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Name and define the Type of nutrition with examples?

Explain the meaning of sexually transmitted diseases (STDs). Give two examples of STDs each, caused due to (i) bacterial infection and (ii) viral infection. State in brief how the spread of such diseases may be prevented.

Fill in the following blanks with suitable words :
(a) Pollen grains contain ___ gametes of a plant.
(b) Ovules contain ___ gametes of a plant.
(c) The ovary of a flower becomes ___ after fertilisation.
(d) The ovule becomes a ___ after fertilisation.
(e) Flowering plants reproduce by ___ method of reproduction.
(f) The female organ of reproduction in the flower is the ___
(g) The male organ of reproduction in the flower is the ___
(h) The name of the structure in the flower in which the male gamete is formed is ___
(i) The ___ at the base of the carpel contains egg cells.
(j) The term used to refer to the transfer of pollen from the stamen of one flower to the carpel of another flower of the same species is ___
(k) The cells involved in sexual reproduction are called ___
(l) Fusion of gametes gives rise to a single cell called ___
(m) The process of fusion of gametes is called ___
(n) A multicellular animal starts its life from a ___ through sexual reproduction.
(o) The union of a sperm nucleus with an egg nucleus is known as ___ and results in a ___
(p) The menstrual cycle is controlled by ___

Mid brain is _________________.

A : Humans are a part of Anthropoidea.

R : Humans are part of Cercopithecoidea.

Which of the following is a unique characteristic of a stem cell?

A plant is provided with ideal conditions for photosynthesis and is supplied with ${}^{14}C{O}_2$. When the products of the process are analyzed carefully, what would be the nature of the products?

Which of the following observation is correct when red rose petals are placed in the jar of sulphur dioxide?

Which type of photosynthetic reaction will involve the conversion of ADP to ATP?

What are the functions of the collecting duct?

Collection of urine

Transportation of urine to the pelvis

Reabsorption of water

Secretion of NaCl

Any tiny critter unlucky enough to spring one of the carnivorous plant's traps will find itself imprisoned
in the blink of an eys. But how can a plant, which has no nerves or muscles - move so quickly?
It turns out that Venus flytrap is power plant, capable of generating electrical signals. Which part of the plant constitutes the trap?

Consider that brown eye trait is dominant over blue eyes. What would the result of the cross between two blue eyed individuals be?

(a) Draw a neat diagram of a flower showing its various parts. In this diagram mark stem, receptacle, sepals, petals, stamen and carpel.
(b) What name is given to (i) all the petals of a flower, and (ii) all the sepals of a flower?
(c) What are (i) stamen, and (ii) carpel, in a flower?
(d) What is the other name of carpel of a flower?
(e) What is the name of the yellow powdery substance present in the anther of a flower?

The gap between two communicating neurons is termed as _____.

Collective name for the membranes around the brain.

Enter 1 word only.

Most of the water on the Earth's surface is found in:

The size of the ozone hole is maximum over ___.

Question 65
Match the terms in Column (A) with those in Column (B).

$\begin{array}{cc}Column\left(A\right)& Column\left(B\right)\\ \left(a\right)Trypsin& \left(i\right)Pancreas\\ \left(b\right)Amylase& \left(ii\right)Liver\\ \left(c\right)Bile& \left(iii\right)Gastricglands\\ \left(d\right)Pepsin& \left(iv\right)Saliva\end{array}$

Match the greenhouse gases listed in column - II with their respective sources (activities from which they get released) in column - I.

$\begin{array}{cccc}& \text{Column-I Activities}& & \text{Column-II Green house gases}\\ A& \text{Combustion of fossil fuel}& p& \text{Carbon dioxide}\\ B& \text{Swamp and rice fields}& q& \text{Ozone}\\ C& \text{Refrigeration}& r& \text{Nitrous oxide}\\ D& \text{Burning of biomass}& s& \text{Methane}\\ & & t& \text{CFC\_s}\end{array}$

Which of the following can be called as misuse of genetic engineering?

Match the following time spans with their actual phases in a eukaryotic cell cycle.

Column I Column II

i). 10 hr a. M Phase

ii). 9 hr b. $G_2$ Phase

iii). 4 hr c. S Phase

iv). 1 hr d. $G_1$ Phase

The following five sentences come from a paragraph. The first and the last sentences are given. Choose the order in which the three sentences (PQR) should appear to complete the paragraph.

S1 One major problem that the world faces today is the rapid growth of population.

S2 _______________________________________________________________

S3 _______________________________________________________________

S4 _______________________________________________________________

S5 This will cause serious problems of hunger and overcrowding!

P – This is often referred to as population explosion.

Q – It is not so much the actual population, but its increase that is alarming.

R – Experts predict that by 2020 there will be about 10 billion people in the world.

Choose from the options given below:

The enzyme ligase is also known as:

Global warming results in

Angiotensinogen is converted to Angiotensin by________

The term Central Nervous System refers to _____.

A , B and C are three living organisms. The organism A is a unicellular fungus which can live without air. It is used in the commercial production of an organic compound P from molasses. The organism B is a unicellular animal which lives in water and feeds and moves by using pseudopodia. It breathes through an organelle Q. The organism C is a tiny animal which acts as a carrier of the malarial parasite. It breathes and respires through a kind of tiny holes R and air-tubes S in its body.
(a) What are organisms (i) A (ii) B, and (iii) C?
(b) Name (i) P (ii) Q (iii)R, and (iv) S.
(c) Which organism/organisms undergo aerobic respiration?
(d) Which organism/organisms undergo anaerobic respiration?

The first human like creatures are called as?

The technique of sterilizing a male by blocking the vas deferens is known as:

What is major function of male reproductive system?

Which of the following substances in e-waste are leaked to soil and groundwater which is hazardous to humans?

The specific function of light energy in the process of photosynthesis is to___________.

Haemoglobin is

Which of the following glands is found adjacent to the kidney?

Question 1
What is the importance of DNA copying in reproduction?

Two of the following organisms have a holozoic mode of nutrition. These organisms are:
(a) Paramecium and Plasmodium
(b) Plasmodium and Parakeet
(c) Parakeet and Paramecium
(d) Paramecium and Parasite

The table shows the rates of water uptake and transpiration of a plant during a morning.

At what time does the plant show signs of wilting?

Which chamber of heart pumps blood to all parts of the body ?__

Why is excretion necessary? Name the common excretory substances in our body.

Which amongst the given images correctly depicts a drip irrigation system?

Name the cells shown in the figure. Mention their shape and function. [3 MARKS]

The process of transmission of parental characters to progeny is called ___.