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blsea [12.9K]
4 years ago
5

The Sun is the primary source of energy for ecosystems. The Sun emits . When an organism obtains nutrients by feeding on other o

rganisms in the ecosystem, energy is used and released. Energy changes form, but it isn’t destroyed as it transforms. This scientific law is called the law of
First Blank.
1. Chemical energy
2. Mechanical energy
3. Radiant energy

Second Blank.
1. Conservation of energy
2. Conservation of matter
3. Transformation of energy

Biology
2 answers:
riadik2000 [5.3K]4 years ago
7 0

The right answers are : Radiant energy and Conservation of energy.

Radiant energy, or radiative energy, is the only energy that can propagate in a vacuum, in the absence of matter. It is based on the principle of electromagnetic radiation, itself based on photon displacement. On a daily basis, radiant energy is very present; this is how the sun illuminates us.

-The energy of an isolated system can not be destroyed or created .

➥The energy is conserved, and can be transferred from one part of the system to another and / or change shape (heat, speed ...) .

➥Energy can also switch from one system to another.

Alexus [3.1K]4 years ago
7 0

Answer:  Radiant Energy and Conservation of Energy.

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National goals such as those from Healthy People 2010 and the Centers for Disease Control and Prevention (CDC) encourage curricu
goldenfox [79]

Answer: 16.7%

Explanation: Children and adolescents (ages 6 to 17 years) engage in 60 minutes or more of moderate-to-vigorous physical activity daily as described by the CDC in The Physical Activity Guidelines for Americans (second edition).

However, elementary and high schools usually run from 8 a.m to 3 pm (or 3.30pm in some cases) daily. High school students take six one-hour classes or four 90-minute classes and an hour lunch break daily.

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3 years ago
Sickle cell anemia is known to run in a family. A pedigree chart for this family is shown below. The parents are shown at the to
Simora [160]

Answer:

25%

Explanation:

From the description;

The parents: half shaded circle and square = heterozygous parents

The offspring:

unshaded square = homozygous normal

half shaded circle = heterozygous normal

half shaded circle = heterozygous normal

completely shaded square = affected (homozygous abnormal)

The unshaded and half shaded offspring are normal and do not have sickle cell anemia. The completely shaded square represents a male offspring with sickle cell anemia.

<em>Out of 4 offspring, 1 is affected for sickle cell anemia. Hence the percentage of the offspring that have sickle cell anemia is 25%.</em>

4 0
3 years ago
Read 2 more answers
A black coat is dominant over brown coats in guinea pigs. Cross two heterozygous guinea pigs to see
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5 0
3 years ago
Which Cell Parts are ONLY in Plant cells?
Lapatulllka [165]

Answer and Explanation:

The plant cell has a cell wall, chloroplasts, plastids, and a central vacuole—structures not found in animal cells. Plant cells do not have lysosomes or centrosomes.

3 0
3 years ago
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Where does the oxygen come from that is produced as a by-product of photosynthesis?
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It comes from a unicellular organism named Chloroplast that produces a green pigment substance called chlorophyll, this where oxygen is produced as a by-product of photosynthesis.

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3 years ago
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