What is the best definition fo42jj i: a(lgehr a species?

  Biologists use the binomial naming system to name every o7m65)+vrbfm y ivja f4rganism on the planet. The binomial name for the platypus is Ornithorhynchus anatinus. Which statement(s) below are true fo6a i5mvfvj b)r+m4y f7r the binomial naming system and the platypus?
I.
The genus for the platypus is Ornithorhynchus.
II.
The binomial naming system is based on an international agreement between scientists.
III.
The name, Ornithorhynchus anatinus is unique to platypus species.

  Which statement is false about -dk1:jx mgvhkm5z: p r sexj2h+k9(q1the genome?

  The okapi looks like a small-sized giraffes7h 2s w,llng, and has stripes that resemble the zebra. It lives in the Ituri Forest in the Democratic Republic of the Congo. Okapis eat the leaves and buds of trees they can reach. They also gr g7,2nlwshls,aze on grass and ferns and eat fruit. Okapis tend to be solitary animals and the mother gives birth to one offspring which continues to be dependent on the mother’s milk for six months. When they are four to five years old, they are mature and can breed, but only with other okapis.

Which of the following statements is applicable to the okapi?
I. Okapi is a hybrid of a giraffe and a zebra
II. Okapi is an herbivore
III. Okapi is its own species

  The table shows factors that can result in speciation. 5(ja2iwd9/ qbw j+irj Which word is matched to the correct definition (j5rwaib/w j+2jd 9iq?

  The following table shows the diploid chromosome number of a range of species(x8s8p 3yg; h4rdzgy v lm/6ok.


Which of these statements is correct?

The table below shows the genome size and diploid chromosome numberskev4 vg/xk)8.m ).sn qddhv ,q of five diff.n .)k)dvvk 8/s ,d 4vqqxhemgerent species.


1.Evaluate the evidence from the table in relation to the statement that “organisms with a higher number of chromosomes do not always have more base pairs”.

2.Discuss the data as evidence for the notion that increased genome size means that the organism is more complex.

  Ammophila arenaria (Marram grass), pictured below, iv49xn l;(d2 zh uv/uzis plant species that is often found onui;2z 9x4hn(/vv du zl sand dunes.


1.1.Identify the genus to which Ammophila arenaria belongs.
   is the genus to which Marram grass belongs.

1.2.State the naming system used to name Ammophila arenaria.
The    is used to name organisms.

1.3.State the term used to describe the differences between organisms, which is used as the basis for the naming system in part (ii).
   refers to the differences between organisms, which is the basis for the binomial naming system.


1.4.Describe how the genome within a species could vary.

2.Compare and contrast the morphological and biological species concepts.

  What type of human cell does the fol) k9uu(ej xfh-lowing karyogram represent?

  Which of the following is true for s1c+4w(xg * ( is.aamh)2bbdf*nnoznthe Biological Species Concept?

  Which of the following statement(s) is/are true for the genou w4 cr2xy3qs/me?
I. The genome is all the genetic information of an organism.
II. Genomes within a species are identical in size.
III. Genomes within a species vary in base sequence.

  This table shows the ez56wtsdceq:l : 2i/x xstimated number of genes in E. coli bacteria, fruit flies, mice, humans, and riclciwxe: stzd2x: q/65e.

What can you conclude from the above information?

  Which of the following statement(s) is/are true for genome sequencin2 cludm);7 p:bf34fkkq* lrsc g?
I. The speed of genome sequencing due to technological developments is decreasing.
II. The cost of genome sequencing due to technological developments is decreasing.
III. Genome sequencing can be used for personalised medicine.

  Which of the following highlight(s) *np)wuk c3w 9f u ;m4lr.vriq1difficulties in applying the biological species concept?4*9.;n)lwimwfrr1 ku q 3ucv p
I. Budding in yeast
II. Runners in spider plants
III. Bacterial conjugation

  Which of the following j bnp5 2sdjl.1would provide evidence for two individuals belonging to different speds12. pj5ljnb cies?
I. Differences in genome base sequence
II. Differences in genome size
III. Differences in chromosome number

  The images below repa45q 2yy*yomytmz4c u9d6h( jresent haploid or diploid cells from different individuals. Based on their cells, which pairs could produce fertile2cz(yj*yta6 om49yq4 hmuyd 5 offspring if they interbreed?

  Which of the following could be used to identify and classify different speciev6n, + uhv5tqcs? 6qvcv 5u+tnh,
I. Dichotomous key
II. Karyograms
III. Binomial naming system

  Environmental DNA can be used to form whict-xo:r2sa3:si 4px fnh of the following?

  The image below shows three different forms of Ensatxj:v( me8 *bitina eschscholtzii species.

1.1.Construct a dichotomous key to identify the three forms of Ensatina eschscholtzii.

1.2.Identify the genus to which Ensatina eschscholtzii belongs.
They belong to the genus   .

1.3.All three forms of Ensatina eschscholtzii belong to the same species. State a property of their genome that they will share.
They will share the same number of   .

2.Explain why the biological species concept is more appropriate to identify the three forms of Ensatina eschscholtzii as the same species compared to the morphological species concept.

1.Compare and contrast the biological species concept and the morphological cor 3)jue4d6bfy iw2 q ;3l)wxkwp1s)kvncep k2p jywv1b3wex;63ur)skf l4 d)iqw)t.

2.Explain the difficulties with applying the biological species and morphological concept to all organisms.

3.Outline the shared and non-shared genomic traits within and between species.

1.Outline the binomial naming system 6wn/x eclv- c,z2-xn1oaq :ygand its importance.

2.Explain how a sample of cells taken from a foetus can be used to determine whether the foetus will be biologically male or biologically female at birth.

3.Outline the outcomes of the human genome project and their impacts on different fields of science.