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Furkat [3]
2 years ago
15

HELP ASAP WILL GIVE BRAINLIEST RIGHT ANSWER PLS

Biology
1 answer:
VARVARA [1.3K]2 years ago
8 0

Answer:

Explanation: 1. d    2. b  3.e  4. a

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What is an autoimmune disease?
11Alexandr11 [23.1K]

Answer:

your body is attacked by its own immune system

Explanation:

your immune system overreacts and decides to attack your body mistaking healthy objects like skin to be something unhealthy like a virus.

5 0
3 years ago
Question 10 of 10 Which molecule is used up in photosynthesis?
Eduardwww [97]

Answer:

A Carbon Dioxide ( CO2)

Explanation:

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. ... Then, via respiration processes, cells use oxygen and glucose to synthesize energy-rich carrier molecules, such as ATP, and carbon dioxide is produced as a waste product.

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How does mRNA differ from DNA?
ch4aika [34]
DNA  is made up of deoxyribose sugar  while mRNa is made up of ribose sugar. DNA has thymine as one of the two pyrimidines while mRNA has uracil as its pyrimidines base. DNA is present in the nucleus while mRNA diffuses into the cytoplasm after synthesis. DNA is double stranded while mRNA is single stranded.

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5 0
3 years ago
Matter is _______ energy because matter is always ___________ in a chemical reaction.
expeople1 [14]
It’s B because accordin to the Law of Conservation of Energy, energy cannot be created or destroyed. However, energy can transform and be conserved.
7 0
3 years ago
In the atom, which particles are in constant motion around the nucleus?
scoundrel [369]

Answer:

Electrons

Explanation:

According to the modern atomic theory, atoms are made-up of smaller subatomic particles in the nucleus. The nucleus contains two types of subatomic particles, protons and neutrons. The protons have a positively electrical charge and the neutrons have no charge. The electrons have a negative electrical charge and are able to move around the nucleus. An atom usually contains an equal number of positively charged protons and negatively charged electrons. This makes the atom itself electrically neutral. The electrons exist at different energy levels, called shells, around the nucleus where they revolve freely in a constant motion.

5 0
2 years ago
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