Answer:
A physical environment with different species that interact with one another and with nonliving things is called an ecosystem.
Ecosystem is the functional unit of nature. An ecosystem can be different in size according to the communities living in that ecosystem. Abiotic and biotic components together make an ecosystem.
Chemical and physical factors come under abiotic components. Physical components like water, air, light, temperature have more effects on the ecosystem than chemical factor.
Organisms are the biotic component of an ecosystem. They can be autotrophs or heterotrophs. Many organisms make a population, many populations combine to form community and many communities combine to form an ecosystem.
Organism↔Population↔Community↔Ecosystem
B. 40°
C. 80°
D. 100°
B. 40°
m∠BAC = 40°
But, angles in a triangle adds up to 180 degrees, therefore;
m∠BAC = 180 - (m∠ACB + m∠ABC)
= 180 - (50 + 90)
= 180 - 140
= 40°
Thus; m∠BAC = 40°
The solution of m∠BAC is mathematically given as
m∠BAC = 40°. This is further explained below.
The angle formed by two crossing lines or surfaces, commonly expressed as a number of degrees.
Generally, the equation for angle m∠BAC is mathematically given as
m∠BAC = 180 - (m∠ACB + m∠ABC)
m∠BAC = 180 - (50 + 90)
m∠BAC = 40°
In conclusion, m∠BAC = 40°
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B. respiratory system
C. circulatory system
D. excretory system
Answer:
if a substance has a pH higher than 7 it is considered to be a
base
if a substance has a pH lower than 7, it is considered to be an
acid
The substance with which an enzyme reacts is its
substrate
hope this helps you!!!!
Explanation:
is that right
Answer:
Photosynthesis is how plants live they get sunlight and turn it in to energy to survive
Explanation: