BIOLOGY HIGH SCHOOL

How long does a lunar eclipse last?

Months
Minutes
Days
Weeks

Answers

Answer 1
Answer: A lunar eclipse can last for a couple of hours and some minutes

Related Questions

If the rate of photosynthesis significantly increased, which of the following would happen?
Some viruses consist only of a protein coat surrounding a nucleic acid core. If you wanted to radioactively label the nucleic acids separately from the protein, you would use radioactive ________.
Photosynthesis is important to living organisms because it is
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Energy from the sun comes from fusion. What happens during that reaction? Question 28 options: A.Hydrogen turns into helium. B.Helium turns into hydrogen. C. Oxygen turns into carbon dioxide. D.Carbon dioxide turns into oxygen

Crossing over and the separation of duplicated homologous chromosomes in the first division produce genetic variation. true false User: The nuclear envelope disintegrates during _____.
metaphase
prophase
anaphase
telophase

Answers

Question 1. The statement that 'Crossing over and the separation of duplicated homologous chromosomes in the first division produce genetic variation' is true. Crossing over is the exchange of genetic material between homologous chromosomes that occurs during meiosis. As the result, the daughter cells are genetically different from mother cells. It is one of the ways to produce genetic variation. Question 2. The nuclear envelope disintegrates during prophase. This is the process that occurs at the beginning of mitosis. During prophase, the first phase of mitosis, the chromosomes condense and the nuclear envelope disintegrates. At the end of mitosis, the chromosomes will decondense and the nuclear envelope will re-form.
Prophase is the answer

Which of the following organelles assembles proteins? ribosomes Golgi apparatus nuclear envelope or endoplasmic reticulum

Answers

The right answer is Ribosomes

The ribosome is a complex composed of RNA and ribosomal proteins, associated with a membrane (in the granular endoplasmic reticulum) or free in the cytoplasm. Common to all cells (prokaryotes and eukaryotes), the ribosome (and especially its composition) varies according to the organisms, even if it is always composed of two distinct subunits.

The ribosome is a huge ribonucleoprotein complex that allows the translation of mRNAs into proteins.

Final answer:

The organelle responsible for protein assembly is the ribosome. It exists either freely in the cytoplasm or attached to the rough endoplasmic reticulum, which also plays a role in protein modification. The Golgi apparatus further modifies and packages proteins, while the nuclear envelope regulates flow of substances.

Explanation:

Out of the organelles you listed: ribosomes, the Golgi apparatus, the nuclear envelope and the endoplasmic reticulum, it is the ribosomes that are responsible for protein synthesis. Ribosomes can either be found freely in the cell cytoplasm or attached to the endoplasmic reticulum (ER), forming what is known as the rough endoplasmic reticulum (RER). The ER, specifically the RER, plays a role in further modification of proteins. Meanwhile, the Golgi apparatus is involved in further protein modification and packaging, and the nuclear envelope acts as a barrier between the nucleus and the cytoplasm, controlling the flow of substances in and out of the nucleus.

Learn more about Protein synthesis here:

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How Does The number of chromosomes found in the two daughter cells compare to the number of chromosomes found in the mother cells?

Answers

The parent cell will create daughter cells with the same number of chromosomes as it has -- through mitosis. 
The parent cell will create cells that are haploid, half the number of chromosomes of the parent -- through meiosis.

In figure 12-5, what is adding base pairs to the strand

Answers

the answer is DNA polymerase

C. DNA Polymerase.

Because its the enzyme that joins individual nucleotides to produce a new strand of DNA.

A train accelerates at a rate of 2.5 km/hr/sec. During the acceleration period, its velocity changes by 55 km/hr. Choose the exact time of the train's acceleration.A. 1,200 s

B. 22 hr

C. 22 s

D. 0.045 s

Answers

Using the formula :
v = u + at
a = accelaration = 2.5 km/hour^2
v = final velocity = 55 km / hour
u = initial velocity (in this case u=0)
t = time

hence,
v = 0 + at
v = at
55 km /hour = 2.5 km/hour^2 * t
t = 55 km /hour / 2.5 km/hour^2 
t = 22 hours

Answer:

22 hr

Explanation:

Hope this helped its different for everyone what was it for u it was A for me

Which of the following structures is only a part of the male reproductive systems in humans?A. Uterus
B. Seminiferous tubules
C. Cervix
D. Urethra

Answers

I think it's b because it isn't where sperm is created and obviously women don't have that
Other Questions
What distinguishes the immature stage from the mature stage of a grasshopper?a. sizeb. having an exoskeletonc. building a cocoond. providing for themselves
Cellular respiration occurs within the _________ of a cell.nucleus vacuoles cytoplasm mitochondrion
Smoking and severe sunburn are linked to cancer genetic disease infectious disease food poisoning
A normal appearing couple is found to be heterozygous recessive for albinism. Both have the genotype Aa. The gene responsible for albinism is recessive to the normal pigment-producing gene. What are the chances of their children being albino?