LESSON 2

Question 1

ANIMALS ARE THE ________ OF OUR PLANET.

Answer 1

BREATH

Question 2

Plants, in spite of being immobile, are capable of coping with the demands of the environment by utilizing mechanisms of control, adaptation, and reproduction. Meanwhile, animals, typically mobile, also develop efficient mechanism in moving, sensing, obtaining food, and other methods to respond to the environment

Answer 2

ANIMAL FORM AND FUNCTION

Question 3

can reproduce in three main ways

Answer 3

Animals

Question 4

Animals can reproduce in three main ways:

Answer 4

-asexually
-sexually
-both methods.

Question 5

offspring are exact genetic copies of the parent (clones).

Answer 5

asexual reproduction

Question 6

They inherit identical DNA since no mixing of genetic material occurs.

Answer 6

asexual reproduction

Question 7

common in many animals, especially simpler organisms.

Answer 7

asexual reproduction

Question 8

asexual reproduction can happen in three main ways:

Answer 8

-Regeneration
-Budding
-Parthenogenesis.

Question 9

Animals regrow missing or broken body parts, sometimes forming new individuals.

Answer 9

REGENERATION

Question 10

A new organism grows as a small outgrowth (bud) on the parent’s body

Answer 10

BUDDING

Question 11

Offspring develop from unfertilized eggs. The egg divides and grows without being fertilized

Answer 11

PARTHENOGENESIS

Question 12

process where two organisms, typically of different sexes (male and female)

Answer 12

SEXUAL REPRODUCTION

Question 13

contribute genetic material to produce offspring.

Answer 13

SEXUAL REPRODUCTION

Question 14

refers to a type of sexual reproduction where the sperm and egg cells look the same.

Answer 14

Isogamy

Question 15

is the more common pattern of sexual reproduction in most animals, including humans. In this system, there is a distinct difference in size and appearance between the two types of gametes.

Answer 15

Anisogamy

Question 16

Animal reproductive cell

Answer 16

Gametes

Question 17

male gametes-
female gametes-

Answer 17

sperm cells
egg cells

Question 18

is a graphical representation of the possible genotypes of an offspring arising from a particular cross or breeding event

Answer 18

Punnett square

Question 19

the sperm and egg combine to form a zygote, a fertilized egg

Answer 19

FERTILIZATION

Question 20

The zygote now has a full set of genetic material, called a ______

Answer 20

diploid

Question 21

diploid no.
haploid no.

Answer 21

46 chromosomes
23 chromosomes

Question 22

Diploid Cytomel

Answer 22

-Diploid
-Haploid

Question 23

organisms that have both male and female reproductive organs.

Answer 23

HERMAPHRODITES

Question 24

This means they can produce both sperm and eggs within the same individual.

Answer 24

HERMAPHRODITES

Question 25

The nature of development is related to the reproductive strategy of a particular species.

Answer 25

ANIMAL REPRODUCTIVE DEVELOPMENT

Question 26

a type of life cycle where an animal does not develop directly into its adult form after hatching.

Answer 26

INDIRECT DEVELOPMENT

Question 27

Instead, it passes through one or more intermediate stages, called larval stages, before becoming an adult.

Answer 27

INDIRECT DEVELOPMENT

Question 28

Animals are born or hatched looking like smaller versions of the adult.

Answer 28

DIRECT DEVELOPMENT

Question 29

They don't go through a separate larval stage, like a caterpillar turning into a butterfly.

Answer 29

DIRECT DEVELOPMENT

Question 30

Instead, they grow bigger and mature, but their basic form stays the same.

Answer 30

DIRECT DEVELOPMENT

Question 31

Animal sex organs

Answer 31

Gonads

Question 32

male gonads female gonads

Answer 32

testes ovary

Question 33

are the primary sex organs in animals which produce gametes.

Answer 33

GONADS

Question 34

the process of making sperm (in males) and eggs (in females).

Answer 34

GAMETOGENESIS

Question 35

process in making sperm

Answer 35

SPERMATOGENESIS

Question 36

process in making egg cell

Answer 36

OOGENESIS

Question 37

Rapid cell divisions that leads to a multicellular embryo

Answer 37

cleavage

Question 38

process of gastrula

Answer 38

Zygote-(cleavage)-Eight-cell stage-(cleavage)-Blastula(Blastocoel)-Gastrulation-Gastrula

Question 39

animals have formed ways to obtain, process, and digest food as __________

Answer 39

heterotrophs

Question 39

In the course of evolution, animals have formed ways to obtain, process, and digest food as heterotrophs. Some were able to establish symbiosis with other organisms to perform this function.

Answer 39

ANIMAL NUTRITION

Question 40

type of relationship between two living organisms in which one organism benefits from the other without harming it.

Answer 40

Commensalism

Question 41

is a symbiotic relationship in which one organism benefits while the other is harmed.

Answer 41

Parasitism

Question 42

Male germ cell

Answer 42

Spermatogonia

Question 43

Female germ cell

Answer 43

Oogonia

Question 44

DNA

Answer 44

-Histone proteins -Chromatin -Chromatids

Question 45

2 1

Answer 45

-sister chromatids -chromatids

Question 46

immature sperm

Answer 46

Spermatids

Question 47

how many sperm produced after a spermatogenesis

Answer 47

4

Question 48

human organ system

Answer 48

11

Question 49

release by a animal

Answer 49

pheromones

Question 50

is a state of minimal activity and metabolic depression undergone by some animal species.

Answer 50

Hibernation