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svetoff [14.1K]
3 years ago
7

Describe how energy and matter flow, interact and change forms throughout the Earth system

Biology
2 answers:
photoshop1234 [79]3 years ago
4 0
Energy and matter characterize both physical and biological systems. These systems are defined both by the types of energy and matter they contain and by how that matter and energy move through and between systems. ... This means that energy and matter can change forms but cannot be created or destroyed.
mojhsa [17]3 years ago
4 0

Answer:

In natural systems, both energy and matter are conserved within a system. This means that energy and matter can change forms but cannot be created or destroyed.

Explanation: Energy and matter are often cycled within a system, and different forms of matter and energy are able to interact.

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A botanist has acquired a group of sweet pea plants. All of the plants have yellow pea pods (the recessive trait), except for on
Julli [10]

Answer:

Cross the green-pod plant with a yellow-pod plant.

Explanation:

To determine the zygosity of a particular individual, the best way is to cross it with a phenotypically recessive individual.

Such a cross in which an individual with unknown zygosity possessing a dominant trait is crossed with an individual possessing a recessive trait is termed as a test cross.

Therefore, in the given situation the zygosity of the green pod needs to be determined and the green pod is a dominant character. Further, it is given that a yellow pod is a recessive trait, therefore a test cross can be performed between the green pod and yellow pod, and then the offsprings can be observed.

if the offsprings are all phenotypically dominant then the green pod is homozygous and if there are phenotypically recessive offspring also present then the green pod is heterozygous genotypically.

8 0
4 years ago
After being bitten by a rabid dog, a 4-year-old child is to receive a series of antirabies inoculations. what should the nurse w
zzz [600]
The nurse should recall that rabies is caused by a v<span>iral infection characterized by seizures and difficulty swallowing.

</span> Rabies is caused by a virus that can cause inflammation of the brain in humans and other mammals. Fever, loss of consciousness, seizures and having difficulty swallowing are characteristics of rabies infection. If not treated with the <span>antirabies inoculations,</span> the disease is usually fatal.
5 0
3 years ago
What type of rock can melt under the right conditions?
Sever21 [200]
To tell you the truth, all rocks can melt under heat and pressure. For example, if a volcano erupts, the magma that is flowing can melt the rocks because of extreme heat.
6 0
4 years ago
What is the Reynolds number for blood leaving the heart through the aorta if the diameter of the aorta is 2.15 cm and the blood
defon

Answer:

b. laminar flow

the reynold number is 1329.26

Explanation:

Re = (V x D x ρ)/ η

where,

V = mean velocity = 15.9 cm/s = 0.159m/s

D = vessel diameter = 2.15cm = 0.0215m

ρ = blood density = 1050 kg/m3 = 0.00105 kg/cm3

η = dynamic viscousity= 2.70 × 10-3 Pa·s = 2.70 × 10-3 kg/m-s

applying the formular to calculate for reynolds number, Re =

Re = (V x D x ρ)/ η

   =(0.159 x 0.0215 x 1050) / 2.70 × 10-3

   =3.589/0.0027 = 1329.26

the Reynolds number for the blood leaving the heart through the aorta if the diameter of the aorta is 2.15 cm and the blood has a dynamic viscosity of 2.70 × 10-3 Pa·s, a density of 1050 kg/m3, and travels at a mean fluid velocity of 15.9 cm/s is 1329.26

which flow through the aorta in a Laminar flow

Note that

a) turbulen= Re  >4000

b) laminar= Re  <2300

c) transitioning between laminar and turbulen= Re between 2100 and 4000

3 0
3 years ago
Summarize the four concepts collectively known as the "cell theory"
sp2606 [1]

1. All living organisms are composed of one or more cells.

2. The cell is the basic unit of structure and organization in organisms.

3. Cells arise from pre-existing cells.

4. All cells maintain homeostatis.

4 0
3 years ago
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