Answer:
Pangaea
Explanation:
need answer ASAP!!
What is the function of the chloroplasts?
Answer:
Organelles called chloroplasts allow plants to capture the energy of the Sun in energy-
Explanation:
Answer:
Allows the plant to capture energy from the sun.
Explanation:
extra fact, they are organelles.
What is the main reason why the climate is changing?
(I NEED THIS ASAP)
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.
Toby and his brother Jedidiah are eating burgers. All of a
sudden, Jedidiah begins to gasp for air, grabs his neck, and
starts turning blue in the face. What can Toby do to help
Jedidiah?
A.perform CPR
B. give him an inhaler
C. perform the heimlich maneuver
D.nothing, it will pass
Natural selection disrupts the _______ because one allele of a gene is preferred over another, changing the allele frequencies over time.
genetic drift
Explanation:
Genetic drift is changes in allele frequencies of a gene pool due to chance or random events. This can occur in large or small populations. Genetic drift causes gene pools of two isolated populations to become dissimilar as some alleles are lost and other are fixed.
What are two activities that might increase your rate of respiration?
Explanation:
walking
running. As your body is in motion, your oxygen needs are greater. The faster the heartbeat, the more O2 is needed for muscle movement.
That is if your speaking of activity and not cellular respiration...???
Why do scientists organize living things into groups?
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:
two____ cells are created through mitosis. 100 POINTS!!!
0 sperm
0 identical
0 different
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
What is a clue that the lac operon is on?
A.)Lactose is absent.
B.)The cell membrane changes.
C.)The repressor protein has fallen off the molecule.
D.)RNA polymerase is blocked by the repressor.
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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Which part of the flower accepts the pollen
Answer:
the part which allows the pollen is the stigma
In order to maintain a high level of performance, what types of foods do you think an athlete should eat right before a race? Select one.
Answer:
According to me it's energy bars and fruits, but u can give ur own opinion.
Again, imagine that your liver, which has a volume of 2 liters, developed from a single embryonic precursor cell with a volume of 1000 μm3, or 1 x 10-12 liters. You previously calculated how many cell division cycles would be required for the precursor cell to produce your mature liver.
What if the control of liver organogenesis were a bit faulty, and the process went exactly 2 cell division cycles beyond this? What then would be the volume of your liver in liters?
I found that the answer to the first question is 41, but I can't figure out the second part.
Answer:
41 cycles
If cell division went 2 cell division cycle beyond the precursor; we have 43 cycles
The volume would be = 17.59 Litres
Explanation:
From the given information:
The number of cells in the liver that developed from an embryonic precursor is roughly [tex]\dfrac{2}{10^{-12}}= 2\times10^{12}[/tex]
The number of cell cycles needed to produce [tex]2\times 10^{12[/tex] cells is:
= [tex]log_2(2\times 10^{12})[/tex]
= 40.86
[tex]\simeq[/tex] 41
Thus, nearly 41 cycles of cell division are required to form the mature liver.
Now;
Suppose 2 extra cell division cycles took place;
The total number of cells would be 2⁴³ = 1.759 × 10¹³; &
The volume would be = 1.759 × 10¹³ × 10⁻¹²
The volume would be = 17.59 Litres
Explain how a moderate
increase in (1) light and (2) carbon dioxide could
affect photosynthesis in a desert plant. Address
both conditions for full credit.
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.
Is water and its properties important in homeostasis for humans ? explain.
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.
At which ocean-floor feature do plates move together?
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.
Photosynthesis results in *
An oxygen-rich atmosphere
Glucose, a food for plants
Glucose, the source of energy for all living things on earth
All of the above
What will happen to the rate of photosynthesis, if the temperature is

If you see a lamp that doesn’t look like a lamp to you, but it expands your idea of what a lamp is, you are experiencing:
A) image formation
B) mental concepts
C) concept expansion
D) concept formation
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).
What is the concept formation?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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please help me plz :(
Answer:
They're Multiplying
Explanation:
Im ony GUESSING here but it looks like they are multiplying
Weathering is _______.
a.
caused by the movement of materials over rocks
b.
not a natural process
c.
a process whereby rocks are broken down by direct contact with the atmosphere
d.
all of the above
Answer:
C. a process whereby rocks are broken down by direct contact with the atmosphere
Explanation:
EDGE2021
Why do different colors affect photosynthesis differently
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:
Cells that are carrying out normal day to day fuctions are in which phase of the cell cycle?
Answer Choices
A .Cytokinesis
B. Mitosis
C. Interphase
Answer:
i think its B. Dont take my word for it tho..
Explanation:
sorry if its wrong :'(
Answer:
mitosis
Explanation:
WILL MARK BRAINLIEST WORTH 20 POINTS
Which of the following limit cell size? Select all of the answers that apply.
A. ratio of surface area to volume
B. rate of moving materials across the cell's membrane
C. efficiency of using the information in a cell's DNA
D. efficiency of DNA replication and cell division
Answer:
Okrtyuiop[poiuytfdfghjkl;lkjhgfcvbnm,
Explanation:
Meteorologists refer to the water vapor in the atmosphere as
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.
What are water vapours?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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what are the two product of the krebs cycle
A 75 kg patient needs a medication X in the amount of 0.2 mg/kg/day. The medication comes in a liquid solution of 50 mg for every 1000 ml. How many ml of this solution will this patient need in a day? If this solution is being infused at 60 ml/hr, how long with the transfusion take?
Answer:umm.....
Explanation:
Explain the role the ocean plays in the carbon cycle (think about the physical and biological processes that occur in the ocean)
Answer:
i need help with this exact question.
Explanation:
which component of photosynthesis is a form of energy not matter?
A. water
b. carbon dioxide
c.sunlight
d.oxygen
Answer:
oxygen
Explanation:
which group contains only molecules that are each assembled from smaller organic compounds
Proteins, DNA, fats, starch
Gross production is the amount of energy left after cellular respiration. Please select the best answer from the choices provided T or F
Answer:
FALSE
Explanation:
Gross production is the amount of energy left after cellular respiration that is false, as the gross production is the total production and the net production is the amount of energy left after cellular respiration.
What is the significance of the gross production?Gross production is the total amount of energy produced by an organism through different processes, such as photosynthesis, ingestion, and digestion of food, while after energy is used by the organism for cellular respiration, what is left is called the "net production." Although the gross energy is not released, the net energy is.
Hence, gross production is the amount of energy left after cellular respiration that is false, as the gross production is the total production and the net production is the amount of energy left after cellular respiration.
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How are solids, liquids, and gases different?
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.
What's a quote in the poem "two kinds" that encouraging