Question

can you answer these

Phytoplankton, shown on the left in the image below, are microscopic organisms that can be found in freshwater and salt water environments. They perform photosynthesis to get energy and act as an important food source for larger organisms, such as the whale that is shown on the right.

Phytoplankton A large whale.

Which characteristic describes the whale but not its food source, the phytoplankton?
The whale is heterotrophic.
The whale has cell walls.
The whale is unicellular.
The whale is a prokaryote.

When protists and fungi are compared, which feature is unique to protists?
spores
hyphae
flagella
pseudopods

An organism has the following characteristics: cell wall, autotrophic, unicellular, and eukaryotic. What kingdom does it most likely belong in?
Animalia
Protista
Plantae
Eubacteria

Which can modern taxonomy do?
design tables based on physical characteristics
compare the length of DNA among members of a species
compare the length of RNA among members of a species
distinguish how closely related organisms are

Which correctly distinguishes between how a pine tree and an apple tree reproduce?
The pine tree bears flowers; the apple tree does not have any flowers.
The pine tree has unprotected seeds; the apple tree has seeds in fruit.
The pine tree is vascular; the apple tree is a seedless, nonvascular plant.
The pine tree is nonvascular; the apple tree is vascular.

Answer 1

1) The whale is heterotrophic.
- Phytoplankton are autotrophic (photosynthetic); whales obtain energy by eating other organisms.

2) Pseudopods.
- Pseudopods (amoeboid movement/feeding) are found in some protists but not in fungi.

3) Protista.
- A unicellular, eukaryotic, autotrophic organism with a cell wall is most consistent with many protists (e.g., single-celled algae).

4) Distinguish how closely related organisms are.
- Modern taxonomy uses molecular data (DNA/RNA sequences) to determine relationships.

5) The pine tree has unprotected seeds; the apple tree has seeds in fruit.
- Pines are gymnosperms (seeds exposed in cones); apples are angiosperms (seeds enclosed in fruit).