Pls help me. Class 6. Don't spam.
Answers
Answer:
Here is your 2, 9 and 10 answer, dear
2). Examples of complete flower are
Hibiscus and rose
9). Adaptation : the process of change by which
an organism or species becomes better suited to its environment.
Habitat : the natural home or environment of an animal, plant, or other organism
Acclimatisation : The process of changes that can occur in an organism over a short period of time that helps it to adjust to its surroundings is known as acclimatisation.
Biotic components : Biotic describes a living
component of an ecosystem for example
organisms, such as plants and animals
Aboitic components : In ecology and biology,
abiotic components are non-living chemical and physical factors in the environment which affect
ecosystems.
10).i). Leaves are reduced into spines to prevent loss of water from the surface of leaves. Stomata are less in number and sunken.
ii). Both leaves and stems have a thick waxy coating to prevent loss of water in hot weather.
iii). The stem becomes green to take up the function of leaves.
Hope it's helpful for you
2. Write examples of complete flower
complete flowers include hibiscus, roses, pea plants and tulips.
3. Draw a labelled diagram to explain the different parts of a complete flower.
The parts present in the flower are Stalk, Sepals, Petals, Stamen and Pistil. The description of each part is as follows: Stalk: It is the base on which the flower grows. ... Pistil: It is known as Gynoecium or female reproductive part of the flower and is composed of stigma, style and Ovary.
- this question answer is a photo of a flower you can see.
4. List the different types of joints found in the human body. Mention where are they located
Fibrous joints
are joints in which bones are joined by dense connective tissue that is rich in collagen fibers. These joints are also called sutures. The joints between bones of the cranium are fibrous joints.
Cartilaginous joints
are joints in which bones are joined by cartilage. The joints between most of the vertebrae in the spine are cartilaginous joints.
Synovial joints
are characterized by a fluid-filled space, called a synovial cavity, between the bones of the joints. You can see a drawing of a typical synovial joint in the figure below.
5. Explain the structure of the rib cage.
The rib cage consists of sternum, xiphoid process, the costal cartilages and twelve thoracic vertebrae. The ribs are curved long bones and form the part of the rib cage. The ribs are joined to the last of the thoracic vertebrae. ... The last five ribs are known as false ribs connected by the costal cartilages.
6. Write differences between pectoral and pelvic girdle.
The pelvic girdle is formed of paired hip bones each made up of ilium, ischium and pubis. The pectoral girdle is part of the appendicular skeleton which are for the upper limbs. In human beings, the pectoral girdle consists of the scapula and the clavicle. The pelvic girdle is located in the lower part of the trunk.
7. Draw a mind map to show the different parts of the Human Skeletal System.
this question answer is a photo. you can see.
8. Explain the movement and locomotion of the following animals
a) Earthworm
b) Snail
Answer -:
- a) Earthworm
The body of an earthworm is made up of many rings joined end to end. ... During movement, the earthworm first extends the front part of the body, keeping the rear portion fixed to the ground. Then it fixes the front end and releases the rear end. It then shortens the body and pulls the rear end forward.
- b) Snail
Land snails move by gliding along on their muscular foot, which is lubricated with mucus and covered with epithelial cilia. This motion is powered by succeeding waves of muscular contractions that move down the ventral of the foot. The foot is the organ of locomotion in land gastropods. ... The normal progression of a snail is by muscular action, with a series of contraction waves proceeding from the posterior to the anterior end of the gliding portion of the foot.
9. Define-
a) Adaptation
b) Habitat
c) Acclimatisation
d) Biotic components
e) Abiotic components.
Answer -:
- Adaptation
In biology, adaptation has three related meanings. Firstly, it is the dynamic evolutionary process that fits organisms to their environment, enhancing their evolutionary fitness. Secondly, it is a state reached by the population during that process.
- Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche.
- Acclimatisation
Acclimatization or acclimatisation is the process in which an individual organism adjusts to a change in its environment, allowing it to maintain performance across a range of environmental conditions. Acclimatization occurs in a short period of time, and within the organism's lifetime.
- Biotic components
Biotic components, or biotic factors, can be described as any living component that affects another organism or shapes the ecosystem. This includes both animals that consume other organisms within their ecosystem, and the organism that is being consumed.
- Abiotic components.
In biology and ecology, abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems. Abiotic factors and the phenomena associated with them underpin biology as a whole.
10. Mention some adaptations shown by plants which grows in desert habitats.
The leaves in desert plants are either absent, very small or present in the form of spines or thorns. This helps in reducing the loss of water from the leaves through transpiration. Since desert plants lose very little water through transpiration, they can survive on stored water for a long time.
