chicks). Define what is meant by a “tradeoff” and discuss two tradeoffs that might limit clutch size (number of eggs laid in a nest) in these species. Explain your answer.
Q: During meiosis, does random assortment occur before or after crossing-over?
A: Meiosis is the cell division that includes meiosis I and meiosis II without any DNA replication…
Q: Select the best answer or answers from the choices given: The blood volume in an adult averages…
A: The cardiovascular system is a network of arteries and veins in which the heart pumps blood. The…
Q: s last name Hormones of endocrine glands Organ Parts Pituitary Pars distalis Acidophils Basophils…
A: We are allowed to do up to three subpart of a question please repost the undone question/s again.…
Q: Assume performing only one cross, which produced 274 flies, which consisted of 193 wild-type flies…
A: In fruit flies, red eye is dominant over the white eye. Eye colour is a sex-linked trait in fruit…
Q: Briefly describe how observing beak sizes in finches before and after a drought in the Galapagos…
A: Introduction Evolution is a process that involves change (in genotypes or phenotypes). This change…
Q: G5
A: The digestive system is made up of the gastrointestinal tract and accessory organs. Digestion is the…
Q: Review a human karyotype to identify the sex chromosomes and any abnormalities in chromosome number.
A: Introduction Cytology refers to the study of cells such as cell morphology, physiology, etc. As we…
Q: Do you think viruses are non-living or living organisms?
A: Microbes are the microscopic structure that cannot be seen as such through naked eyes. Microscope is…
Q: Wild type, rapid-cycling accessions of Arabidopsis, such as the Columbia (COL) lab line will flower…
A: Explanation: When both genotypes are cultivated from seed under circumstances of 16 hours of light…
Q: Why does penicillin purification use a centrifugal extractor?
A: A Centrifugal extractor is a piece of laboratory equipment that uses rotors to mix two immiscible…
Q: Which of the following is the highest (most inclusive) level in the taxonomic hierarchy? Question…
A: Introduction Hierarchical classification is a way of orderly ranking biological organisms depending…
Q: Q1: Which of the children in this Punnett square represents Zoe? What is her genotype? Q2: If Zoe’s…
A: Introduction Humans have 23 pairs of chromosomes; 22 pairs are called Autosomes while the 23rd pair…
Q: Directions: Suspend 28.0 grams in the 1000 mL distilled water. Heat to boiling to dissolve the…
A: An agar plate is a petri dish used to cultivate microorganisms that is made out of a growth media…
Q: Explain the characteristics and the mechanism of the secondary active transport then compare and…
A: Introduction All higher species, including plants, animals, and people, engage in transportation as…
Q: Why do we need to eat food containing carbohydrates, proteins, lipids, vitamins and minerals? -Why…
A: For doing normal physiological functions we need to consume carbohydrates, lipids, proteins,…
Q: Write TRUE or FALSE. If false, write the word/s that make(s) the statement incorrect. 1.The lac…
A: Introduction :- LacZ, LacY, and LacA are the three coding regions that make up the lac operon. The…
Q: Characterize the following items according to their category of ecosystem services
A: The various products and services that humans derive from the environment are referred to as…
Q: How do you calculate frequency of “turtles”that are aa(homozygous recessive ,green )if given the…
A: According to the Hardy-weinberg law propose that " if all other factors the main constant the…
Q: Evolutionary change occurs at the level of the individual ?true or false
A: Evolution is the process by which species adapt to changing environments over time.
Q: Adenohypophysis parenchyma is represented by trabeculae, which are formed by glandular cells. There…
A: The given question is to find the granular cell that can be stained by basic dyes and contain…
Q: (a) (b) (c) With reference to these data, compare the contribution of each ecosystem to global…
A: Natural capital- There are many different kinds of natural capital that offer humans products and…
Q: f a quantitative trait (egg weight in Chinook salmon) has an h2 of 0.20, and you selected for small…
A: In an effort to understand the genetic basis of variation in complex traits, the statistical…
Q: Enumerate the different kinds of blanks used in spectrophotometry
A: Introduction : Spectrophotometry is a method used to analyse molecules quantitatively based on how…
Q: Tree rings are caused by: Variation in the size of companion cells Variation in the size of sieve…
A: Explanation: Tree rings can be caused by a number of factors, including variations in the size…
Q: Q1: Which two children in this pedigree have cystic fibrosis? How do you know? Q2: Does either parent…
A: Cystic fibrosis is an autosomal recessive disorder.
Q: From the experiment, what are the approximate optimal temperatures of organisms A-D? Please report…
A: Incubation Maintenance of temperature and humidity for maximum possible growth of organisms.
Q: Which of the following best defines a scientific theory? A) An 'if, then' statement that can be…
A: Introduction : A scientific theory is a well-organized explanation that frequently includes a…
Q: How does exercise influence the number of Glut transporters on the sarcolemma?
A: Glucose transporters are a diverse group of membrane proteins that facilitate glucose transport…
Q: 1. Name the five types of white blood cells, and state a function for each type.
A: Introduction A component of our immune system that defends our body against infection is called…
Q: Little ATP is produced during initial breakdown of macromolecules that occurs in the gut.
A: ATP or the adenosine triphosphate is the chemical energy storage molecule that stores the chemical…
Q: Label a diagram of DNA replication, identifying the location of each step in the process.
A: Introduction DNA replication is crucial for the continuation of life as every new daughter cell…
Q: Which might you observe directly: the genotype or the phenotype?
A: Traits are the features of a living organism that are regulated by genes.
Q: Experimental plant's genotype: FRI/FRI FLC/FLC Environmental treatment: 12 hours light, 8 hours…
A: phytochrome Phytochrome is a pigment complex protein that exist in two form Pr & Pfr Pr…
Q: Distinguish among phagocytosis, pinocytosis, receptor-mediated endocytosis, and exocytosis.
A: Introduction: The process by which cells take in chemicals from their surrounding environment is…
Q: Name the stages of mitosis in order, and describe the behavior and structure of the chromosomes at…
A: Mitosis is the cell division in which the cell divides to form two genetically identical daughter…
Q: Experimental plant's genotype: fri/fri; FLC/FLC; cry2/cry2a Environmental treatment: 12 hours light…
A: Photoperiodism length of the light that is require to induce flowering is called photoperiodism. On…
Q: What will happen if cell inoculum density is more than 300
A: Introduction The population of microbes or cells injected into the fermentation medium, or any other…
Q: What are the advantages and disadvantages of using benzodiazepine hypnotics versus non -…
A: Introduction Benzodiazepines are a class of drugs that can treat a range of conditions. Familiar…
Q: Across 1. plays a major role in mitosis 3. which piece of technology was instrumental in the…
A: Introduction The fundamental units of all living things are cells. There are many billions of cells…
Q: D. TH17 17. Down regulation of ..............allow naïve T cells to enter lymph nodes? B. B7 C.…
A: T cells These are white blood cells that belong to the adaptive immune system. These cells play a…
Q: Name: Year and Section: Organelle Role Organelle Role EXERCISE NO. 2 Cell Anatomy and Function 2.…
A: Organelles are specialized structures present inside a cell that performs specific functions of the…
Q: Worksheet: What Darwin Never Knew Darwin was a naturalist, or a collector of plants and animals from…
A: Charles Darwin is commonly regarded as the father of evolution. During his young age, Darwin set out…
Q: With the same directions
A: Sterilization The process of getting germ free objects, surface, or fluid.
Q: Choose the best options, by dragging and dropping the colour coded text boxes below, that fill in…
A: Operon is transcription unit of prokaryotic genome with consist of many contiguous structural genes…
Q: What would be the effect of crossing-over between two sister chromatids?
A: A chromosome has one chromatid before DNA replication.
Q: Why is it important for a chromosome to be copied before mitosis?
A: Mitosis is a process of cell division in somatic cells. In this cell division, cells divide into two…
Q: objects that exhibit patterns in nature
A:
Q: 5. In class we described two post-translational modifications which could be used to control…
A: The enzymes are the proteins. They are coded by the gene sequences present in the DNA. These gene…
Q: Which of the following statements is/are FALSE? a.NADPH is formed in the stroma. b.The cyclic…
A: The science of chemical processes that occur inside or relate to live beings is known as…
Q: Lipids include komponent of cell membrane), and (such as fat and oil), (the major (containing 4…
A: Lipids are organic compounds that are derived from either fatty acids or contain fatty acids as…
- Some birds, such as grouse and geese, lay large eggs and have young that are mobile and able to feed themselves at hatching (precocial chicks). Define what is meant by a “tradeoff” and discuss two tradeoffs that might limit clutch size (number of eggs laid in a nest) in these species. Explain your answer.
Step by step
Solved in 2 steps
- Is the following case study an r-strategist or a K-strategist? American toads practice explosive reproduction. During the first warm days in spring, both males and females migrate from forests and converge on ponds. Reproduction is quick, taking only a few days. Females lay hundreds of eggs in jelly-filled sacks along the sides of the pond or stream. As soon as the eggs are laid, males and females abruptly leave the pond. Offspring are left to develop, hatch, and grow on their own, maturing in about three months.Consider the following graph showing clutch sizes and fledgling rates of blue tits. 1000 1.0 800 0.8 600 0.6 400 0.4 200 0.2 ㅇ 0.0 1 3 5 7 9 11 13 15 17 Clutch size The line shows the average number of fledglings surviving (on right y-axis) for a given clutch size (on the x-axis). The histogram bars show the frequency of nests observed (on the y-axis) per clutch size (on the x-axis). Why do most pairs lay fewer eggs (9), than the clutch size with the highest return of fledglings (12)? Frequency Young/clutchPolygyny is a common mating system in nature. Which one of the following scenarios is LEAST likely to result in a polygynous mating system? Male stalk-eyed flies form leks where receptive females come visit Male Neotropical giant damselfly defend water-filled tree holes, which are the oviposition sites for females. Suitable tree holes for oviposition are rare and females must mate with the resident male in exchange for access to the oviposition sites. Male Bengal tigers defend large territories that contain food sources. Female Bengal tigers visit male territories to mate. The density of the Bengal tiger is extremely low that male tigers rarely encounter more than one female in their lifetime. In the bumblebee-wolf Philanthus bicinctus, females are unreceptive until they finish constructing the long underground burrow as nest sites. Males search for locations containing a number of newly constructed burrows and attempt to control these sites against the intruders. Your cousin Peter…
- define interspecific competition. explain how insects reduce intraspecific competition between adults and offsrpings.King penguins are flightless aquatic birds found primarily in the Southern hemisphere. They live as a large colony and have highly social interactions. King penguins begin reproducing at six years of age and lay one or two eggs per reproductive cycle.Males and females share the incubation duties and raise the chicks together for about 15 months. When the young penguins get older, they form a large group guarded by only a few adult penguins, allowing the parents to forage for food without having to worry about their young. As a population, penguins could be classified as Select one: a. r-selected because only a few adult penguins care for the young penguins b. K-selected because they only lay one or two eggs per reproductive cycle c. K-selected because they live in a large colony, often sharing responsibility for caring for the young penguins d. r-selected because of the relatively long breeding cycleThe second assumption in formulating Lack's (1947) hypothesis is that clutch size affects only offspring survival. The data that are presented in the figure were obtained in an experiment conducted by Schluter and Gustafsson in 1993 to test this assumption. The researchers removed or added eggs to nests and monitored the offspring that hatched from the nests, recording subsequently the reproductive output for offspring females after they had matured. i. Females reared in nests from which eggs had been removed produced larger clutches. ii. Females reared in nests into which eggs had been added produced smaller clutches. iii. Observations described in statements i and ii are consistent with the second assumption. iv. Observations described in statements i and ii reveal a trade-off between offspring quantity and quality. Question 3 options: A) All statements convey accurate information. B) Statements i and ii convey…
- Is the following case study an r-strategists or a K-strategists? Andean condors reach sexual maturity at five to six years. Reproduction is slow; females lay only one or two eggs every other year. Offspring are cared for by both parents for at least one year. Andean condors are long-lived and can survive for seventy to seventy-five years.Recent published research has documented declines in flying insect populations. Describe two main threats to the survival of flying insects and one thing that we will we lose from our planet if flying insect species become extinct. Describe two ways in which we might prevent this catastrophe from worsening.All of the following scenarios are examples of barriers that distinguish separate species. Which is not a post-zygotic barrier? * Two species of ladybugs live in the same habitat. Although they mate at the same time of year, their genitals are physically incompatible. Two species of fish inhabit the same stream. They are capable of mating and producing healthy offspring. The offspring, however, are infertile. Two species of opossums inhabit the same forest. Although they are capable of mating, no offspring ever survive development. Two species of mice coexist in a forest habitat. They are capable of mating and producing offspring. The offspring, however, are frail and die young.
- All of the following scenarios are examples of barriers that distinguish separate species. Which is not a post-zygotic barrier? Two species of ladybugs live in the same habitat. Although they mate at the same time of year, their genitals are physically incompatible. Two species of fish inhabit the same stream. They are capable of mating and producing healthy offspring. The offspring, however, are infertile. and 2 Two species of opossums inhabit the same forest. Although they are capable of mating, no offspring ever survive development. hschool 3, Two species of mice coexist in a forest habitat. They are capable of mating and producing offspring. The offspring, however, are frail and die young. When Charles Darwin visited the Galapagos Islands, he observed the marine iguana. He later decided that the marine iguana evolved from the terrestrial iguana found on the mainland of South America. The marine iguana differs from the terrestrial iguana in several ways. The marine iguana has a flat…Dippers (Cinclus cinclus) are small birds that can be found along fast-flowing streams in Europe and Asia. They feed on insect larvae, especially those of caddis flies (Trichoptera), which they catch by sticking their heads under water and turning over stones. Describe the relationship between the abundance of caddis fly larvae and dippers?Why, is caddis fly larva abundance expressed as ‘relative abundance’? using the data in Table 2Many factors influence a species mode of reproduction. Use the descriptions of the following species to predict what system of hermaphroditism they probably display. 1. Individuals rarely disperse once they are sexually mature, and the largest males get the most matings. Females protect the eggs. [Select] 2. Resources are of uniform quality and evenly dispersed, so males are unable to monopolize them. Females are larger than males; Males protect the eggs. [Select] 3. Individuals are solitary, rarely meet others, and have no way of knowing the sex ratio in the population. There is no parental care. [Select] [Select] protogynous hermaphrodite continuous hermaphrodite protoandrous hermaphrodite
