Question

can you answer these
A biologist is studying two organisms, X and Y. She knows that at least one of them is an animal. Organism X only reproduces sexually. Organism Y reproduces both sexually and asexually.

Which conclusion is best supported by the information?

Organism X is an animal, and organism Y is not.
Organism Y has the benefit of not having to find a mate.
Organism X has offspring that are not genetically diverse.
Organism Y is a heterotroph, and organism X is not

Jack learned that mice, turtles, and snakes have backbones. He also found out that earthworms, butterflies, and lobsters do not have backbones. He classified the animals into vertebrates and invertebrates.





Why are Jack’s groupings incorrect?

Butterflies are vertebrates.
Mice are invertebrates.
Earthworms are vertebrates.
Lobsters are invertebrates.

When an insect is feeding on a plant, which types of tissue are at work to protect the plant and help it heal from injury?
dermal and collenchyma
parenchyma and collenchyma
vascular and dermal
ground and parenchyma

Potatoes are specialized stems that store food for potato plants. Which main tissue would you expect to primarily make up a potato?
ground
dermal
vascular
phloem

A biologist is in the process of classifying a newly discovered fungus. The fungus is a decomposer and has saclike structures. The organism most likely belongs in the same group as which of the following?
fungi that are rusts
fungi that are associated with bread mold
fungi that makes blue cheese
fungi that are autotrophic decomposers

Answer 1

Here are the answers with brief reasons:

1) Best-supported conclusion: Organism Y has the benefit of not having to find a mate.
- Reason: Y can reproduce asexually, so it can reproduce without a mate. Nothing given lets you conclude which is an animal or about heterotrophy or genetic diversity.

2) Correct choice: Lobsters are invertebrates.
- Reason: Mice, turtles, snakes are vertebrates; earthworms, butterflies, lobsters are invertebrates. Jack’s groupings (vertebrate vs. invertebrate) as stated are correct — the true statement from the choices is that lobsters are invertebrates.

3) Tissue types at work when an insect feeds on a plant: parenchyma and collenchyma.
- Reason: Parenchyma cells are involved in wound repair and healing; collenchyma provides flexible support/protection near the surface.

4) Tissue that primarily makes up a potato: ground.
- Reason: Potatoes are storage stems made mostly of ground tissue (parenchyma) that stores food.

5) The fungus most likely belongs with: fungi that make blue cheese.
- Reason: “Saclike structures” indicate Ascomycota (sac fungi); Penicillium (used in blue cheese) is an ascomycete.