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earnstyle [38]
3 years ago
14

Chemicals that lower the energy need to start a chemical reaction are called

Biology
2 answers:
Ronch [10]3 years ago
5 0

Answer:

enzymes

Explanation:

lower the level of energy that needs to be invested in a chemical reaction. A chemical reaction's activation energy is the “threshold” level of energy needed to break the bonds in the reactants.

Zolol [24]3 years ago
3 0

Answer:

catalysts

Explanation:

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What is the appearance of a characteristic called
Vlad [161]

Answer:

The term "phenotype" refers to the observable physical properties of an organism; these include the organism's appearance, development, and behavior. An organism's phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.

Explanation: Your Not Smart I AM

4 0
3 years ago
What are some of the possible consequences of mutations
ankoles [38]

Answer:

Following are some of the possible consequences of mutations:  

1. Some of the mutations take place in proteins that play an essential role in the function of cells, and thus, the cell dies.  

2. Some mutations result in the origination of new traits like red hair.  

3. Some mutations take place in genes, which monitor the division of cell and thus cells start to divide out of control, resulting in cancer.  

4. Some of the mutations may be beneficial and may offer some benefit to the organism in some of the environments. These advantageous mutations may be encouraged by natural selection and are the basis for the evolution of life on Earth.  

6 0
3 years ago
Whales, humans, lizards, and birds each have forelimbs that are adapted for different functions, including swimming, using tools
Elis [28]

Answer:

A. These homologous structures indicate that these four organisms all share a common ancestor.

Explanation:

Homologous structures mean the organs will have similar structure, but not necessarily function (human arm vs whale's flipper). While analogous structures are similar in function but not structure (wings of an airplane vs wings of a bird). Since the question states that they are similar in skeletal structure, we know they must be homologous structures, thereby eliminating B and C. D is not a choice because the question does not provide anything about the order of evolution. Therefore the answer is A. These homologous structures indicate that these four organisms all share a common ancestor.

7 0
3 years ago
What type of relationship exist between the common teasel and all of the other plants?
g100num [7]

Answer:

correct me if im worng but i think is Dipsacaceae

Explanation:

8 0
3 years ago
Match each of the following terms
abruzzese [7]

Answer:

The correct match for the terms with their description is given below:  

Explanation:

  • Gene: f)  A sequence of nucleotides in DNA that codes for a functional product such as a protein.
  • Nucleotide: d) The building blocks of nucleic acids, includes a phosphate, sugar and organic base.
  • Chromosome: e) The structure that carries the DNA sequences
  • Frameshift mutation a) The loss or addition of a nucleotide pair in a DNA strand.
  • Point mutation: c) The substitution of one nucleotide pair for another in DNA strand.
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  • Phenotype: b) The physical and biochemical expression of the genotype.

7 0
3 years ago
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