Biology Answers

Draw up an identification key ( dichotomous key) in brief outline for the differentiation of all the protozoa

(3)After the protostar gets hot enough nuclear fusion reactions fuse together helium and hydrogen

A. True

B. False

(4)A main sequence star is?

A. A star that shines steadily due to nuclear fusion

B. Several stars close together

C.A star with planets orbiting

D. A Nebula that skips a protostar and is instantly turns into a star.

(5)The bigger the star the longer it will live

A. True

B. False

(6)What happens when a star the size of our sun runs out of Hydrogen?

A. It uses helium as fuel

B. It uses carbon as fuel

C. It goes supernova instantly

D. It turns green

(7)Stars the size of our sun swell to a blue super giant after they run out of fuel.

A. True

B. False

Understand how enzyme kinetics are altered by temperature and pH.

Understand the importance of enzyme kinetics in relation to metabolic pathways.

Subject Course:- FISH TAXONOMY

Submitted Date:- Friday, Aug 6

Write short and precise answer for the following questions

1. What is character?

2. What is character state?

3. What is convergent evolution?

4. What is parallel evolution?

5. What is the difference between parallel and convergent evolution?

6. In cladistics classification conflicts that might arise in construction of cladogram are solved by rule of parsimony. What is Rule of parsimony?

7. What is the difference between homologous feature and analogous feature? 

8. According to cladistics classification, two organisms are closely related if they do have derived and shared characters. 

  A. What is derived and shared characters mean? 

  B. How is possible to identify either a character is derived or primitive?

The student sees the following and measures the length of the amoeba specimen as shown by the red line on the image below:

The student has recorded the number of ocular divisions measured as 35. Show how the true size of the specimen would be calculated in terms of micrometres.  

if 2 Mexicans have a baby and it was born in america. that would make that baby 100% mexican right and thus classifying them as mexican american and white?

Submitted date:- Monday, Aug 2

Course subject:- Invertbrate Biology

Question:- About Arthropoda phyla, About Jelly fish phyla and Sponge phyla of invertbrates discuss in detail based on the following criteria.

√ Reproduction

√ symmetry

√ Respiration and Circulation

√ Nervous system

√ Digestion and excretion

Outline the designs of a case-control study and a cohort study to examine the association between a high-fat diet and bowel cancer