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torisob [31]
3 years ago
8

Please can anyone help me with my science work

Biology
1 answer:
dexar [7]3 years ago
3 0

the heading underlined in blue gives answers to the last part

the part above the underlined heading and the first part on the first page help with the first qn (structure of dna)

am not sure about the second qn:(

but hope that helps

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What is the answer ?
bogdanovich [222]
1. MUSCLE TISSUE : allows the heart to contract
2. CONNECTIVE TISSUE : insulates the body
3. EPITHELIAL TISSUE : forms the outer, most protective layer of the body
4. NERVOUS TISSUE : allows the brain to respond to stimuli. Others include sensory input, integration, control of muscles and gland, homeostasis, & mental activity.

(I answered another question just like this two minutes ago, not sure if it was the same person :)
7 0
3 years ago
A generic protein that is 387 amino acid residues long will have a molecular weight (daltons) _______.
Lesechka [4]
The answer is approximately 42.57 kDa. The average weight of an amino acid is 110 Daltons. Therefore, a generic amino acid of 387 amino acids will have 110 *387 = 42570 Daltons. 1000 Daltons is equal to 1 kDal. Therefore 42570/1000 = 42.57 kDa
4 0
3 years ago
Which parts of an ecosystem perform cellular respiration? Which one is the right one : producers , primary consumers, secondary
Oduvanchick [21]

Answer: cellular respiration happens in the mitochondria and cytoplasm of cells.

Explanation: many organisms, including plants and plankton, per- form oxygen-dependent cellular respiration.

7 0
3 years ago
A group of students tested to see if the acidity of water affected pea plant growth
Anit [1.1K]

Answer:

I would say C because in number one, the tests were never repeated

Explanation:

do you mean

this question??

Experiment 1: A group of students tested to see if the acidity of water affected pea plant growth. The students followed a logical method and performed their experiment once, using control and experimental groups. Their results supported their hypothesis.

Experiment 2: A group of students tested to see if bacteria growth in water was affected by acidity. The students used control and experimental groups. They repeated their experiment several times and found the results were the same.

Which experiment most likely has greater reliability?

A. Number 1 because it follows a logical method

B. Number 2 because the experiment was repeated

C. Number 2 because the experiment was repeated and the results were always the same

D. Number 1 because it has control groups

4 0
3 years ago
1. Based on the graph, make an inference about where the "community acquired" penicillin resistant S. aureus originated from.
antoniya [11.8K]

The "community acquired" penicillin resistant S. aureus originated from the hospital since 1940’s based on the graph and after 10 years, S. aureus resistant increases to 60%. In 1960’s, it spread to the community and eventually spread across the world.

Moreover, Staphylococcus<span> aureus infections <span>can be treated with penicillin in the past but when it became resistant to penicillin, pharmaceutical companies discovered methicillin, which is a derivative of penicillin. However, </span>S. aureus resistant was also develop with methicillin from late 1980’s in the hospital and in the community from the start of year 2000.</span>

 

8 0
4 years ago
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