Astudent encounters a pondweed which, judging from its appearance, seems to be a charophyte. she brings a sample back to her biology lab. using only a compound light microscope to study the sample, which of the following features should her to determine whether the sample comes from a charophyte or from some other type of green alga? 1. molecular structure of enzymes inside peroxisomes2. structure of sperm cells3. presence of phragmoplasts4. rings of cellulose-synthesizing complexes

Option (2), (3) and (4).

Explanation:

Charophytes are the group of some green algae of fresh water. The cahrophyta can be included in both the division and super division.  Embryophyta has been emerged from the charophyta.

A student confirm whether the algae is charophyte or not by looking at the specific features. The cahrophytes has well defined sexual characters and the structure of sperm cell, the presence of phragmoplast confirms the charophytes. The cellulose synthesizing ring complex is also present in charophytes.

Thus, the correct answer is option (2), (3) and (4).

Option (a).

Explanation:

The botanist may be defined as the individual who does the complete study about the plants. The physical condition and environmental condition that affect the plants are studied by the botanist.

The botanist has expressed the potato plant in two different condition as explained in the question. AVR protein can cause the death of the plants. The mortality or death rate will be higher in those plants that are exposed to the oomycete species as this species will produce the large amount of protein that causes the mortality in plants.

Thus, the correct answer is option (a).