Science Q2 - Life Cycles

Question 1

Refers to the series of changes an organism undergoes from birth to adulthood.

Answer 1

life cycle

Question 2

Many plants start off as a ______.

Answer 2

seed

Question 3

Every seed holds a miniature plant called the______.

Answer 3

embryo

Question 4

The hard part that covers the seed is called the _______; it protects the embryo.

Answer 4

seed coat.

Question 5

The embryo gets nourishment from the stored food, called ______, in the seed.

Answer 5

cotyledon.

Question 6

The seed sprouts and produces a tiny plant called a _______.

Answer 6

seedling

Question 7

The process wherein the young plant, then starts to come out is called _________.

Answer 7

germination

Question 8

True or False: It is important that the seed is planted in the right place at the right time for it to germinate.

Answer 8

True

Question 9

_____ are reproductive parts of a plant.

Answer 9

Flowers

Question 10

________ is the process of producing new plants.

Answer 10

Reproduction

Question 11

Give some examples of fleshy fruits?

Answer 11

avocado, watermelons and oranges.

Question 12

Some animals are hatched from eggs. They are called _____

Answer 12

oviparous animals.

Question 13

Give some examples of oviparous animals.

Answer 13

birds, snakes, frogs, and insects.

Question 14

_____ are animals that are covered with feathers and have wings.

Answer 14

Birds

Question 15

A baby bird that is hatched is called a _______.

Answer 15

hatchling.

Question 16

When the bird stays on the nest and is completely dependent on its parent, it is called a ________.

Answer 16

nestling.

Question 17

True or False: Most nestlings are naked and blind. They are still being fed by their parents.

Answer 17

True

Question 18

After a few weeks, the feathers of the nestlings start to develop and the babies leave the nest. They are now called _______.

Answer 18

fledglings

Question 19

Changes in appearance that occur between hatching and the adult stage are called ________.

Answer 19

metamorphosis

Question 20

Insects exhibit two types of metamorphosis-

Answer 20

incomplete
complete

Question 21

Incomplete metamorphosis happens in _______ and _______.

Answer 21

grasshoppers
crikets

Question 22

The egg of a grasshoppers hatches into a _______, which is a young grasshopper.

Answer 22

nymph

Question 23

Is a type of metamorphosis wherein a series of changes that an insect undergoes from being an egg to an adult.

Answer 23

Incomplete metamorphosis

Question 24

Is a type of metamorphosis wherein a series of changes involving an egg, a larva, a pupa, and a mature insect.

Answer 24

Complete metamorphosis

Question 25

Complete metamorphosis happens in ______ and _____.

Answer 25

butterflies
moths

Question 26

An adult female butterfly lays eggs under the leaves of a plant. After 10 to 15 days, the egg hatches into a small larva called _______.

Answer 26

caterpillar

Question 27

The caterpillar feeds on the leaves, stems, and roots of a plant with its pair of jaws. It moves using 1.____ pairs of true legs, and 2.____ pairs of prolegs.

Answer 27

1.three
2. five

Question 28

After several days, the caterpillar forms a ______ around its body.

Answer 28

pupa

Question 29

The pupa is also called ______.

Answer 29

cocoon or chrysalis

Question 30

An adult butterfly usually lasts for ____ weeks.

Answer 30

2

Question 31

The real legs of a caterpillar will become the legs of the adult and the ______will disappear during metamorphosis.

Answer 31

prolegs

Question 32

A ______ is made up of thousands of single egg, each with a black embryo surrounded by a jellylike coating.

Answer 32

spawn

Question 33

Frog lay eggs in ______ or _____,

Answer 33

cluster
clumps

Question 34

Toads lay eggs in ________.

Answer 34

long strands

Question 35

Young frog is called ______

Answer 35

tadpole.

Question 36

Other animals like dogs, cats, rabbits, cows, and horses give birth to their young. They are called _________.

Answer 36

viviparous animals.

Question 37

The young of the horse is called a _____.

Answer 37

pony

Question 38

True or False: Horses are greatly affected by environmental changes.

Answer 38

True

Question 39

True or False: Water is valuable resource for horses.

Answer 39

True

Question 40

True or False: You were an infant from birth to two years of age.

Answer 40

True

Question 41

_____ extends from two years to puberty. This is also a period of rapid growth.

Answer 41

Childhood.

Question 42

________starts from puberty to adulthood.

Answer 42

Adolescence

Question 43

______ occurs when the reproductive system of the female discharges blood and tissue. It marks the beginning of puberty and continues until the late middle age.

Answer 43

menstrual cycle

Question 44

is the period from ages 20 to 40. Certain changes associated with aging begin.

Answer 44

early adulthood

Question 45

is the period from ages 40 to 65. Aging speeds up during this time and is characterized by further vision problems, hearing loss, and the end of reproductive capability for women, known as menopause.

Answer 45

middle adulthood

Question 46

is the period from 65 onward. Physical changes continue to occur at a rapid pace and the brain also begins to weaken, resulting in memory loss.

Answer 46

late adulthood

Question 47

True or False: Changes in the environment affect not only the plant and animal cycles but also the human life cycle.

Answer 47

True

Question 48

True or False: Many adults have been able to slow down the aging process by exercising and by practicing a balanced, nutritious diet.

Answer 48

True

Question 49

A plant may start as a _____ , then matures into a plant.

Answer 49

seed

Question 50

The stages of human development are ______, _______, _______, and _______.

Answer 50

infancy
childhood
adolescence
adulthood