They once did, but somewhere along the way they lost their functions and are now basically useless. The existence of vestigial structures is on of the strongest evidences of evolution. Which of the following is NOT an example of vestigial structure? * a. Coccyx from the lower portion of the vertebra of human. b. Appendix is a narrow tube that extends from cecum. c. Hair like projections in the nose are called vibrissae. d. Body hair on the chest of man. 12. Rice is a staple food in the Philippines. There are various type of rice in the country, and Filipinos call them by local names such as laon, wagwag, sinandomeng, and angelica. These are some of the different varieties of the rice plant with the scientific name Oryza sativa. yet they all differ. Human intervention can change organism into different or…How can embryos help scientists understand evolution? Embryos go through various stages that suggest the animal’s evolutionary process. Embryos are frequently fossilized and illustrate change over time. Embryos provide evidence for which life forms existed at the same time. Embryos contain the code for all life on Earth.In 1798, a stuffed platypus specimen was delivered tothe British Museum. Reports that it laid eggs createdmuch confusion. To modern biologists, a platypus isclearly a mammal. It has fur and the females producemilk. Young animals have typical mammalian teeth thatare replaced by hardened pads of the “bill” as the animalmatures. Why do you think modern biologists can moreeasily accept that a mammal can have some reptileliketraits than scientists who were considering this animal inthe late 1700s?
- A genetic change that caused a certain Hox gene to be expressedalong the tip of a vertebrate limb bud instead of farther backhelped make possible the evolution of the tetrapod limb.This type of change is illustrative of(A) the influence of environment on development.(B) paedomorphosis.(C) a change in a developmental gene or in its regulation thataltered the spatial organization of body parts.(D) heterochronyThe diversity of modern vertebrates was shaped in partby mass extinctions. The most severe extinction eventwe know of occured at the border between the Permianand Triassic periods about 250 million years ago. Anestimated 96 percent of the marine species and 70 percentof land species disappeared in what is sometimes called“The Great Dying.” The cause of this mass extinctionremains under investigation. Suggested causes includean asteroid impact, extreme volcanic activity, or a sudden release of carbon dioxide from deposits on the sea floor. Which groups of vertebrates were present when this mass extinction event occurred? Which evolvedafterward?Scientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates have similar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence of evolution? A. The similarities suggest that chickens and humans are the direct descendants of modern day fish with tails and gill slits. B. The similarities suggest that vertebrates passthrough each of the adult stages of their evoluntionary history as they develop. C. The similarities suggest that vertebrates can undergo genetic changes during development that lead to the evolution of new species D. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slits
- What type of evolution do vertebrates have? (Parallel, Convergent, or Divergent)WRITE ABOUT A THEME: Organization You have seenmany examples of how form fits function at all levels of thebiological hierarchy. However, we can imagine forms thatwould function better than some forms actually found innature. For example, if the wings of a bird were not formedfrom its forelimbs, such a hypothetical bird could fly yet alsohold objects with its forelimbs. In a short essay (100–150words), use the concept of “evolution as tinkering” to explainwhy there are limits to the functionality of forms in nature.. As of this writing in 2016, no Neanderthal-derivedY chromosome nor mitochondrial DNA sequenceshas ever been found in a modern human. Proposetwo alternative explanations.