The earthworm has a closed circulatory system, and there are 3 main vessels: <span>aortic arches, dorsal blood vessels, and ventral blood vessels.
aortic arches: It functions as the heart of the earthworm
dorsal blood vessels: Responsible to carry blood to the front of the body
ventral blood vessels: Responsible to carry blood to the back of the body
hope this helps</span>
The Calvin cycle is the cycle where in sugars are produced
in the chloroplast. Calvin cycle is also known as the Calvin-Benson cycle.
Calvin cycle has three stages this is fixation, reduction, and
regeneration. Calvin cycle is needed in
Photosynthesis.
The description of soil according to Jonathan is as follows:
- Mostly large grains, with a gritty texture, 45% sand, 5% clay, and 45% silt ---- Silty loam soil.
- Mostly large grains, with a sticky texture, 55% sand, 40% clay, and 5% silt ----- Sandy clay soil.
- Mostly small grains, with a sticky texture, 30% sand, 50% clay, and 20% silt ----- Clay soil.
- Mostly small grains, with a smooth texture, 30% sand, 5% clay, and 65% silt ----- Silty loam soil.
<h3>What is Soil Texture?</h3>
Soil texture may be defined as a classification of soil on the basis of its physical appearance, texture, and properties.
In this question, the texture and composition of other soil are illustrated briefly with respect to each common soil type.
Therefore, it is well described above.
To learn more about Soil texture, refer to the link:
brainly.com/question/946875
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Answer:
4 × 10^0 kg or 4×E0 kg.
Explanation:
Before delving into or solving the Calculation, let us check one or two things about worker bees.
WHAT IS A WORKER BEE?.
Bees generally are social insects living in an organized community and they consist of three castes which include; the drone bees, worker bees, and the queen bees.
The queen bees are the female bees while the drone bees are the male bees.
The WORKER BEES are female bees too, but the only difference between them and the queen bees is that they (worker bees) do not reproduce like the queen bees. They are saddled with the responsibility of looking for food and maintaining the hive temperature.
Now to the question, the mass of a bee= 1 × 10^-4 kg. And there are 4 × 10^4 bees in hive. Therefore, the mass of all the worker bees in the hive together = (1 × 10^-4) × (4×10^4).
==> 4 × 10^0 kg, or 4E0 kg.
Answer:
There are three main reasons for European Exploration. Them being for the sake of their economy, religion and glory. They wanted to improve their economy for instance by acquiring more spices, gold, and better and faster trading routes. Also, they really believed in the need to spread their religion, Christianity.
Explanation:
