Life span refers to Group of answer choices none of the above the typical lifetime of people in the absence of any external limitations the average lifetime of an individual member of a species how long a given person lives

Q: Which event may take place before metaphase?

A: A cell cycle is the sequence of events that occur in a cell as it grows and divides.

Q: Instructions: 1. For each of the provided food webs indicate how many toxins are in each link in the…

A: 2) Food Chain 1: Diatoms = 0.025 toxins Clam = 0.025 toxins * 10,000 diatoms = 250 toxins Sea otter…

Q: Two species live in the same general area, but use different habitats or are active at different…

A: The collection of different individuals of same species that are located in a particular area at a…

Q: You are given a pure protein sample to characterize and provided the following information: Its…

A: Introduction  One or more long chains of amino acid residues make up the massive biomolecules and…

Q: Beta oxidation is ________. a. the breakdown of sugars b. the assembly of sugars c. the breakdown of…

A: The oxidation of carbohydrates, fatty acids, and amino acids is known by different names according…

Q: Wouldn't the presence of myomeres in vertebrates be neither symplesiomorphic no synapomorphic when…

A: Synapomorphy is an evolutionary relationship in which a trait is shared by 2 or more taxa and their…

Q: Write the steps for Krebs Cycle Pathway

A: The Krebs cycle, also known as the TCA cycle (tricarboxylic acid cycle) or the Citric acid cycle, is…

Q: Disturbance is important in determining the set of species found in an area. Naturally, broadleaf…

A: Forest  The area where tree are dominated on land.

Q: The two power point slides in this activity illustrate gas exchange in the lungs (external…

A: Cellular respiration is the process through which a cell converts glucose and oxygen into adenosine…

Q: Suppose two independently assorting genes are involved in the pathway that determines fruit color in…

A: Given ,  Dominant epistasis: Phenotypic frequencies 12:3:1 W allele codes for a dominant white…

Q: Discuss the contribution of GW Carver and the importance of nitrogen fixation*

A: Plants are significant life forms that belong to the taxonomic kingdom Plantae and are also…

Q: Holdridge reasoned that the biome found in an area is determined by only two environmental factors.…

A: Introduction :- A biome is a biogeographical unit made up of a biological community that has…

Q: Aquatic Biomes Which aquatic biome has the important function of filtering nutrients and chemical…

A: Introduction :- The area that is above water at low tide and below water at high tide is referred to…

Q: label the parts of the specimen

A: Plant cells are the eukaryotic cells present in green plants. Plants are photosynthetic eukaryotes…

Q: 2) Why does the plant breeder in the following scenario committed an experimental error? "A plant…

A: Introduction  The science of plant breeding is modifying a plant's properties to generate desired…

Q: list living to non-living interactions with benefits of them to the living

A: An ecosystem is a community of living and nonliving things that interact with one another.

Q: For each of the events in Mitosis, give the stage in which it occurs: a. The nuclear membrane breaks…

A: Mitosis   A kind of cell division in which daughter cell is just same as the parent cell or in other…

Q: 3. In general, the surface of a tree has a harder "feel" than does the surface of a dog. What cell…

A: The cytoplasm is the cell's fundamental environment. The nucleus, like the town hall, is the most…

Q: What neurobiological alterations have been associated with attention-deficit/hyperactivity disorder…

A: Numerous bodily systems, including the metabolic, mitochondrial, immune, gastrointestinal, and…

Q: * (a) Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings, What is the…

A: Given diagram shown is of Chromosome. It is the thread like arrangement of DNA molecule which is…

Q: Derived characteristics are A. The series of apparent adaptations that are never actually used B.…

A: Introduction  A trait or character is a characteristic of a living thing. It belongs to the…

Q: What is the difference between the metaphase chromosome and telophase chromosome? Metaphase…

A: A cell cycle is a series of events that takes place in a cell as it grows and divides.

Q: Why is it important to limit the quantity of cells used to prepare a smear?  Mark all that apply:…

A: Smear represents a sample of cells which are going to be studied under a microscope for their…

Q: why are the steps in gram staining carefully standardized?

A: Gram staining  The technique of differentiation of two large group of bacteria that is gram positive…

Q: Application Questions: 1) Two taster parents produce both homozygous taster and non-taster children.…

A: Since tasting is dominant trait, we have,  Genotype of tasters - TT or Tt Genotype of non-tasters -…

Q: Which of the following are examples of post- translational modification (PTM)? (select two answers)…

A: Introduction :- The chemical alterations that take place after a protein is generated are referred…

Q: If nuclear DNA replicates during the S (synthesis) phase of the cell cycle, when does mitochondrial…

A: Answer : the mitochondrial DNA replicates in the :  C)  s phase        Explaination : the…

Q: Which of the following statements about cellular membranes is true? Transmembrane proteins are…

A: Introduction  All cells have a cell membrane, also known as a plasma membrane, which separates the…

Q: It refers to the diploid sexual spores of Saprolegnia. * Your answer Specialized nitrogen fixing…

A: Saprolegnia is a genus of several fungal pathogens. Cyanobacteria is a large group of prokaryotic…

Q: MECHANISM for the plasma polymerization of oxalic acid.

A: Polymerization : During polymerization,smaller molecules called monomers or building blocks are…

Q: A. Detecting Dextrin in Starch 1. Iodine Test for Starch Describe any change that took place when…

A: The iodine test is the biochemical test used to detect the presence of starch. The starch reacting…

Q: What exactly is the zona pellucida? Does it make up the plasma membrane, vitelline layer, AND jelly…

A: Introduction  The extracellular matrix, also known as the ECM, is a three-dimensional network of…

Q: Why are some of the specimens called specialized or modified stems? Give reasons

A: The usual function of stem is to support the axis of the plant and provide a conduit for transport…

Q: Discuss what happens to the action potential shape when the neuronal environment has sodium removed.…

A: Introduction  When the membrane potential of a particular cell site rapidly increases and decreases,…

Q: Select all that apply to a direct simple stain:    1. the dye is acidic or negatively charged and…

A: Gram staining is used to examine the shape of the bacterial cells; if they are contaminated.…

Q: A diploid cell has ________ the number of chromosomes as a haploid cell.a. one-fourthb. one-halfc.…

A: The gametes such as ovum and sperm are haploid while other somatic cells are of diploid nature.…

Q: Write brief summaries (no longer than three lines) on each of the following topics:…

A: What:- Manchester specific markers are digital frequency modulation  in which data and clock signals…

Q: Terrestrial Biomes Which is the largest terrestrial biome? Chapparal O Desert O Northern Coniferous…

A: * A biome is a large area which is  characterized by  its vegetation and climate and  soil and…

Q: Describe the ff 1. Trypanosoma

A: Introduction :  Protozoa are heterotrophic, eukaryotic, unicellular microorganisms. The cell wall is…

Q: The informational biopolymers DNA, RNA and protein all share some features, but differ in others.…

A: The flow of information takes place from DNA to proteins. This process is called central dogma and…

Q: Fill in the blanks w/ synapomorphic, symplesiomorphic, or neither: The presence of brain…

A: Synapomorphic This characteristic is shared by certain taxa but not by others because the former…

Q: 5. Species are involved in a diverse range of interactions. Provide a specific example of each of…

A: The following are the five types of interactions between different species: Predation and…

Q: A strong theory becomes a law. True O False

A: A well considered explanation for observations of the natural world that has been developed…

Q: Need answer in short asap

A: Drosophila melanogaster, or the fruit fly, is a model organism used in genetics and developmental…

Q: any living to living interactions with their benefit to each other?

A: Interaction   In ecology,  interaction means how one organism reacts in the presence of another.

Q: What is the main function of the Epithelial cells?

A: Epithelial tissue Cells are closely packed together ( whith relatively little intercellular matrix…

Q: strepsirrhine has a A. Snout, downward-facing nostrils, and longer forelimbs than hind limbs B. Wet…

A: Strepsirrhine  It is the suborder of primate group animals which includes lemurs.

Q: 1. Indicate the name for each indicated stage in the life cycle using the drop down menu. 2.…

A: Each point below describes each checkbox Gametophyte (n) (checkbox before gametangia). Gamete(n)…

Q: The cholesterol synthesized by cells uses which component of the glycolytic pathway as a starting…

A: Glycolysis occurs in the cytoplasm of the cell. The glycolysis converts the glucose into two…

Q: Explain the processes for photosystems 1 and 2 in photosynthesis.

A: When compared to bacteria, the photosynthetic apparatuses of modern cyanobacteria, algae, and…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.