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4 years ago

9

What are the scientists doing incorrectly? What could they do to make their work in the lab safer? Why is it important to follow

these procedures? Part A

1 answer:

olasank [31]4 years ago

6 0

Answer:

I could be wrong but it seems as if the instructions are in the trash can.

Explanation:

The scientist could make their work in the lab safe by reading the instructions instead of throwing them away.

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the earth requires 24 hours for one rotation. so in 24 hours how many longtitudes will face the sun?

worty [1.4K]

Answer:

<u>The sun would observe 15 degrees of earth's longitude.</u>

4 0

3 years ago

german

Answer:

$\boxed {\boxed {\sf A. \ Synthesize \ proteins}}$

Explanation:

The ribosomes are small organelles made of RNA and proteins. Its function is the same in both prokaryotic and eukrayotic cells: <u>protein synthesis. </u>

The process begins in the nucleus. The DNA and genetic information is housed here. Certain sections are transcribed and copied to make messenger mRNAs that can fit through the nucleus and pores to travel out to the ribosomes.

The ribosomes use the mRNA in a process called translation. They match each set of 3 nucleotides (a codon) in the mRNA to 1of 20 different amino acids. A special sequence of amino acids forms, the molecule folds, and a protein is formed.

So, a ribosome is the main site for protein synthesis and the correct choice is A.

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3 years ago

Why isn't 100% of energy passed from one trophic level to the next

nadya68 [22]

Answer:

Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when organisms from one trophic level are consumed by organisms of the next level. More specifically, 90% of metabolic energy is used, so only 10% will be passed down to the next level.

5 0

3 years ago

Read 2 more answers

The change in mhr is the same from ages 20 to 26 as it is from ages 40 to 46

Fantom [35]

The change of maximum heart rate (MHR) is the same from ages 20 to 26. At age 20, a person has an MHR of 200 bpm and at the age of 26, a person has an MHR of 194 bpm, there's a 4 bpm difference. While at the age of 40, a person has an MHR of 185 bpm and at the age of 46, a person has an MHR of 182 bpm, there's a difference 4 bpm. Therefore, the change in MHR for the same range (20-26) and (40-46) are the same.

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3 years ago

Which of the following statements is FALSE about genes and chromosomes

deff fn [24]

The false answer is B because to be exact, the two copies of a gene carried by an organism (such as a Y and a y allele) are located at the same spot on the two chromosomes of a homologous pair. Homologous chromosomes are similar but non-identical, and an organism gets one member of the pair from each of its two parents.

6 0

3 years ago