Public Quiz: Unit 3 : Reproduction in Living Organisms (Science) - Preparatory 2 - Science

Question 1

Reproduction in bacteria occurs through a type of cell division that is different from human sexual reproduction.

True

False

Question 2

Which characteristic is typical of insect-pollinated flowers?

Their petals are large with bright colors and they secrete nectar.

Their pollen grains are light, dry, and smooth.

Their anthers are long and pendulous, hanging outside the flower.

Their stigmas are feathery, sticky, and often exposed outside the flower.

Question 3

An organism's size is directly determined by the number of chromosomes found in its somatic cells.

True

False

Question 4

Sexual reproduction guarantees that all offspring will be genetically identical to one of their parents.

False

True

Question 5

Pollen grains of insect-pollinated flowers are typically light, dry, and smooth.

True

False

Question 6

What path does the pollen tube follow to reach the ovule after germination on the stigma?

It grows upwards through the anther.

It grows downwards through the style.

It develops around the outside of the flower.

It penetrates directly through the ovary wall.

Question 7

An elephant has 56 chromosomes and a crow has 80 chromosomes. What conclusion can be drawn from this?

Chromosome count indicates the evolutionary age of a species.

Crows are genetically more complex than elephants.

Chromosome count does not determine an organism's size.

Elephants have fewer genes than crows.

Question 8

Willow flowers are examples of naked flowers because they lack both sepals and petals.

True

False

Question 9

What characterizes self-pollination in flowers?

Stamens and pistils mature at different times.

Pollen is transferred between flowers on two different plants.

Pollen is transferred from an anther to a stigma on the same plant.

Pollen grains are always light, dry, and smooth.

Question 10

Potato tubers reproduce sexually, requiring two parent plants.

False

True

Question 11

If a gorilla's somatic cell contains 48 chromosomes, how many chromosomes would be found in its sperm cells?

24

12

96

48

Question 12

Which of the following cell types typically contains a diploid (2n) number of chromosomes?

Ova

Somatic cells of an organism

Sperm cells

Pollen grains

Question 13

In a simple corymb inflorescence, flowers open sequentially from the bottom toward the top.

False

True

Question 14

What is a primary function of the corolla?

Anchoring the flower to the stem.

Producing pollen grains for reproduction.

Attracting pollinating insects with its bright colors and fragrance.

Developing into the fruit after fertilization.

Question 15

The pollen tube grows upwards through the style to reach the stigma.

False

True

Calculating your results... almost there!

Public Quiz: Unit 3 : Reproduction in Living Organisms (Science) - Preparatory 2

Reproduction in bacteria occurs through a type of cell division that is different from human sexual reproduction.

Which characteristic is typical of insect-pollinated flowers?

An organism's size is directly determined by the number of chromosomes found in its somatic cells.

Sexual reproduction guarantees that all offspring will be genetically identical to one of their parents.

Pollen grains of insect-pollinated flowers are typically light, dry, and smooth.

What path does the pollen tube follow to reach the ovule after germination on the stigma?

An elephant has 56 chromosomes and a crow has 80 chromosomes. What conclusion can be drawn from this?

Willow flowers are examples of naked flowers because they lack both sepals and petals.

What characterizes self-pollination in flowers?

Potato tubers reproduce sexually, requiring two parent plants.

If a gorilla's somatic cell contains 48 chromosomes, how many chromosomes would be found in its sperm cells?

Which of the following cell types typically contains a diploid (2n) number of chromosomes?

In a simple corymb inflorescence, flowers open sequentially from the bottom toward the top.

What is a primary function of the corolla?

The pollen tube grows upwards through the style to reach the stigma.