Category: Zoology

Question:

How is modern policing changing to meet societys needs and future challenges?

1. Identify the correct matching

Structure

Function

A. Seminiferous tubules. Formation of fructose

B. Leydig cells. Testosterone secretion

C. Sertoli cells. Sperm motility

D. Epididymis. Spermatogenesis

Choose the correct option:

A. Only B

B. A and C

C. B and D

D. Only D

explain the physiological adpationation that allow marine mammals to endure heingt pressure and low oxygen during deep diving includes structural chnage and cite 1 peer reviewed source

it is the characterstic feature of phylum porifera (sponges ) for movement of water. Function ; 1) capturing/gathering of food .2) Respiration exchange . 3) Removal of NITROGENOUS WASTE.

Stapes (an ear bone) made up of hylaine cartilage

Enzymes play a very important role in animal digestion because they break down complex food into simple, absorbable substances.

Main Roles of Enzymes

1. Break down food (chemical digestion)
   • Food like carbohydrates, proteins, and fats are too large to absorb.
   • Enzymes convert them into smaller molecules.
2. Speed up digestion
   • Without enzymes, digestion would be extremely slow.
   • They act as biological catalysts (increase reaction rate).
3. Specific action
   • Each enzyme works on a specific type of food (lock-and-key mechanism).

The female reproductive system consisting of different type that is

1.a pair of ovary

2.a pair of fallopian tube

3.a single uterus

4.vagina

5.cervix

6.accesory sex gland

7.a pair of mammary gland

The female reproductive system consisting of different type that is

1.a pair of ovary

2.a pair of fallopian tube

3.a single uterus

4.vagina

5.cervix

6.accesory sex gland

7.a pair of mammary gland

Female reproductive system consisting of different parts that is

1 .a pair of ovary

2. a pair of fallopian tube

3. a single uterus

4.vigina

5.servix

6.accosery sex gland

RNA is the first genetic material . There is now enough evidence to suggest that essential life processes ( such as metabolism , translation , splicing , etc.) , evolved around RNA. RNA used to act as a genetic material as well as catalyst . RNA being a catalyst was reactive and hence unstable . DNA has evolved from RNA with a chemical modification that makes it more stable. DNA being double stranded and having complementary strand further resists change by evolving a process of repair.