The endocrine system is characterized by the secretion of hormones by target cells.
<h3>What about the endocrine system is true?</h3>
Endocrine glands produce hormones into the bloodstream. As a result of this, the hormones can now reach cells throughout the body. The regulation of mood, development, metabolism, and reproduction is aided by the endocrine hormones. The endocrine system regulates how much of each hormone is released.
<h3>What are the traits of the endocrine system?</h3>
Endocrine glands are ductless, their secretions are directly emptied into the circulation while exocrine glands have ducts. Endocrine glands are distinguished by their ductlessness, high degree of vascularization, and presence of intracellular vacuoles or granules that store hormones.
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If the elephants, just because of their size, are the only large animals that can get to the water to drink, the zebras may suffer. This is an example of Competition between species.
<h3>What is species competition?</h3>
Competition is an ecological relationship that occurs between organisms of the same or different species. We say that competition is intraspecific when individuals of the same species are involved, and that it is interspecific when dealing with different species.
Interspecific competition is an interaction between two species that causes damage to one or both of them. In general, competition can be for resources such as: space, food or nutrients, light, organic waste, among others.
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Let's break it down. We know that molecules are TWO AND MORE ATOMS so molecules is out. Cells are made up of atoms so cell could be the answer. Protons are made out of atoms which leaves D out. So we have proton and cells. Cells are made up of atoms BUT inside the atoms are protons. So answer is C)proton
Answer:
a:Triploblastic, pseudocoelomate, protostome
Explanation:
When it comes to embryonic tissue layer in animals, some have two while some have three. Those with two layers are diploblastic while those with three layers are said to be triploblastic.
Body cavity evolution also vary in animals according to their development levels. Some animals lack body cavity totally and are referred to as acoelomates, some have a mesoderm-like fluid filled cavity and are referred to as pseudocoelomates while others have true body cavity with peritoneum and are referred to as coelomates.
During embryonic development, the mouth is formed first in some animals and they are referred to as protostomes while those in which the anus are formed first are referred to as deuterostomes.
<em>Hence, the best terms that describe the animal in question are triploblastic, pseudocoelomate, protostome.</em>
The correct option is A.