Characteristics of life , Water cycle, Biotic and Abiotic factors, Food chain , levels of organization.
Answer:
The eccentricity of an ellipse is between 0 and 1 because the distance from the fixed point on the plane has a constant ratio which is less than the distance from the fixed line in the plane.
Explanation:
in other words ,The eccentricity of an ellipse is defined as the ratio of the distance between its two foci and the length of the major axis
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Answer:
A. Plants and/or animals relocated or died.
Explanation:
Plants and animals will eventually come back, so that is a short-term effect on the ecosystem.
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Answer:
pituitary gland-growth hormone
thyroid gland- thyroxine
adrenal gland- adrenalin
pancrease- insulin
ovary-estrogen
testis-testosterone
Explanation:
The correct order of structures is mouth, oesophagus, crop, stomach(proventriculus), gizzard, intestine, and anus.
<h3>The digestive tract of birds</h3>
The digestive tract of birds starts from the mouth and ends at the anus.
As the food enters the oesophagus through the mouth, it is pushed down to the first stomach called the proventriculus.
Hydrochloric acid, mucus and a digestive enzyme, pepsin, are secreted by specialized cells in the proventriculus and start the process of breaking down the structure of the food material.
Food substances that are hard to digest are transferred to the gizzard. Nutrients are absorbed in the intestines and undigested food substances are removed through the anus.
Learn more about the alimentary canal here:
brainly.com/question/881890
