Question

QUESTION 46

1. Which one of the following is a human blood type?

   		ABO-
   		Rh+
   		E+
   		B-
   		Rh

1 points   

QUESTION 47

1. Which one of the following statements correctly describes activities of muscles?

   		All muscles shorten when they contract.
   		All muscles are attached to bones.
   		All muscles produce movement.
   		All muscles are under conscious control.
   		All muscles are synergistic.

1 points   

QUESTION 48

1. Which one of the following tissues can respond to the environment by generating electrical signals?

   		dermis
   		nervous
   		connective
   		muscle
   		epithelial

1 points   

QUESTION 49

1. Which type of microscope has the best resolution?

   		Leeuwenhoek's microscope
   		Hooke's microscope
   		An electron microscope
   		A modern light microscope

1 points   

QUESTION 50

1. Which type of tissue is able to contract?

   		dense connective
   		epithelial
   		nervous
   		muscle
   		loose connective

Answer 1

QUESTION 46

Which of following is a human blood type?

B-

Explanation:

For human there are four main type of blood group those are A, B, AB, O. But each blood group can either positive or negative depends on having Rh factor.

In question there is option for B- blood group that is present in human.

QUESTION 47

Which one of the following statements correctly describes activities of muscle?

All muscle produce movement.

Explanation:

The main function of muscle is to produce motion. So this statements correctly describes activities of muscle.

QUESTION 48

Which of the following tissue can respond to the environment by generating electrical signals?

Nervous

Explanation:

Nervous tissue transmit information from one region of the body to another as an electrical impulse. So the right answer is nervous.

QUESTION 49

Which type of microscope has the best resolution?

An electron microscope

Explanation:

Electron microscope has best resolution power because the wavelength of an electron can be up to 100000 time shorter than visible light photons, thus it can reveal the structure of smaller object.

QUESTION 50

Which type of tissue is able to contract?

Muscle

Explanation:

Muscle tissue have ability to contract, these are soft tissue and make up most of the tissue in muscle.

So the right answer is muscle.