A
B
Identify the organelles labeled on the cell to the
right.
A
B
С
D
D
E
E
F
F
DONE

Answer:

i need help with this exact question.

Explanation:

Answer:

A

Explanation:

i have done the test

Answer:

green house gasses

Explanation:

the increase of gasses in the atmosphere has caused the temp. to rise

Answer:

Explanation:

The main reason why the climate is changing because we use a lot of fossil fuel and pollution and cutting down trees and rainforests. Also, this adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming.

Answer:

i think its B. Dont take my word for it tho..

Explanation:

sorry if its wrong :'(

Answer:

mitosis

Explanation:

Explanation:

Biologists use classification to organize living things into groups so that organisms are easier to study. ... Speicies with similar evolutionary histories are classified more closely together.

Answer:

Biologists use classification to organize living things into groups so that organisms are easier to study. ... Speicies with similar evolutionary histories are classified more closely together.

Explanation:

Answer:

Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases.

Explanation:

gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.

Answer:

According to me it's energy bars and fruits, but u can give ur own opinion.

Answer:

Explanation:

Microevolution is a change in the frequency of gene variants, alleles, in a population, typically occurring over a relatively short time period.

Population genetics is the field of biology that studies allele frequencies in populations and how they change over time.

Allele frequency refers to how common an allele is in a population. It is determined by counting how many times the allele appears in the population then dividing by the total number of copies of the gene.

\text{Frequency of allele }AFrequency of allele Astart text, F, r, e, q, u, e, n, c, y, space, o, f, space, a, l, l, e, l, e, space, end text, A ==equals \dfrac{{\text{Number of copies of allele }A \:{\text {in population}}}}{\text{Total number of }{\text{copies of gene in population}}}  

Total number of copies of gene in population

Number of copies of allele Ain population

​  

start fraction, start text, N, u, m, b, e, r, space, o, f, space, c, o, p, i, e, s, space, o, f, space, a, l, l, e, l, e, space, end text, A, start text, i, n, space, p, o, p, u, l, a, t, i, o, n, end text, divided by, start text, T, o, t, a, l, space, n, u, m, b, e, r, space, o, f, space, end text, start text, c, o, p, i, e, s, space, o, f, space, g, e, n, e, space, i, n, space, p, o, p, u, l, a, t, i, o, n, end text, end fraction

The gene pool of a population consists of all the copies of all the genes in that population.

This change in the gene pool most likely indicates the existence of microevolution. It generally includes the implications of various evolutionary forces like migration, genetic drift, mutation, natural selection, etc.

Microevolution may be characterized as a series or sequence of changes that may lead to alterations in the frequency of genes. Due to this, the overall gene pool may get influenced within a particular time.

This methodology and the complete process of alteration in the gene pool with respect to the evolutionary forces are studied under population genetics. It is the field of biology that significantly involves the detailed study of alleles and their frequencies among populations.

According to the context of this question, the gene frequency for a particular trait in a population was determined to be 80% A (dominant allele) and 20% a (recessive allele). Fifty years later, the gene frequency was determined to be 60% A and 40% a. This is due to the microevolution.

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Answer:

Plants do respond differently to different colors of light being shone on them, because chlorophyll reflects green light and absorbs blue and red (therefore, blue and red are useful for photosynthesis, but green isn't).

Explanation:

Answer: 1) The strength of the electromagnet increases   →   Place a magnetic core inside the coil of wire

2) The electromagnet turns off    →    Turn off the battery supply

3) The poles of the electromagnet reverse     →    Change the direction in which the current flows

Explanation:

when current passes through a coil it behaves a an electromagnet.

Magnetic field strength is given by

B = μ N I  

N is no of turns and

I is the current through coil

μ is permeability of the medium or core in the coil.

1). Magnetic core increase permeability μ so it will strengthen magnetic field:

B = μ N I

2). When the battery turns off current becomes zeroi.e I=0

So B = μ N * 0

⇒ B = 0

so electromagnet turns off

3). Direction of magnetic field can be determine by right hand rule, i.e curl the fingers in the direction of current, thumb will point in the direction of north pole.

so changing current direction will change direction of magnetic field.

Proteins, DNA, fats, starch

If you see a lamp that doesn’t look like a lamp to you, but it expands your idea of what a lamp is, then you are experiencing the idea of concept formation (Option D).

The concept formation is a cognitive process in which the info is perceived by the senses and then this data is held in the memory.

In conclusion, if you see a lamp that doesn’t look like a lamp to you, but it expands your idea of what a lamp is, then you are experiencing concept formation (Option D).

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Answer:

1) Moderate increase in light increases the photosynthetic rate

2) Moderate increase in CO2 increases the photosynthetic rate

Explanation:

Photosynthesis is a metabolic process unique to the cells of autotrophic organisms such as green plants. It is the process whereby they synthesize their food in form of sugars (glucose) in the presence of sunlight energy.

The photosynthetic process, although comprises of several reactions and processes, is generally described as the reaction of carbon dioxide, water and light to give glucose and oxygen gas as products. The general equation is as follows:

6CO2 + 6H2O + light → C6H12O6 + 6O2

Since both light (needed to supply energy) and CO2 (carbon source) are reactants of the photosynthetic process, a MODERATE INCREASE in them will INCREASE THE RATE AT WHICH PHOTOSYNTHESIS OCCURS.

Answer:

^^ The answer is below ^^

Explanation:

Water vapor is water in the gaseous phase. Meteorologists have defined several different terms to express the amount of water vapor in air. ... Specific humidity is the ratio of the mass of water vapor in a sample to the total mass of the moist air, including both the dry air and the water vapor.

Meteorologists refer to the water vapour in the atmosphere as moisture or humidity.

The atmosphere is continually being circulated with water. Water evaporating from the surface of the Earth rises into the sky on heated updrafts. When the air is driven by the wind, it condenses into clouds before returning to Earth as rain or snow. This cycle is vital to how heat and energy are moved around our globe from one location to another and from the Earth's surface to the atmosphere.

The most significant greenhouse gas found in the atmosphere is also water vapour. The heat emitted from the surface of the Earth is absorbed by water vapour molecules in the lower atmosphere. In turn, the molecules of water vapour emit heat in all dimensions. The Earth's surface receives some of the heat back. So, in addition to sunshine, water vapour serves as a second source of warming for the Earth's surface.

Therefore, meteorologists refer to the water vapour in the atmosphere as moisture or humidity.

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Answer:

divergent plate boundaries

Explanation:

Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense.

Answer: It depends. Your period might sometimes come some days later or earlier because of stress or another thing. It should be fine if it comes one or two days after the date it is supposed to come, if not, well, you might be pregnant or some health problem that has delayed it.

Answer:

Firstly, many statistics are taken from a small group of people used to represent the general population. Say a news channel reported that 81% of teenagers in America were planning on going to a four-year college. This statistic is most likely taken from a randomly selected group of teenagers, and calculated with a margin of error. Because after all, it's nearly impossible to survey every single teenager in America. This can lead to some statistics that are not really representative of the actual percentage of people. This only gets more likely the larger the general population being "surveyed" is. Another reason is that the media is not always truthful with statistics. Things can be altered and not many people will notice. Hope this helps!

Answer:

yes its important because...

Explanation:

Water is an essential feature of homeostasis in an organism. Water increases the volume of blood, which affects blood pressure and heart rate. Water dissolves gases and allow for efficient exchange and transport of oxygen and carbon dioxide. Water can be excreted, so it carries toxins that have been made water-soluble out of the body.

Answer:

The answer is identical.

Explanation:

Mitosis is a nuclear division giving rise to a genetically identical cells.

Answer:

identical

Explanation:

mitosis forms daughter cells, the copy of identical chromosomes

Answer:

They're Multiplying

Explanation:

Im ony GUESSING here but it looks like they are multiplying

Answer:

the part which allows the pollen is the stigma

Answer:

Okrtyuiop[poiuytfdfghjkl;lkjhgfcvbnm,

Explanation:

Answer:umm.....

Explanation:

Answer:

oxygen

Explanation:

Answer:

ok

Explanation:tahy all were like why

The correct answer is C.) The repressor protein has fallen off the molecule.

The lac operon is a regulatory system found in bacteria, which controls the expression of genes involved in lactose metabolism.

The lac operon consists of three main components: the structural genes (lacZ, lacY, and lacA), the promoter region, and the operator region. The regulation of the lac operon depends on the presence or absence of lactose and glucose.

In the absence of lactose, the lac repressor protein binds to the operator region of the operon, preventing the expression of the structural genes. This inhibits the production of enzymes involved in lactose metabolism.

However, when lactose is present in the environment, it acts as an inducer. Lactose is converted into allolactose, which binds to the repressor protein and causes it to undergo a conformational change. As a result, the repressor protein falls off the operator, allowing RNA polymerase to bind to the promoter region and transcribe the structural genes.

Therefore, the clue that the lac operon is on is the falling off of the repressor protein from the operator region, enabling gene expression and the production of enzymes required for lactose metabolism. Therefore, the correct answer is C.

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