BIOLOGY MIDDLE SCHOOL

What puts pressure on the cell wall to make the plant stand up?A. Cell Nucleus
B. Vacuole
C. Chloroplasts
D. Nucleus

I think its B but im not sure

Answers

Answer 1
Answer: I'm pretty sure it would be B, because it can't be any of the others.

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Which of the following are some examples of rapid environmental changes? A) Succession B) Fires C) Weather D) Landslide​

Answers

Weather is an example of rapid environmental changes.

Explanation:

Environment refers to our natural world surroundings. Rapid means fast or quick. Weather around us keeps changing as the earth rotates and revolves around the sun. It changes depending on the month of the year or may change from day to night. You can also note the room temperature at different times in a day, it keeps changing mostly minorly but it does change. There are sunny, foggy, rainy, cold etc days and hence we can say that weather is example of rapid environmental changes.

Answer:

d

Explanation:

A sperm cell of a moth has 112 chromosomes. how many chromosomes are in the moth's wing cells​

Answers

Answer:

224 chromosomes

Explanation:

The wing has somatic cells which are formed after successive mitotic division forming diploid cells. On the other hand, the formation of gametes involves meiosis which is a type of reduction cell division that forms haploid daughter cells. Somatic cells have the double number of chromosomes in gamete cells therefore the wing cells have 224 chromosomes.

What's the difference between budding and fragmentation?

Answers

budding is when something is becoming larger as part of the process of normal growth. Fragmentation is the process or state of breaking or being broken into small or separate parts.

When genes are shared across two different organisms we refer to this as an event of

Answers

The  answer is; horizontal gene transfer


The other form of gene transfer is the vertical gene transfer where genes are transfers from parents to offspring. Horizontal gene transfer is common in bacteria and is significant in transferring favorable genes such as antibiotic resistance in a bacteria population. An example of this horizontal gene transfer in bacteria is conjugation and transformation.  

two heterozygous white (brown fur is recessive) rabbits are crossed. List the parent genotypes, draw and fill in a punnett square, and list the offspirng genotypes and phenotypes

Answers

Parent's genotypes are Bb and Bb andn the offsprings genotypes after crossing them will be BB, Bb and bb while phenotypes of 3 white rabbits and 1 brown.

What is a punnett square?

The genotypes of a specific cross or breeding experiment are predicted using the Punnett square, a square diagram. It bears Reginald C. Punnett's name, who developed the method in 1905. Biologists use the figure to calculate the likelihood that a child will have a specific genotype.

A person's genotype is made up of all the alleles they have for a certain gene. The sum of a person's attributes or observable characteristics is their phenotype. Unlike phenotype, which is only impacted by genotype, genotype is directly inherited from a person's parents.

Assume B is white, b is recessive brown ; Bb x Bb

    B    b

B  BB  Bb

b  Bb  bb

Genotypes: BB, Bb, bb

Phenotypes: 3 white, 1 brown

Learn more about punnett square, here:

brainly.com/question/25608427

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Assume B is white, b is recessive brown

Bb x Bb

B b
B BB Bb

b Bb bb

Genotypes: BB, Bb, bb
Phenotypes: 3 white, 1 brown

_____ radiation lies at frequencies just below the frequencies of visible light.

Answers

Infrared radiation lies at the frequency just below the frequencies of visible light.

Infrared radiation is termed as an electromagnetic radiation which has longer wavelength more than those which have visible light.
Infrared radiation excites vibrational modes in a molecule through which a change in the dipole moment. Infrared examines transmission and absorption of photons which are in the infrared range. Infrared radiation is used in scientific, military, law enforcement, in industrial, and medical applications.
Infrared radiation lies at the frequencies just blown the frequencies of visible light.
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