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dalvyx [7]
3 years ago
15

The students are performing an experience that involves chemicals.

Biology
2 answers:
n200080 [17]3 years ago
4 0

Answer:

your answer will be D. wearing approiate labotary attire

Explanation:

The student clearly has no gloves on may hurt themselves doing the lab teacher should've had told the kids the rules and what to expect and what to do

Novosadov [1.4K]3 years ago
4 0

Answer:

The correct answer will be option-D.

Explanation:

A scientific experiment involving chemicals must be performed with precautions as chemicals can cause serious health problems like carcinogens causing cancer.

The laboratory attire of a lab includes a face mask to cover mouth, a pair of goggle to protect eyes, hand gloves to protect hand and a laboratory coat to protect body and clothes.

Since in the given question, the hand gloves and laboratory coat are missing, therefore, option-D will be considered the most valid answer.

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Plants make energy. Some of it they use to perform the necessary functions of living. What do they do with any excess energy?
NNADVOKAT [17]

Answer:

A) They release the excess energy as heat.

Explanation:

when plants absorb more energy than they use it can damage critical protein. to prevent this plants turn the excess energy into heat and send it back out.

6 0
3 years ago
Someone please calculate the ratio of offspring please help pleaseeeeeeeeeeeeeeee
Over [174]

Answer:

2. 1 Pink : 1 white

3. 1 Red : 1 Pink

4. 1 Red : 2 Pink : 1 White

Explanation:

This question involves a single gene coding for flower colour in snapdragon plants. The alleles of the gene exhibits incomplete dominance i.e. the red allele (R) ia not completely dominant over the white allele (W), hence an intermediate pink phenotype (RW) is formed. Based on this, a red snapdragon will have genotype, CRCR while a white one will have genotype, CWCW. The intermediate pink phenotype will have a genotype, CRCW.

The image attached to this question shows four crosses between different traits.

In the second cross between a pink (CRCW) and white offspring (CWCW), 2pink and 2white offsprings will be possibly produced in the ratio 1:1.

In the third cross between a red (CRCR) and pink (CRCW) snapdragon, 2 red and 2 Pink offsprings will possibly be produced in a ratio 1:1.

In the fourth cross between a pink (CRCW) and pink (CRCW) snapdragon, red, pink and white offsprings will be produced in the ratio 1:2:1.

See attached image for the complete punnet square. Note that, there was a mistake in the Genotype of the last cross i.e. pink has genotype CRCW not CWCW.

5 0
3 years ago
35 POINTS - 3 QUESTIONS
Trava [24]
(A) The structure is the cell wall. The cell wall protects the cell from damage. It is also there to make the cell strong, to keep its shape.

(B) Structure Z is a chloroplast. Chloroplasts work to convert light energy of the Sun and turn it in to sugars that can be used by the cells. This process is also called photosynthesis.

(C) Since chloroplasts create sugar for a plant cell, fungi has mitochondria. Fungi uses mitochondria which create ATP (also know as Adenosine Triphosphate) which is energy. Therefore, fungi doesn’t need chloroplasts.
4 0
3 years ago
Read 2 more answers
Particulates can be removed from smokeslack emissions by which of the following methods?
devlian [24]
Install an electrostatic precipitator (ESP) component, which is a particle control system that helps remove particles from a smokestack by using electrical charges. According to the U.S. Environmental Protection Agency, an ESP can remove small particles with up to 99 percent efficiency.
4 0
2 years ago
Search the Internet for ongoing research projects about food safety and sanitation. Consult governmental or education sites for
jasenka [17]

Answer:

WRRRRRRY

Explanation:

6 0
3 years ago
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