Based on the video, what is the function of tRNA molecules?
tRNA molecules copy the information contained in DNA.
tRNA molecules bring amino acids for the ribosome to link together.
tRNA molecules move proteins out of the cell.
tRNA molecules move along a section of DNA and unzip it.


Will give brainliest and 10 points and thank your answer if get it right!

Answer:

-5

-3

-1

-4

-2

Explanation:

Answer: the last ones wrong because to have lots of biodiversity you need different types of plants or organisms

A tundra has little to no trees

The habitat one is correct

Explanation:

Answer:

cell, tissue, organ, organ system, organism

Explanation:

Alright! This will be a snap! All living and non-living things are made of one or more unique substances called elements, the smallest unit of which is the atom, (for example, the element oxygen (O) is made of O atoms, carbon (C) is made of C atoms and hydrogen (H) is made of H atoms. Atoms combine to form molecules. Molecules can be small (for example, O2, oxygen gas, which has 2 atoms of the element O; CO2, carbon dioxide, which has 1 atom of C and 2 of O), medium (for example, C6H12O6, glucose, which has 6 atoms of C, 12 of H, and 6 of O); or large (for example molecules called proteins are made of hundreds of atoms of C, H, and O with other elements such as nitrogen (N). Molecules are the building blocks to all structures in the human body.

All living structures are made of cells, which are made of many different molecules. Cells are the smallest independent living thing in the human body. The body is made of many different cell types, each with a particular function, (for example muscle cells contract to move something, and red blood cells carry oxygen). All human cells are made of a cell membrane (thin outer layer) that encloses a jelly-like cellular fluid containing tiny organ-like

structures called organelles. There are many types of organelles, each with a particular function (for example, organelles called mitochondrion provides energy to a cell). Different types of cells contain different amounts and types of organelles, depending on their function, (for example muscle cells use a lot of energy and therefore have many mitochondria while skin cells do not and have few mitochondria).

As in other multicellular organisms, cells in the human body are organized into tissues. A tissue is a group of similar cells that work together to perform a specific function. There are four main tissue types in humans (muscular, epithelial, nervous and connective). An organ is an identifiable structure of the body composed of two or more tissues types (for example, the stomach contains muscular tissue made of muscle cells, which allows it to change its shape, epithelial tissue which lines both the inner and outer surface of the

stomach, nervous tissue which sends and receives signals to and from the stomach and the central nervous system, and connective tissue which binds everything together). Organs often perform a specific physiological function (for example, the stomach helps digest food). An organ system is a group of organs that work together to perform a specific function (for example, the stomach, small and large intestines are all organs of the digestive system, that work together to digest foodstuff, move nutrients into the blood and get rid of waste). The most complex level of organization, the human organism is composed of many organ systems that work together to perform the functions of an

independent individual.

SUPER HAPPY TO HELP!!!!! :) (P.s. can you please give me brainliest?)

Answer:

wheres the sentence so I can fill in the blank

Explanation:

Based on the nature of the immune response, the statement that best describes an immune response is, It usually involves recognition and destruction of pathogens; option B.

An immune response is a response produced by the body's immune system in response to a foreign body or pathogen.

Features of an immune response include;

Therefore, the statement that best describes an immune response is, It usually involves recognition and destruction of pathogens; option B.

Learn more about immune response at: https://brainly.com/question/15975169

Answer:

deth

Explanation:

If the digestive system stope work you would drown you you own vomit

c is the answer :)

sorry if im wrong :(

Answer:

it is the 3rd one

Explanation:

Answer:

A apple is not an organ but it is a product from a apple tree. The apple tree produces the apple from its reproduction system, which shows that a apple could not be an organ.

Answer: a c b d

Explanation:

hope that helps

Answer:

A C D B

Explanation:

edg 2021

Answer:

Mans name was GeorgeNotFound

Explanation:

Answer:

Male is homo-zygous recessive and female is hetero-zygous

Answer: cell —> tissue —> organ —> organ system

aka. D

Answer:

extremely cold

Explanation:

Answer:

hii

Explanation:

Answer:

Anything that eats the sea duck would also catch the disease and then it would pass on a create a pandemic and can you put me as brainiest.

Explanation:

Answer:

A stimulus is anything that can trigger a physical or behavioral change. The plural of stimulus is stimuli. Stimuli can be internal or external.

Answer:

field 1 is bigger field  is smaller 2 question field 2 biodiveristy

Explanation:

Petroleum now let's see...Petroleum also used for cars and other vehicles is distributed around the world for different uses. Today, fossils fuels are necessary for human survival and everyday life and are the primary source for the world’s energy. They are used for heating, transportation, generating electricity, and creating common products like computers, cosmetics, paint, and household appliances.

Answer:

Conduction

Explanation:

Because "Conduction" means feeling warmth or heat

Answer:

vacuole -> stores water, waste and food

ribosome -> produces proteins

chloroplast -> converts energy

lysosome -> breaks down

cell membrane -> seperates

Explanation:

Answer:

3. Cardiac muscle cells - are used to help the heart beat and pump blood.

2. Smooth muscle cells- are used in the digestion of food.

1. Skeletal muscle cells- are involved in movements of the skeleton (bones).

Explanation:

There are three types of muscle cells - skeletal, cardiac and smooth.

The skeletal muscle cells are the ones that form the muscle and help to contract and relax. The muscles for movement to take place. these are voluntary muscles and appears striated when viewed under a microscope.

The cardiac muscles are the ones that are found in the heart and are involved in the contraction of the heart for pumping the blood and making the heartbeat. These are involuntary muscles and appear striated under the microscope.

The smooth muscles are the ones that are used to control the involuntary movements in the body except for the heart. Since digestion involves involuntary muscles these are located in the walls of the digestive organs such as stomach and intestine. These muscle cells are non-striated.

Hope this helps

Answer: Smooth Muscles, Cardiac Muscle, and Cardiac muscle.

Explanation:

Smooth Muscles

Visceral muscle is found inside organs like the stomach, intestines, and blood vessels. Visceral muscles are the weakest of all the muscles. Their main function is to move substances through the organ.  This type of muscle is also called plain, unstriped, non-striated, visceral, or involuntary muscles.  Visceral muscles are also called involuntary muscles as they are controlled by the part of the brain which cannot be directly controlled by the conscious mind.  Smooth muscles do not exhibit cross-striations under a microscope, being plain and smooth in form and their uniform appearance, when viewed under a microscope, has led to the term smooth muscle. The smooth muscle fiber is an elongated, spindle-shaped cell, with a single nucleus placed centrally; the myofibrils show longitudinal striations.  They are supplied by autonomic nerves and are capable of sustained contraction, and, therefore, do not fatigue easily.  They provide motor power for regulating the internal environment related to digestion, circulation, secretion, and excretion.  These are less dependent on nervous control, being capable of contracting automatically, spontaneously, and often rhythmically.  Muscles of the blood vessels, and the arrector pili or erector pili muscles of the skin are examples of smooth muscles.

Cardiac Muscle

This type of muscle, as the name suggests is found in the heart. It is intermediate in structure, being striated and at the same time involuntary.  It is meant for automatic and rhythmic-contractions. These fibers have a single nucleus placed centrally which branches and anastomoses with the neighboring fibers at intercalated discs (apposed cell membranes). The cross-striations are less prominent than those in the skeletal muscle.  It is responsible for pumping blood. It is unique as it stimulates itself to contract [autorhythmic or intrinsically controlled] by a pacemaker which is also made of cardiac muscle tissue.  The cells of cardiac muscle tissue are striated—that is, they appear to have light and dark stripes when viewed under a light microscope. The arrangement of protein fibers inside the cells causes these light and dark bands. Striations indicate that a muscle cell is very strong, unlike visceral muscles.  The cells of cardiac muscle are branched X or Y-shaped cells tightly connected by finger-like projections from two neighboring cells [called intercalated discs] that interlock and provide a strong bond between the cells.  The branched structure and intercalated discs allow the cells to resist high blood pressures and the strain of continuous working. These features also help to spread electrochemical signals quickly from cell to cell so that the heart can beat as a unit.

Skeletal Muscles

Skeletal muscles are types of muscles that are most abundant and are found attached to the skeleton. They are also called striped, striated, somatic, or voluntary muscles.  They exhibit cross-striations under the microscope and are considered to be the best-differentiated form of muscle.  They are supplied by somatic (cerebrospinal) nerves, and, therefore, are under voluntary control, with certain exceptions.  They respond quickly to stimuli, being capable of rapid contractions,  and help in adjusting the individual to an external environment. They also get fatigued very easily.  Each muscle fiber of skeletal muscle is a multinucleated cylindrical cell, containing groups of myofibrils. Myofibrils are made up of myofilaments of three types (myosin, actin, and tropomyosin). These are the actual contractile elements of the muscle.  These are under the highest nervous control of the cerebral cortex.  Examples of these types of muscles are muscles of limbs and body wall, and bronchial muscles are examples of skeletal muscles.

Answer:

gives cell shape - d

distributes proteins- c

converts energy - b

stores water, waste, and food  - a

Explanation:

Match the labeled parts of the cell to their functions.

Gives the cell its shape:

✔ D

Stores water, waste, and food:

✔ A

Converts energy from the sun to chemical energy:

✔ B

Packages and distributes proteins:

✔ C

Answer:

cellular respiration

Explanation:

100% sure photosynthesis is for plants

Answer:

the answer is A and C

Explanation:

Answer:

The answer to your problem would be to choose the first answer, & the last answer.

Explanation:

the atmosphere blocks out most of the sunlight, & blocks off almost all of the U.V. radiation.

Your welcome.

Best of luck to ya in your school,

James Lester.

Answer:

A shark's skeleton is made of cartilage , a type of strong but flexible tissue .Most other fish are covered in smooth , flat scales . A shark is covered in sharp , toothlike scales called denticles . Most other fish have flaps over their gills.

Explanation:

I hope it's help yu and plz mark me brainliest........... plz plz plz

Explanation:

their size , sharks have big teeth but fishs not

Answer:

a #3

b#2

c#1

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Answer:

Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today paleontologists can determine the age of fossils using methods like radiometric dating and categorize them to determine the evolutionary relationships between organisms.

Explanation: