I believe it's the plasma membrane :)
Some of the equipment the student can use are:
Nets
Underwater cameras
pH indicators
among others.
<h3>What does the student want to study?</h3>
The student wants to find out if there are invertebrates and fish or if the conditions of the pond would support these types of organisms.
<h3>What does the student need to do?</h3>
In this situation, there are two main approaches:
- Study invertebrates and fish: This approach implies finding out if there are already invertebrates and fish in the pond, to do this, the student can
- Directly observe organisms by using a special camera.
- Use a net to catch organisms in the pond and then classify the organisms.
- Study the conditions: This approach implies determining if the pond has the conditions for invertebrates and fish to live. To do this, the student will need to measure conditions such as:
- Nutrients in the pond.
- Temperature.
- Ph.
This will require equipment such as pH indicators.
Learn more aobut pH in: brainly.com/question/491373
Umbilical vein transports blood rich in oxygen and nutrients from the placenta to the fetus. The unpaired umbilical vein is a vein present during fetal development and it transports the nutrient- and oxygen-rich blood from the placental villi via the umbilical cord to the embryo. The umbilical vein is connected to the two intraembryonic umbilical veins.
