BIOLOGY MIDDLE SCHOOL

What organelle controls a cell's activities?

Answers

Answer 1
Answer: The nucleus controls the cell's activities.
Answer 2
Answer:

Final answer:

The nucleus is the organelle that controls a cell's activities. It contains the cell's DNA and guides the production of proteins and other important components.

Explanation:

The organelle that controls a cell's activities is the nucleus. It acts as the 'brain' of the cell, directing cellular functions and containing most of the cell's DNA. This DNA serves as instructions for the cell, guiding the production of proteins and other important cellular components. The nucleus communicates these instructions by RNA messages to the rest of the cell, ensuring its proper functioning.

Learn more about Nucleus here:

brainly.com/question/32911597

#SPJ6

Related Questions

Your cell takes in oxygen, water and food. What is one waste products that leaves your cells?
Que es la contaminacion del aire
El origen y evolucion del univereso
Scurvy is a disease that results from a vitamin C deficiency. In the past, scurvy frequently affected sailors because they were unable to keep supplies of fresh fruit while at sea.Given this information, it is possible to conclude that scurvy is a disease that is primarily caused byA. poor nutrition.B. organ malfunction.C. inheritance.D. toxic substances.
How the metabolism of hetero trophy differs from that of autotrophs

How does mudstone turn into metamorphic rock?A. After a short period of time, particles of rock dissolve and harden again.


B. After many years, groundwater discolors and changes the rock.


C. Over a long period of time, temperature and pressure build up and change the rock.


D. Over time, layers form and spread out over a wide area to form rock.

Answers

Answer:

Option (C)

Explanation:

Sedimentary rocks are formed due to the compaction and lithification sediments. For example, mudstone, sandstone, and shale.

Metamorphic rocks are those rocks that are formed when a sedimentary/igneous/other metamorphic rocks undergo changes in the pressure and the temperature conditions. Temperature and pressure are the main factors here. For example, slate, phyllite, schist, and gneiss.

Mudstone is a sedimentary rock that can convert into a fine-grained and foliated metamorphic rock called slate due to the increase in the temperature and pressure.

Hence, the correct answer is option (C).

C is the answer.

Metamorphic rocks is when a rock changes under time and lots of pressure.

Sedimentary is rocks made of sediment.

Igneous rocks are rocks that are made of magma.

Knowing this, C is closest to the definition of metamorphic rocks.

1. Some bloodsucking insects insert their mouthparts directly into a blood vessel and withdraw biod. Otherbloodsucking insects have mouthparts that cut through the skin and blood vessels, and produce a small poslo
blood from which they feed. Both mouthparts types are specialized for:
a autotrophic nutrition b. heterotrophic nutrition c regulation d excretion

Answers

Answer:

The answer is heterotrophic nutrition because mosquitoes depend on your blood for survival, and autotrophic nutrition is for plants! Hope this helps! Stay safe and don't get coronavirus!

Explanation:

PKU (Phenylketonuria) is an autosomal recessive disease, in which the synthesis of amino acid Tyrosine from Phenylalanine is blocked. As a result, an excess of Phenylalanine gets converted into phenylketones, which appear in the urine. In severe conditions it may also result in damage to the brain.The gene responsible for this is p, whereas the gene P is responsible for normal synthesis of Tyrosine. In a small population of Brazilian natives, the frequency of gene p, responsible for this disease, is 0.3. What must be the frequency of people who are heterozygous for this disease? ( p + q = 1, p2 + 2pq + q2 = 1) A.0.56
B.0.35
C.0.42

Answers

The answer is; C

Use the Hardy Weinberg equiation for population in assumed equilibrium. ( p+q = 1)

If p = 0.3 then q=1-p = 1-0.3 = 0.7

People who are heterozygous for the disease are represented by 2pq = 2 * 0.3 * 0.7

0.42


How is friction harmful when riding a bike?

Answers

Friction helps stop a bike when you use the brakes, but it can be harmful by slowing your speed down, if you hit the brakes hard at the sudden moment, you could possibly tumble and or fall. It also causes heat, so if not used correctly, that can be an injury. If you were to fall from the sudden stop, you could possibly hit the ground which can cause a knee injury and or scrapes.
Friction is harmful, because if you fall off a bike and friction occurs, you could get scraped/burned BADLY, or if you go on too high of a speed, your tires could burn off due to friction.
I hope I helped! =D

Why are there so many kinds of proteins when there are only 20 different amino acids?

Answers

Let show you an example:
To show a number, for example, 6789, will you agree with me that we will always use those numbers : 1,2,3,4,5,6,7,8,9 and 0. 

Same thing for amino acids, there are 20, but they can make endless combinations. 

TAG-CAA-CCC OR GGC-AAA-TAT-CCA 
etc.

Which is true regarding all X-linked disorders?Group of answer choices

they result in a longer lifespan

they are caused by mutations of the X chromosome

they are linked to an unknown chromosome

they are disorders that affect only women

Answers

Answer:

they are caused by mutations of the X chromosome

Explanation:

The X chromosome contains many genes in addition to those that determine sex. Certain hereditary defects determine by recessive genes are linked to the X chromosome. The disorders are caused by mutations of the X chromosomes.
Other Questions
What would you need to do to make a drum have a louder sound
If a plant were to absorb a substance that readily reacts with carbon dioxide in the stroma, the dark reactions would be most likely to:
Which process does not occur in animal cells
SOMEONE HELP IM FAILING BIO What is the process that breaks down glucose? What is the product of the process?