Other Biology Answers

Bacteriorhodopsin pumps hydrogen ions against ....

Insect belong to the phylum?

an example of phylum coelenterata is the

19 Earthworms belong to the phylum
nematoda
platyhelminthes
protozoan
annelida
20 Snails belong to the phylum
annelida
nematoda
mollusca
platyhelminthes

13 Diagnostic features of angiosperms include all of the following except
The seeds are naked
Seeds are covered by the flower or a fruit
No archegonium present
Germination is long
14 The sixth kingdom classsification of living things shows that they are
all plants
all animals
plants and animals
lower animals
15 The Porifera are also known as ____________________
saprophytes
sponges
spikes
reptiles
16 The phylum Cnidaria include all of the following except
jellyfish
anemones
corals
snakes
17 Flukes and Tapeworms belong to the phylum
nematoda
platyhelminthes
reptilia
pisces
18 Roundworms belong to the phylum
nematoda
platyhelminthes
reptilia
protozoa

7 The plant kingdom includes the Bryophytes, Pteridophytes, the Gymnosperms and the Angiosperms. They all possess chlorophyll and are therefore -----
heterotrophic
autotrophic
chemotrophic
parasitic
8 The first division in the plant kingdom are the ---------
bacterias
bryophytes
pteridophytes
fungi
9 Riccia and Marchantia are
fungi
protozoans
bryophytes
pteridophytes
10 Which of the following is not a diagnostic feature of the kingdom pteridophyta?
The sporophyte is the dominant and conspicuous generation
The gametophyte generation of Pteridophytes is small and found in wet places
The sporophyte is differentiated into true roots, stems and leaves
dry scaly leaves
11 There are --------- classes of the Pteridophytes
1
3
4
5
12 The gymonosperms produces naked -----------
seeds
fruits
cones
flowers``

1 All of these are groups of slime moulds except
Plasmodial slime moulds
Cellular slime moulds
The slime nets
Slime trap
2 Which of the following is not an adaptive feature of the slime mould?
Formation of cysts in adverse conditions.
Green pigment Chlorophyll for photosynthesis’
Some have holdfast for anchorage
Possession of phloem tissues
3 Which of the following divisions of living organism posses chlorophyl?
protozoans
protists
fungi
pteridophytes
4 The collection of hyphae is called -------
mycology
mythology
mitochonria
mycelium
5 Which of the following is not a diagnostic feature of fungi?
The fungi are eukaryotes
They are multi-cellular organisms except yeast which is unicellular
All are heterotrophs and never contain chloroplasts as such do not photosynthesise
They have true roots
6 Which of the following is not a phyla of the fungi kingdom?
Ascomycota
Deuteromycota
Zygomycota
Chilopoda

how do reef will react to lionfish inasion if there are no sea urchins

Why don't onion root tips show mitotic stages?

It was back in the winter that we did the Onion root tip experiment in college. We were able to see wonderful stages but now in this monsoon-autumn transition the root tips hardly show any mitotic stage. Why is it so?
P.S I live in India in the plateau region of West Bengal.

15 About ----------- percentage of all known species of animals are insect
20
30
40
70
16 The only invertebrate that can fly is
Bats
Squirrel
Vulture
Insects
17 The body of an insect is divided into the head, thorax and
metathorax
cephalopoda
mesothorax
abdomen
18 Insects carries out gaseous exchange by means of
thorax
metathorax
abdomen
spiracles
19 Which of these may not be an adaptive feature of the arthropods?
possession of exoskeleton
webbed feet
jointed limbs
pecialised digestive system
20 The phylum echinodermata include all of the following except
sea crab
sea urchins
sea-lilies
star fish