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3 years ago

Please help!

Biology

2 answers:

Marina86 [1]3 years ago

8 0

Answer:

B) Radiometric dating

Explanation:

Radiometric dating: Is a method used to date material such as rocks or fossil by comparing its radioactive isotope material contained in it with the amount of it's decay products. Since the decay occurs at a constant rate Scientists/Geologists are able to obtain it's relative age.

viktelen [127]3 years ago

4 0

Answer: Option B.

Radiometric dating.

Explanation:

Radiometric dating is a technique used by geologists gist to determine the relative age of rock through their decay rate or the decay of their radioactive elements which occur naturally when they are formed.

The radioactive decay is the process where the atomic nucleus that is not stable losses energy through radiation.

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what sentence best supports the statement that hormones are involved in the regulation of homeostasis?

nadya68 [22]

Answer:

Answer optino C.

Explanation:

the hormone erythroprotein increases the production of red blood cells when oxygen levels are low best supports teh statement taht hormones are involved in the regulation of homesstasis.

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3 years ago

____________ is translated by the ribosomes and contains the code that specifies the sequence of amino acids in a polypeptide ch

HACTEHA [7]

mRNA (Messenger RNA) is translated by ribosomes and contains the code that specifies the sequence of amino acids in polypeptide chain.

A single-stranded ribonucleic acid molecule is known as messenger RNA(mRNA) plays a major role in translation.

Translation is the method by which an mRNA codes for a certain protein. mRNA provides the template for protein synthesis.

The ribosome translates the mRNA that is produced from the DNA into a chain of certain amino acids and protein synthesis is facilitated by this amino acid sequence.

The genetic code, which connects the DNA sequence to the amino acid sequence of proteins, is used to "read" the mRNA. Each group of three nucleotides in mRNA forms a codon, and each codon corresponds to a particular amino acid (triplet code).

Thus mRNA contains the code that specifies the sequence of amino acids in a polypeptide chain.

Learn more about different type of RNA here brainly.com/question/21177344

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2 years ago

You just came back from a class in which the topic was egocentrism in the preoperational stage. You have a 4-year-old and though

joja [24]

Answer:

Option B

Explanation:

Question -

You just came back from class in which the topic was egocentrism in the preoperational stage. You have a 4-year-old and thought that you would see if what you learned was accurate. You are sitting directly across from her and ask her to look at the front and back cover of her favorite book. After she did this you asked her to describe "the part of the book I am looking at." What does she tell you?

a) how many pages there are in the book

b) what she sees

c) what you see

d) what the story is about

Solution

As per Piaget's theory of cognitive development, when a child is at the preoperational stage he/she is able to think only at symbolic level and cannot use his/her cognitive thinking.

He/she is unable to derive senses or meaning associated with symbols and also his/her communication is egocentric which means they cannot think from the perspective of other people.

Hence, option B is correct

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3 years ago

Which body of water is found in the east of Costa Rica? a. the Pacific Ocean c. the North Sea b. the Atlantic Ocean d. the Carib

Alja [10]

Costa Rica is surrounded by the Pacific Ocean and the Caribbean Sea. It also borders the Gulf of Nicoya.

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3 years ago

Chemical reactions are like an equation with :

alukav5142 [94]

Answer:

Reactants= Products

Explanation:

Reactants are what are required to start the reaction. Products are the ending result.

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3 years ago