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andrey2020 [161]
3 years ago
8

Which statement is true?

Biology
1 answer:
wariber [46]3 years ago
8 0
I believe that 2 is correct. :)
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Which of the following are examples of what scientists can learn from studying fossils?
FrozenT [24]
The answer is a and c
7 0
2 years ago
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You are working as a botanist in a tropical forest and have located a small plant that has never before been seen or classified.
vichka [17]

Answer: Pteridophyte

You classify the plant as a pteridophyte

Explanation:

Pteridophytes are known to have the following:

- many cells (multicellular) and vascular bundles

- true roots, stems, and leaves

- do not produce flower throughout their lifespan

- they are mainly terrestrial plants, while few are aquatic

- do not produce seeds but reproduce asexually by formation of spores

Examples are ferns

8 0
3 years ago
When chiasmata can first be seen in cells using a microscope, which of the following processes has most likely occurred? the sep
Elina [12.6K]

When chiasmata can first be seen in cells using a microscope, the following processes has most likely occurred in prophase I.

<h3>When chiasmata can first be seen in cells using a microscope?</h3>

Recombination can occur at any two chromatids within this tetrad structure.

Crossovers between homologous chromatids can be visualized in structures known as chiasmata, which appear late in prophase I.

Thus, option "C" is correct, Prophase I.

To learn more about prophase I click here:

brainly.com/question/4137695

#SPJ1

3 0
2 years ago
Describe the different examples of active and passive transport
andrew11 [14]
Hi there!

Active Transport - Through the use of ATP, active transport pumps molecules against a particular concentration gradient. Active transport occurs from a low concentration solute and moves to a high concentration of solute. Two examples of active transport would be endocytosis and exocytosis.

Passive Transport - Active transport is the movement of molecules down a gradient. Unlike passive transport, it goes from high to low concentration and does not require energy (such as cellular energy). Some examples would be osmosis and diffusion.

I hope this helped!

6 0
3 years ago
If photosynthesizing green algae are provided with CO2 containing heavy oxygen (18O), later analysis will show that all of the f
motikmotik

Answer:

The correct answer will be option-D

Explanation:

The process of photosynthesis release oxygen from the plant which is used by the organism on earth during cellular respiration.

The oxygen released by the plants is formed through the splitting of water molecules as a result of the transfer of electrons through the electron transport chain in the thylakoid membrane during the light-dependent reaction.

Since the released oxygen is the result of the light-dependent reaction and not the light-independent reaction or Calvin cycle where heavy oxygen isotope is utilized in the cycle.

Thus, option-D is the correct answer.

8 0
3 years ago
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