Question

how are viruses different from bacteria?

Answer 1

viruses have no metabolism they are obligate parasite ( i.e. they can not reproduce without the use of a host cell) theres a ton more aswell

Answer 2

Bacteria are heterotrophic while viruses are autotrophic.

Bacteria are living organisms; viruses are not.

Bacteria have a membrane bound nucleus while viruses do not.

Bacteria are multicellular; viruses are single cells.

Answer 3

B

Answer 4

thanks

Answer 5

Why might knowledge of the gene and protein sequences of a species be useful in classifying that species?

It would keep the species from being interbred with any other species that might appear physically similar to it.

It would make it possible to compare that species to other species at a level deeper than outward appearance.

It would allow more accurate naming of the species by basing names on genes rather than appearance.

It would prove that all the members of a given species were genetically identical to each other.

Answer 6

is this for flvs?

Answer 7

yes this is the last test i have to take and i need help

Answer 8

what module and lesson?

Answer 9

module 6 exam

Answer 10

i put B

Answer 11

ok thanks

Answer 12

you did this test already?what did you get on the test?

Answer 13

80%

Answer 14

can i get your answers please

Answer 15

for what question?

Answer 16

11-22 i really need this test in order to pass this class to graduate

Answer 17

yeah but type out the questions because theyre never in the same order.

Answer 18

ok

Answer 19

Which of the following best describes a characteristic that distinguishes animals from plants?

Plants are photoautotrophs, and animals are chemoautotrophs.

Plant cells have cell walls containing cellulose, and animal cells lack a cell wall.

Plants reproduce by binary fission, and animals reproduce sexually.

Plants digest their food externally, and animals digest their food inside their bodies.

Question 12 (Multiple Choice Worth 2 points)

(06.06 LC)

Which type of plant tissue exists in the roots, leaves, and stems and is responsible for transport of water, food, and minerals?

Meristematic tissue

Ground tissue

Dermal tissue

Vascular tissue

Question 13 (Multiple Choice Worth 2 points)

(06.01 HC)

Based on the concept of phylogeny, an organism that was ancestral to both the Bacteria and Eukaryota domains would exhibit which of the following characteristics?

It would have mitochondria and other membrane-bound organelles.

It would have DNA.

It would have a nucleus.

It would have cell walls as well as cell membranes.

Question 14 (Multiple Choice Worth 2 points)

(06.08 MC)

Which of the following provides the best comparison between reptiles and fish?

They both have scales, but fish are ectothermic, and reptiles are endothermic.

They are both ectothermic, but fish have gills, and reptiles have lungs.

They are both vertebrates, but fish have three-chambered hearts, and reptiles have two-chambered hearts.

They both lay eggs, but fish are invertebrates, and reptiles are vertebrates.

Question 15 (Multiple Choice Worth 2 points)

(06.04 MC)

Which of the following best explains a characteristic that differentiates Fungi from Plants?

Fungi are made up of cells that do not have cell walls, while Plant cells have walls containing cellulose.

Fungi are unicellular and form colonies, while Plants are multicellular with specialized tissues.

Fungi are decomposers that break down dead plant and animal matter, while Plants are autotrophs.

Fungi are able to reproduce either sexually or asexually, while Plants reproduce only sexually.

Question 16 (Multiple Choice Worth 2 points)

(06.03 MC)

How are the autotrophic protists different from the heterotrophic protists?

The autotrophic protists can photosynthesize, while the heterotrophic protists cannot.

The heterotrophic protists can all move around, while the autotrophic protists are immobile.

The heterotrophic protists reproduce by spores, while the autotrophic protists form eggs.

The autotrophic protists eat by endocytosis, while the heterotrophic protists use pinocytosis.

Question 17 (Multiple Choice Worth 2 points)

(06.01 MC)

The classification system developed by Linnaeus in the early 1700s divided living organisms into plant and animal kingdoms. Today, that has been expanded into five kingdoms. Which of the following inventions was most responsible for creating the need for the additional three kingdoms and why?

The internet allowed scientists to discuss differences between organisms easily.

Genetic engineering created new species which then needed new kingdoms.

Fossil fuel-based transportation made it easier to explore and discover new species.

Microscopes made it possible to learn more about single-celled organisms.

Question 18 (Multiple Choice Worth 2 points)

(06.07 HC)

The gametophytes of an unknown plant are contained within the sporophyte, and the plant produces separate male and female gametophytes. Which the following is the best conclusion about the life cycle of this plant?

The plant is a moss, and the sporophyte is its dominant phase.

The plant is a gymnosperm, and the sporophyte is its dominant phase.

The plant is a fern, and the gametophyte is its dominant phase.

The plant is an angiosperm, and the gametophyte is its dominant phase.

Question 19 (Multiple Choice Worth 2 points)

(06.04 MC)

Which of the following correctly describes the relationship between the stolon and hyphae in fungi?

Hyphae can grow to form a stolon above ground.

Hyphae store the spores that are produced by the stolon.

Hyphae are provided structural support by the stolon.

Hyphae produce spores, and the stolon distributes them.

Question 20 (Multiple Choice Worth 2 points)

(06.02 MC)

A pathogenic strain of bacteria has become resistant to an antibiotic that once could kill it. What has happened to these bacteria to make this happen?

The bacterial cells learned to remove the receptors on their cell surfaces, making it impossible for the antibiotic to attack them.

Most of the bacteria make changes to their DNA to protect themselves, making themselves immune to future attacks.

Some of the bacterial cells were able to produce toxins against the antibiotics, making them more likely to survive.

Only the few bacteria that were immune to the antibiotic survived and reproduced, making all their offspring immune to it as well.

Question 21 (Multiple Choice Worth 2 points)

(06.07 MC)

Which of the following best describes the male and female reproductive structures of an angiosperm?

Angiosperms produce male and female gametophytes, and the male gametophyte produces spores that fertilize eggs inside the female gametophyte.

Angiosperms produce flowers, inside which the male stamens hold the pollen and the female pistil holds the ovule.

Angiosperms produce male and female cones, and the pollen from a male cone fertilizes the egg inside a female cone.

Angiosperms produce sporangia, which release spores that develop into male flowers containing pollen and female flowers containing ovules.

Answer 20

Plant cells have cell walls containing cellulose, and animal cells lack a cell wall.

Answer 21

Vascular tissue because it is responsible for transport of water, food, and minerals

Answer 22

i dont have question 13.

Answer 23

i think your second number example is not a coreect... according to my knowledge > mary171996