i think it is 3a because when they are all together they are in like a clump so
Answer: have true roots, stems, and leaves
may have seeds
may not have seeds
have vascular tissue
Explanation:
some vascular plants have seeds and some do not.
they have vascular tissue such as xylem and phloem
they have true roots, stems, and leaves
Answer: A short incubation time runs the risk of a false negative on the VP test, since not enough time may have elapsed to produce an adequate amount of acetoin to give a positive result. The pH change associated with mixed acid fermentation occurs fairly quickly and is less likely to be affected by shorter incubation.
b) The VP test would benefit most from a longer incubation time because it takes a while for the 2,3-butanodiol to be produced.
Explanation:
The answer is C. Metalloids
<h2>Answer:</h2>
This means the dolphin is an vertebrate.
<h3>Explanation:</h3>
- Gill pouches are the structures which are present in all vertebrates in the embryonic stages while it is present in fishes and amphibian in later life also.
- It is thought to be the ancestral structures present in vertebrates. These pouches are then converted to lungs in the later life. For the water animals they are used for respiration.
- They are actually the muscular walls containing respiratory lamellae on its inner side.
- Hence in dolphin they are signs that dolphin is an vertebrate.
