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12345 [234]
2 years ago
9

In a recent survey of students who graduated from a large public high school, nine out of ten students reported that they passed

biology with a grade of seventy-five percent or higher. What further data could be produced to be sure that this information is accurate?
Biology
1 answer:
Strike441 [17]2 years ago
4 0
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What are roles of producers, consumers, and decomposers in an ecosystem​
Daniel [21]
An organism that obtains energy and nutrients by feeding on other organisms or their remains. A food web is a model of the feeding relationships between many different consumers and producers in an ecosystem. Without plants (the primary producers) consumers and decomposers would not be able to live. Producers always start every food chain. A consumer, also called a heterotroph, is an organism that cannot make its own food. It must eat producers or other organisms for energy.
5 0
3 years ago
Which of the following molecules is not required for a PCR reaction? View Available Hint(s) Which of the following molecules is
natita [175]

Answer:

A Ligase

B False

C To separate the double‑stranded DNA

Explanation:

The Polymerase Chain Reaction (PCR) is a technique widely used in molecular biology laboratories in order to make millions of copies of a specific sequence of DNA. PCR requires deoxynucleotide triphosphates (dNTPs) to synthesize new copies of the target DNA fragment, a thermostable DNA polymerase that adds nucleotides to new DNA strands, and primers that attach to complementary ends at each DNA strand. PCR has three phases: 1-Denaturation, where the double-stranded DNA molecule is heated to separate it into two single (separated) strands; 2-annealing, where the temperature is lowered in order to allow the primers to attach each DNA strand, and 3- extension, where the temperature is increased (again), and the thermostable DNA polymerase adds the appropriate dNTPs to new DNA strands. In consequence, annealing occurs at the lowest temperature. Moreover, during the denaturation stage, the temperature is increased at 90–95°C  in order to denature the DNA strands into single strands.

5 0
3 years ago
What’s the sun and Estimate to 5/10+4/9?
Nata [24]

Answer:

The answer is 17/18

Explanation:

Please take a look at the attached picture for the explanation.

3 0
3 years ago
Do animal cells have a large vacuoles?
Vladimir [108]

Answer:

no thwy dont have vacoules

Explanation:

8 0
3 years ago
Read 2 more answers
Helppp I will marke u as brainlest .
Mademuasel [1]
1. Contraction of the iliacus and psoas major produces flexion of the hip joint

2. quadriceps femoris muscle group

3. A combination of gluteal and thigh muscles also adduct, abduct, and rotate the thigh and lower leg. The tensor fascia latae is a thick, squarish muscle in the superior aspect of the lateral thigh. It acts as a synergist of the gluteus medius and iliopsoas in flexing and abducting the thigh.

4. triceps brachii

5. The major muscle that laterally flexes and rotates the head is the sternocleidomastoid

6. Rectus abdominis

7. The external obliques are the outermost abdominal muscles. They are also key participants in spinal flexion and the compression of the viscera. Individually, they act alongside the internal obliques in lateral flexion and spinal rotation.

8. abdominal external oblique muscle

9. external intercostal muscles
8 0
3 years ago
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