Biologyacademic

A guppy farmer is trying to decide how to spend her money to produce guppies faster. She rears the guppy population by adding a few adults to a large pool and then letting the population growth through many generations with plenty of food ( no resource limits ) . Which of the following would you advise her to do ?

Which of the following is not a feature of natural selection?

5. An automobile manufacturer sold 30,000 new cars, one to each of 30,000 customers, in a certain year. The manufacturer was interested in investigating the proportion of the new cars that experienced a mechanical problem within the first 5,000 miles driven. (a) A list of the names and addresses of all customers who bought the new cars is available. Describe a sampling plan that could be used to obtain a simple random sample of 1,000 customers from the list. Each customer from a simple random sample of 1,000 customers who bought one of the new cars was asked whether they experienced any mechanical problems within the first 5,000 miles driven. Forty customers from the sample reported a problem. Of the 40 customers who reported a problem, 13 customers, or $32.5 \%$, reported a problem specifically with the power door locks. (b) Explain why 0.325 should not be used to estimate the population proportion of the 30,000 new cars sold that experienced a problem with the power door locks within the first 5,000 miles driven. (c) Based on the results of the sample, give a point estimate of the number of new cars sold that experienced a problem with the power door locks within the first 5,000 miles driven.

"Which list of characteristics best describes the Archaea domain? A. prokaryotes, kingdom Eubacteria, no nuclear membrane B. prokaryotes, kingdom Archaebacteria, no nuclear membrane C. eukaryotes, kingdoms Protista, Fungi, Animalia, and Plantae, nuclear membrane D. prokaryotes, kingdom Archaebacteria, nuclear membrane"

# Find the slope of the lines graphed below

"Phytoplankton act as a carbon store when they A. Breathe in CO2 B. Die and become a food source for other creatures C. Die and move down into the deepest part of the ocean"

"Which best describes evolutionary theory? A. It is not supported by observation or experimentation. B. It has been disproved several times since it was first proposed. C. It is based on the idea that all life is related. D. It states that organisms have become less complex over time."

"What are the five features of a habitat? A. Food, water, arrangement, space, and population B. Food, water, vegetation, terrain, and space C. Food, water, vegetation, terrain, and population D. Food, water, cover, space, and arrangement"

**Question: Correctly label the following anatomical features of the spinal cord.**

# Question 4 of 15: Who can decontrol CUI? (Select the best answer) OCA, if in a Security Classification Guide Designated office for decontrolling All of the above

What is the difference between a codon and an anticodon?

The Alternating Series Test has three conditions, all of which must be met, in order to guarantee that a series is convergent. Those three conditions are: Condition (1): The series is an alternating series (it has the form $\sum_{n=1}^{\infty}(-1)^{n+1} b_{n}$ where $b_{n}>0$ ); Condition (2): The absolute value of each term is less than or equal to that of the preceding term (the statement $b_{n+1} \leq b_{n}$ is true for all $n$ ); and Condition (3): The terms shrink toward zero for large $n$, or $\lim _{n \rightarrow \infty} b_{n}=0$. Can the Alternating Series Test be applied to the series $\sum_{n=1}^{\infty}(-1)^{n+1} \frac{5 n}{4 n-2}$ to show that it converges? Answer this question by picking the most appropriate answer choice from the list below. (3) No. Condition (1) is not satisfied (expanding the general term does not yield an alternating series), so this test (by itself) is inconclusive and a different convergence test must be used. (4) Yes. All three conditions are met, so the given series converges and no additional testing is required. (5) No. Condition (2) is not satisfied (the absolute value of each term is not shrinking relative to its predecessor), so this test (by itself) is inconclusive and a different convergence test must be used. (6) No. Condition (3) is not satisfied (the terms do not shrink toward zero for large $\boldsymbol{\tau}$ ), so this test (by itself) is inconclusive and a different convergence test must be used.

C Complete the emails by writing one word in each gap. There may be several possible answers. Email 1 Please (1) $\qquad$ attached my report. (3) $\qquad$ it's not too late. (3) $\qquad$ me know if you have any questions. Email 2 I'm (1) $\qquad$ various forms for you to complete. Please pay special (2) $\qquad$ to the expenses claim form. I need them back (3) $\qquad$ 16 February at the latest. Email 3 (1) $\qquad$ agreed, I'm sending the pre-meeting notes. Let me know if there's anything (2) $\qquad$ we can do from this (3) $\qquad$ before we meet. Email 4 Sorry, I (1) $\qquad$ to send the attachment! (2) $\qquad$ it is. Please get (3) $\qquad$ to me if you can't open it. Email 5 I (1) $\qquad$ be grateful if you (2) $\qquad$ complete the attached form and return it asap. Please (3) $\qquad$ that I have changed my email address.

The functions $f$ and $g$ are defined as follows. $$ f(x)=2 x^{3}+6 \quad g(x)=-3 x+2 $$ Find $f(-2)$ and $g(3)$. Simplify your answers as much as possible.

Describe the four steps of mitosis: Prophase: Metaphase: Anaphase: Telophase:

"Bacterial contamination can spread quickly because, if the conditions are right, bacteria can multiply in: A. 10-20 minutes B. 10-20 hours C. 10-20 seconds D. 10-20 hours"

"Which of the following equations represents photosynthesis? A. 6H2​O + 6O2​ → C6​H12​O6​ + 6CO2​ B. C6​H12​O6​ + 6O2​ → 6CO2​ + 6H2​O C. 6CO2​ + 6H2​O → C6​H12​O6​ + 6O2​ D. 6CO2​ + 6O2​ → C6​H12​O6​ + 6H2​O E. C6​H12​O6​ + 6CO2​ → 6O2​ + 6H2​O"

Which of the following best describes natural selection? A. When a small sample of a population leaves and establishes a new population. B. When traits are determined by multiple genes and environmental factors and cannot be predicted using Punnett squares. C. The process by which organisms are separated by chance events, such as natural disasters, causing the frequency of the population to change. D. The process by which organisms that are better adapted to the environment tend to survive and produce more offspring.

What is the difference between food chains and food webs? A. Food webs show a single path of energy in an ecosystem, and food chains show all the overlapping food chains in that ecosystem. B. Food chains show a single path of energy in an ecosystem, and food webs show all the overlapping food chains in that ecosystem. C. Food webs show the path of energy in an ecosystem, and food chains show the path of nutrients in that ecosystem. D. Food chains show the path of energy in an ecosystem, and food webs show the path of nutrients in that ecosystem.

What are two reasons that cells divide rather than continue to grow indefinitely?

Facilitated transport requires energy in order for the molecules to move. a. True b. False

What two inputs are needed for cellular respiration?

What two scientists are credited with establishing the structure of DNA?

Which of the following differentiates between the principle independent assortment and theprinciple of segregation? a)The principle of independent assortment is accounted for by events in prophase I while the principle of segregation is accounted for by events in metaphase I. b)The principle of segregation explains the inheritance of recessive traits while the principle of independent assortment explains the inheritance of dominant traits. c)The law of segregation requires describing two or more genes relative to each otherwhile the law of independent assortment requires describing two alleles relative to eachother. d)The principle of independent assortment requires describing two or more genes relative to each other while the law of segregation requires describing two alleles relative to each other.

What is the difference between C3 plants and C4 plants?

What is the best definition for the word "photosynthetic"? A. Beautiful to behold B. Able to convert sunlight into energy C. Easy to see D. Helpful for protecting roots

If the authorized sources do not provide sufficient guidance, you should FIRST: Rely on your memory Ask the OCA Ask your Security Manager or Facility Security Officer (FSO) Ask your Quality Assurance Manager

Which of these genotypes are heterozygous? A. TT B. Tt C. tt D. None of these

List the three components of traditional cell theory. All living organisms are composed of one or more cells. The cell is the basic unit of structure and organization in organisms. Cells arise from pre-existing cells.

What are the seven taxonomic levels of classification for the following? Use a table to show each taxon. A. Tiger B. Horse C. Bean D. Yeast E. Mule F. Euglena

What are the seven characteristics of life? (Choose 7 answer choices.) Select 7 correct answers: A. Heredity B. Homeostasis C. Growth and Development D. Respiration E. Adaptation F. Metabolism G. Evolution H. Cellular Organization I. Reproduction J. Response to Environment

Motor proteins provide for molecular transport of materials in cells by interacting with what types of cellular structures?

What is the difference between Batesian and Müllerian mimicry?

Compare the wandering albatross and the raven.

What does it mean if a molecule is moved against the concentration gradient?

During sexual reproduction, each parent contributes one set of chromosomes. Members of a pair of chromosomes (one from each parent) are called homologous chromosomes.

Which term describes a type of organism whose cells contain a nucleus and specialized membrane-bound organelles? # 0 mitochondria 0 eukaryote 0 prokaryote 0 bacteria

What section of DNA codes for a protein and/or trait?

What is an organism’s niche? the physical environment of the organism the role that an organism plays in the environment the traits that increase an organism's survival the competitors and predators of the organism

What is the difference between longitudinal growth and appositional growth?