Which type of epithelial tissue consists of a single layer of flattened cells and is involved in diffusion?

Squamous epithelium

Fill in the blank: The ______ is the main tissue that provides structural support and protection for softer tissues and organs in the body.

Bone

True or False: Connective tissues are primarily responsible for covering body surfaces.

False. Connective tissues primarily link and support other tissues and organs.

What type of muscle tissue is found only in the heart and has intercalated discs?

Cardiac muscle tissue

Riddle: I am a tissue that helps in movement and is striated in appearance, but I cannot be controlled voluntarily. What am I?

Smooth muscle tissue

Which type of connective tissue has a semi-fluid ground substance and serves as a support framework for epithelium?

Loose connective tissue

Fill in the blank: The ______ gland produces hormones that regulate metabolism and calcium levels in frogs.

Thyroid

True or False: All epithelial tissues are avascular, meaning they have a rich supply of blood vessels.

False. Epithelial tissues are avascular; they lack blood vessels.

What is the main characteristic of ciliated epithelium?

It has cilia on its free surface that help move particles or mucus.

Which type of epithelial tissue consists of multiple layers and has a protective function?

Compound epithelium

True or False: Blood in frogs contains non-nucleated red blood cells (RBCs).

False. Frog blood contains nucleated red blood cells (RBCs).

What is the primary function of the Malpighian tubules in cockroaches?

To absorb nitrogenous waste and convert it to uric acid.

What type of connective tissue is characterized by densely packed collagen fibers and is found in tendons and ligaments?

Dense connective tissue

Fill in the blank: The ______ epithelium is specialized for secretion and can be either unicellular or multicellular.

Glandular

True or False: The frog's skin is dry and covered with scales.

False. Frog's skin is smooth, slippery, and always moist due to mucus.

What are the two main types of glandular epithelium based on secretion methods?

Exocrine and endocrine glands

Riddle: I am a system of tubes that allows frogs to breathe underwater, where gas exchange happens through my surface. What am I?

Skin (cutaneous respiration)

What role do fibroblasts play in connective tissues?

Fibroblasts produce and secrete fibers like collagen and elastin.

Fill in the blank: The ______ of a frog is short because frogs are carnivores, leading to a reduced intestine length.

Alimentary canal

True or False: The cockroach has a closed circulatory system.

False. Cockroaches have an open circulatory system.

What is the primary function of the tympanum in frogs?

It serves as an organ for hearing.

Riddle: I am a process involving a nymph stage, where frogs undergo a transformation from tadpole to adult. What am I?

Metamorphosis

What is the main function of the pancreas in the digestive system of frogs?

To produce pancreatic juice for digestion.

Fill in the blank: The ______ of the frog's heart is covered by a membrane called pericardium.

Ventricle

True or False: The forelimbs of frogs are larger and more muscular than their hind limbs.

False. The hind limbs are larger and more muscular than the forelimbs.

What type of epithelial tissue is specifically adapted for absorption and secretion in the intestines?

Columnar epithelium

What are the three types of cell junctions found in epithelial tissues?

Tight junctions, adhering junctions, and gap junctions.

Riddle: I am the structure in frogs that aids in the production of bile, helping digest fats. What am I?

Liver

Fill in the blanks: The connective tissues are classified into three types: (i) Loose connective tissue, (ii) ______, (iii) Specialised connective tissue.

Dense connective tissue

The organ responsible for grinding food in cockroaches is:
a) Crop
b) Stomach
c) Gizzard
d) Esophagus

c) Gizzard

The circulatory fluid in cockroaches is called:
a) Plasma
b) Hemolymph
c) Blood
d) Lymph

b) Hemolymph

Development in cockroaches is:
a) Holometabolous
b) Ametabolous
c) Paurometabolous
d) Hemimetabolous

c) Paurometabolous

Reproductive structures surrounding male gonopore are called ________.

Phallomeres

Storage site for sperm in female cockroach is called ________.

Spermatheca

Number of cranial nerves in a frog:
a) 8
b) 10
c) 12
d) 14

b) 10

What type of fertilization do frogs exhibit?
a) Internal
b) Asexual
c) External
d) Parthenogenesis

c) External

Excretory opening in frogs is called ______.

Cloaca