BIOLOGY MIDDLE SCHOOL

A student has a toy car that is green, made of iron(metal)and weighs 52 grams. If the student drops the car in a grassy field, how could the student find his toy car?A.Use a magnifier lens to find the car by its color.
B.Place a sample of the field in water to find out its density.
C.Weight samples of the area to find a sample that is 52g.
D.Place a magnet over the area to attract the car.

Answers

Answer 1
Answer:

Answer:

C is the right one

Explanation:
Answer 2
Answer: D

explanation: A magnifying lens wont help, as the car is the same color. A sample wont help either, as we dont know the density of the car and if a sample weighs 52 grams then that would mean it would be impossible for the car to be in it since there would have to be weight from the sample. The only reasonable option is D, because iron is attracted to magnets. Hope this helps!

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Which of the following organisms likely have the most similar chromosomes?A humans and frogs
B. birds and lions
C. humans and apes

Answers

Humans and apes likely have the most similar chromosomes.

Humans and apes chromosomes:

In other words, the DNA sequences of humans and chimps are 98 percent identical.

While the genetic similarities between humans and apes bolstered Darwin's theory, there remained a huge, unexplained gap. Humans only have 46 chromosomes (24 pairs), but big apes all have 48. (23 pairs).

Find our more information about 'Chromosomes'.

brainly.com/question/296477?referrer=searchResults

Answer:

C. Humans and Apes

Explanation:

It is said that we share 99% of our DNA with apes

A model organism is a species that researchers study to better understand certain biological processes. Mollusks and arthropods are commonly used as model organisms for studying mechanisms of learning and memory, while sponges and jellyfish are not. Why is this?A.
Mollusks and arthropods can detect stimuli from their environment, while jellyfish and sponges cannot.
B.
Mollusks and arthropods exhibit cephalization, while jellyfish and sponges do not.
C.
Mollusks and arthropods exhibit segmentation, while jellyfish and sponges do not.
D.
Mollusks and arthropods can respond to changes in their environment, while jellyfish and sponges cannot.

Answers

The correct answer is option D

The model organisms is a species that researchers use to understand certain biological features. These species are arthropods and Mollusks tend to respond to environment better as compared to the jellyfish and sponges.

Jelly fish and sponges lack nervous system and they do not respond to the stimuli generated by the environment.

Hey there Brainly peep!

They can respond to changes in their environment which the answer is  

D. Mollusks and arthropods can respond to changes in their environment, while jellyfish and sponges cannot.


Hope this helped

Which statement most correctly describes the role of a connecting protein

Answers

I remember the secondary structure by visualizing it. Understand that primary structure is just the order of the amino acids. The tertiary structure is the 3dimensional configuration of the whole protein molecule with multiple interactions guiding its fold (disulfide bonds, ionic interactions, hydrogen bonds, van der walls). Secondary structure is a step towards the conformation of the protein where it is made up of either alpha-helices or beta-pleated sheets. The alpha helices look like a spiraling staircase while the beta-pleated sheets look like a repetition of long loops. These two structures hold itself by hydrogen bonds.

After mature mRNA is created (see first diagram) where might it go (see second diagram)?Question 6 options:

Inside a chromosome to be stored for future use when the cell is copied


Into the chloroplast to become part of the photosynthesis process


mRNA crosses the cell wall and exits the cell to enter the bloodstream to make protein with the white blood cells


The rough endoplasmic reticulum to created proteins that can be packaged in vesicles.

Answers

Answer:

After mature mRNA is created, it migrates to the cytoplasm then to the rough endoplasmic reticulum to create proteins that can be packaged in vesicles.

Explanation:

Translation is the process by which mRNA is decoded and translated to produce a polypeptide sequence, otherwise known as a protein. This method of synthesizing proteins is directed by the mRNA and accomplished with the help of a ribosome, a large complex of ribosomal RNAs (rRNAs) and proteins. In translation, a cell decodes the mRNA genetic message and assembles the brand-new polypeptide chain. Transfer RNA, or tRNA, translates the sequence of codons on the mRNA strand. The main function of tRNA is to transfer a free amino acid from the cytoplasm to a ribosome, where it is attached to the growing polypeptide chain. tRNAs continue to add amino acids to the growing end of the polypeptide chain until they reach a stop codon on the mRNA. The ribosome then releases the completed protein into the cell.

How are prokaryotes useful to our world? Provide one example

Answers

They train our immune system so it's ready when our bodies are attacked, and they aid in digestion and supply us with vitamins. ... Scientists and doctors can even utilize prokaryotes to help the human body.

Explain intelligence.A. the ability to respond to the environment
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C. the ability to learn from others
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Answers

B. The ability to respond to the environment good decision

Answer:

B. the ability to solve problems and make good decisions

Explanation:

Intelligence is attained in many different ways through many influences, both social and personal.
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