Identify and explain the type of natural selection (directional, disruptive, stabilizing) that accounts for the evolution of the hollow bones of birds, which make flight possible.

Q: Most of oxygen in the Earth's atmosphere came from photosynthesis True O False

A: Introduction: Photosynthesis is the process of preparing food in the presence of sunlight and chloro...

Q: For the chromatogram below, what is the sequence of the template DNA from base 115 to 125? CTGTGTGAA...

A: According to the question, we have to answer the question that which is for the chromatograph below,...

Q: If a fish is able to breathe outside of water but does not reproduce, that trait?

A: Introduction: Evolution is the change in the inherited characteristics of biological populations ove...

Q: Define the concept of restriction-enzyme digestion ?

A: Enzymes are biocatalysts. These speed up biochemical reactions and are proteinaceous in nature. Thes...

Q: How do the nucleotides of MRNA chains encode information for the formation of the amino acids sequen...

A: There are only four types of nitrogenous bases that can be used to construct RNA nucleotides: adenin...

Q: There were ape smugglers wreaking havoc on populations of orangutans, chimpanzees, and bonobos. What...

A: Endangered ape species include orangutans, chimpanzees and bonobos Chimpanzees and bonobos are close...

Q: Do algae reproduce sexually or asexually?

A: Some algae reproduce by sexual reproduction, whereas others reproduce through asexual reproduction.

Q: What sociological theories explain social change?

A: Society is always in flux, which means that it is changing and adapting to different forms over time...

Q: Explain how a gene in a multicellular organism may produce differentproducts in different types of c...

A: Genes code for the amino acid sequence of polypeptides.  

Q: Contractile bundles occur in nonmuscle cells; these structures are less organized than the sarcomere...

A: Skeletal muscles have thin and thick filaments.

Q: isolated in pure culture?

A: Helminths cannot be isolated in pure culture 

Q: Photosynthesis- Light-Dependent and Light Independent Reactions- know what happens in each part of t...

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

Q: In which stage of sleep do sleep spindles occur? a. N1 c. N3 b. N2 d. R

A: Humans have sleep and awaken in 24 hours cycle which is called a circadian cycle.

Q: According to data from genome sequences, cytoplasmic dynein is absent in some plants (e.g.,Arabidops...

A: Cytoplasmic dynein is the main microtubule minus end-coordinated motor in the cytoplasm of most euka...

Q: A major difference between exotoxins and endotoxins is that endotoxins are _____. View Available Hin...

A: Toxins are the poisonous responses that are produced by the bacteria so that they can access the hos...

Q: Which of the following are related to the health policy trilemma? (Please choose all that may apply)...

A: Health policy trilemma. 

Q: Why is the signaling pathway that activates NF-κB considered to be relatively irreversible compared ...

A: The mitogen-activated protein (MAP) kinase cascade, which contains three serine-threonine kinases, i...

Q: The molecular pore of the DMVS is hypothesized to be

A: This question is based on double membrane vesicles.

Q: How is it that the insects form legs only in their three thoracic segments and have no legs on their...

A: Arthropods are animals with jointed appendages that account for more than 90% of all animals in the ...

Q: 2. A hiker got lost while hiking in the Mohave desert in Arizona. When she was found by a search gro...

A: Distilled water is pure water with no solutes. present in it. Water is absorbed by the cells through...

Q: What structural features does the trp operon share with the lac operon?

A: Genes are collections of nucleotides that code for a specific protein. For protein synthesis to occu...

Q: 1. List 3 factors within the problem description that have contributed to the development of dehydra...

A: Note- since we are allowed to do one question at a time, so I can answer 1st question only. for othe...

Q: Among prokaryotes, only the cyanobacteria ________ .a. live near hydrothermal ventsb. produce oxygen...

A: Cyanobacteria is a phylum of photosynthetic bacteria found in aquatic and moist soil environments. O...

Q: The fur colour of Labrador dogs is determined by three alleles: black (FB), chocolate (F), and yello...

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

Q: Animal Diversity Second mouth Asymmetrical animals Symmetrical animals Spiny skin Radial symmetry Bi...

A:

Q: Explain how domain shuffling could occur by recombination (crossing over) of different genes during ...

A: Domain shuffling is a process where gene segments coding functional domains are shuffled between dif...

Q: Species I is diploid (2n=8) with chromosomes AABBCCDD. Related species II is diploid (2n=8) with chr...

A: Chromosome mutation A chromosomal mutation is a DNA mutation that affects a lengthy stretch of the g...

Q: . . Which is better indicator for Salmonella, coliforms or E. coli? Explain/defend your answer. .

A: Salmonella contamination is brought about by a group of salmonella bacteria called Salmonella. The m...

Q: III. Write TRUE if the statement is correct and FALSE if otherwise. 7. A female parent possessing an...

A: 7. X linked dominant mutations will be expressed even when it is heterozygous. If the female parent ...

Q: II 4 III 3 Refer to the pedigree above. What is the genotype of person Il-1 if this pedigree for hem...

A: It is a sex-linked recessive trait.It is a disorder in which blood does not clot due to lack of clot...

Q: the effect of bpa on  STAT1 and STAT3 phosphorylation in RAW264.7 cells

A: Marcrophages are not only the part of our innate immune system, but also they actively participate i...

Q: The genotypic ratio of the cross between Aabb x aaBb is O 3.1 O 11 0 9:3:3.1 O 1:1:1:1

A: The genotypic cross-ratio along with the Punnett square is discussed in details in the step 2.

Q: What are the possible gametes contributed by the parental's in P1 cross?. ProgenyClass. And how do I...

A: The results can be explained by the alleles of each different gene assorting into gametes independen...

Q: One feature that virtually all plasmid vectors have incommon is the polylinker (also called a multip...

A: A restriction site is that 6 – 8 DNA sequence that is recognized and bounded by a particular restric...

Q: How might genes, such as those responsible for drug resistance, be transferred between bacterial spe...

A: According to the question, we have to explain the process by which the genes, responsible for drug r...

Q: Using the skills you learnt in the DNA Analysis tutorial, correctly identify the gene and species of...

A: In various fields of biology, DNA sequencing is performed. So to identify the organism from huge pop...

Q: You are hired by a beer company to optimize their assembly line. They have vials containing a specia...

A: Fermentation is the process by which certain substance like sugar are broken down into simpler from ...

Q: Conifers, cycads, ginkgo, and gnetophytes are collectively called (a) club mosses (b) gymnosperms (c...

A: Introduction Conifers are a category of plants and shrubs that thrive in cooler climates around the ...

Q: main features of industrial food processing, and how does it differ from artisanal food processing?

A: 1.Using preservation techniques that limit microbial or biochemical changes, to lengthen the period ...

Q: Discuss the evolutionary adaptations of flowering plants.

A: Introduction:- The process through which organisms adapt to their surroundings in order to enhance t...

Q: A simple pistil consists of a single (a) calyx (b) carpel (c) ovule (d) filament (e) petal

A: Introduction :- The pistil is the female portion of a flower that bears seeds. It has a swelling bas...

Q: Which of the following interpretations for the missing hereditary are reasonable? 1. The reported hi...

A: The "missing heritability" problem is the fact that single genetic variations cannot account for muc...

Q: Escherichia coli is a facultative anaerobe that ferments sugars. In the absence of oxygen, it does n...

A: Aerobic respiration  is a phenomenon in which the energy is harvested to fulfil energy requirements....

Q: Dr. Trapper gave Caleb a hug and he felt very hot. A quick check with the thermometer demonstrated h...

A: Answer 

Q: . An ebony strain of flies was discovered to be sensitive to carbon dioxide. Crossing a female sensi...

A: Introduction A reciprocal cross is a breeding experiment used in genetics to determine the impact of...

Q: Which of the following is the most effective way to reduce the number of nosocomial infections? View...

A: An infection is the invasion of body tissues by disease-causing agents, their multiplication. The ho...

Q: Discuss the structure of a typical eukaryotic gene and the DNA elements involved in regulating that ...

A: A typical eukaryotic gene is present on a chromosome on a particular locus.    

Q: A monosomic G. hirsutum is crossed with G. thurberi and produces offspring, some with 39 chromosomes...

A: Normal G. hirsutum is tetraploid. It has 13 tetraploid (4x) chromosomes and thereby have a total of ...

Q: What characters distinguish fungi from other organisms?

A: Introduction The kingdom Fungi, which includes yeasts, rusts, smuts, mildews, moulds, and mushrooms,...

Q: How is filament polarity detectable?

A: Microfilaments in the cell form structures associated with the plasma membrane.

Evolutionary adaptations

Evolutionary adaptation is the process through which organisms adapt or adjust to their surroundings to increase the chances of survival, mating, and reproduction. An organism's behavior, physiology, and structure are adjusted or changed to make it more suited to its environment.