There are twenty amino acids in living organisms. Ten of these are referred to as essential amino acids.
Why are they called essential amino acids?
These amino acids are the only ones that are important for the body to function properly.
These amino acids cannot be made by the human body and must be consumed in one's diet.
These amino acids are the only ones that are made by the human body.
O
DONEV

Answer:

It is “These amino acids cannot be made by the human body and must be consumed by one’s diet.”

Explanation:

A healthy body can produce non-essential amino acids by itself, while we need to acquire the essential amino acids via our diet to be healthy.

SOMEONE PLEASE HELP ME WITH THIS PLEASE PLEASE PLEASEE!!!!!

you are pushing a box to the right with a force of 15n. The friction from the floor opposes the movement with a force of 5n. What is the net force

Which of the following would be an example of a pure substance
A: salt water
B: Gold
C: vegetable oil
D: Steel

what temperature allows for the best solar panel operation ? ​

Identify three factors that affect the Jet Stream.

can you die from getting stabbed in the head.

What would cause a person’s eye color to change from blue to green while that person was a child?

ill give a special golden crown!!

A feature of an organism.

In a circuit diagram, what does this symbol represent?
a resistor
a light bulb
a battery
a switch

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Write your scientific argument here to support one of the claims above. Be sure to follow the format discussed in the lesson: Claim + Evidence + Reasoning. Include at least two pieces of evidence and two key concepts for reasoning

ITS ABOUT TITAN LAKE

HERE A EXPLAME

I think that the lake CHOSSE EITHER froze/evaporated. One piece of evidence to support this is (evidence from cards) . Another piece of evidence to support this is (evidence from cards). This is because (include key concepts).

Help pls. I will give brainliest.

A plant has a genetic defect that causes its leaves to dry out, becoming brittle and prone to injuries. The genetic defect most likely causes each leaf to lack a _______

It's either cuticle or sufficient root

Mid-ocean ridges are places where tectonic plates are doing what?

1. Colliding
2. Sliding past each other
3. Spreading apart
4. none of the above

Four groups of students plan scientific investigations to answer four questions for the science fair. Which question would most likely be answered with an experimental investigation? 1 2 3 4

How do small food molecules such as glucose get from ur gut to the cells ​

Write down where the fingerprint is an Arch, Loop, or Whorl

3. How is this process similar to runners and tubers?

Meiosis is a type of cell division that has 2 rounds of division that creates 4 diploid somatic cells that are genetically identical to the parent cell.

What part of the fruit do you think aids in plant reproduction? Explain why you
think so.

A plate moving at a rate of 4 cm is moving toward a plate that is 10,000 km away. In how many years will the plates
collide?
year
O 250 million years
0 2,500 years
O 25 thousand years
O 250,000 years

⚠️⚠️ i am getting closer to finishing ⚠️⚠️

Salt water is a
A. Compound
B. Element
C. Heterogenous
D. Homogenous

PLEASE HELP
An urban ecosystem is a designed ecosystem. Which of the following is (are) another example(s) of a designed ecosystem?
a. natural pond
b. a farm that has not been maintained for 10 years
c. fish aquarium
d. all of the above

16. Which of the following is an advantage of a synthetic fertilizer?
a. Amounts of nutrients can be precisely measured
b. Nutrients are lost from the soil through leaching
c. Benefits natural nutrient cycling
d. Less danger of overfertilizing

A biology teacher placed a chicken egg in vinegar to dissolve the shell exposing the cell membrane. the teacher then placed the egg in a solution of sodium chloride in water in order to demonstrate cellular transport what type of cellular transport is the teacher demonstrating?

A. facilitated diffusion
B. active transport
C. filtration
D. Osmosis

When plants need to store the extra glucose they make during photosynthesis, they join the glucose molecules together to make

The cell membrane controls what enters and exits the cell to maintain
OA
energy
B
photosynthesis
С
respiration
D
homeostasis

Lesson Worksheet
Multiple Choice
Circle the letter of the correct choice.

1 Which of the following is the basic unit of matter?
molecule
chemical compound
atom
nucleus

2 Water is an example of a(n)
atom
molecule
ion
native element

3 An atom is only an ion if it has more or less
neutrons than electrons
protons than neutrons
neutrons than protons
electrons than protons

4 An example of a pure element is
table salt
silicon dioxide
sulfur
calcium carbonate

5 The crystal shape of a mineral
shows how the atoms are arranged
will always be the same if it is made from the same atoms
can usually only be seen under a microscope
can help account for how hard or brittle a mineral is

True or False
Write true if the statement is true or false if the statement is false.
_______ 6. A molecule is the smallest unit of an element.
_______ 7. Protons and electrons are found in the nucleus of an atom.
_______ 8. Halides (salts) make up the largest group of minerals on Earth.
_______ 9. Coal and diamonds are different minerals because they have a different structures.
_______ 10. In a crystal, the atoms are arranged in a pattern.
Fill in the Blanks
Fill in the blank with the term that best completes the sentence.
11. 90% of Earth’s crust is made of minerals in the group called a(n) ______________________.
12. The _______________ makeup of a material is the different atoms and molecules that it is composed of.
13. Even though calcium carbonate is made by marine animals, it is still ____________________.
14. ___________________ is the substance of which physical objects are made.
15. Electrically neutral particles are called _________________.
Short Answer

What is the difference between the Greenhouse Effect and Global Warming?

help me with this question please!!​

What are the uses of the energy provided by ATP in the living cells?

This happens when water vapor rises, cools off then gets closer together and forms clouds.


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