Unicellular organisms are devoid of circulatory systems and will be found living in moist or watery environments to facilitate uptake of nutrients and gases and expulsion of waste by the process of diffusion.
Their cell is structured such that it can engage in direct exchange of substances with its environment. Water serves as the perfect medium or environment through which this exchange can occur.
Gases and nutrients simply diffuse into the cell or are moved into the cell by means of active transport or phagocytosis.
The color of a star is primarily determined by its surface temperature.
For example, the really hot stars, called White Dwarf stars, have a white surface temperature, while a cooler star would have a more red color.
This is a symbiotic relationship between the Boxer crab and sea anemone.
<h3><u>Explanation</u>:</h3>
The symbiosis is a type of relationship between two species which has benifit for both the participating organisms.
Here in case of boxer crab, the crab gets the help from the sea anemone in the form of protection. The sea anemone chases the predators and thereby saves the organism from being hunted.
On the other hand, the sea anemone gets food from the crab's prey which he hunts.
So there's a benifit for both.
Requiring energy, like going up a hill. Always active transport.
Molecules use energy to move, so yea. Have a great day! :)
The correct option is (A) grows at its maximum per capita rate.
During exponential growth, a population always grows at its maximum per capita rate.
<h3>
What is exponential growth?</h3>
- An exponential function's curve is created by a pattern of data called exponential growth, which exhibits higher increases over time.
- Consider a population of mice that increases exponentially every year by a factor of two, starting with 2 in the first year and increasing to 4 in the second, 8 in the third, 16 in the fourth, and so on. In this example, the population is increasing by a factor of 2 year. If mice gave birth to four pups instead, you would then have 4, 16, 64, and 256.
- Linear growth, which is additive, and geometric growth can be contrasted with exponential growth, which is multiplicative (which is raised to a power).
Learn more about the exponential growth with the help of the given link:
brainly.com/question/11487261
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