Which of the following insect development stages is not the same as the other three?
cocoon
caterpillar
grub
maggot
cocoon is the correct answer
Answer:
cocoonExplanation:
Mosquito repellent is sprayed on one arm and the other arm is not sprayed. The number of mosquito bites is counted after 2 hours. what is the control,independent variable, dependent variable of this sentence.
In this experiment the dependent variable is the number of mosquito bites, the independent variable is the type of repellent the control group is the population that is not sprayed.
What is the dependent variable?The dependent variable is those that changes in the experiment, while the independent variable is not modified along the experimental procedure. Moreover, the control group is the sample in which the treatment isn't applied.
In conclusion, in this experiment the dependent variable is the number of mosquito bites, the independent variable is the type of repellent the control group is the population that is not sprayed.
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The formula CaCl, represents the compound
Answer:
It represents the compound calcium chloride
Explanation:
What kind of bonds are found between carbon atoms of the fatty acid tails in saturated lipids?
Pls help me
A fatty acid with no carbon-carbon double bonds; usually from animal sources and solid at room temperature.
A fatty acid with no carbon-carbon double bonds; usually from animal sources and solid at room temperature is a saturated fatty acid.
What are saturated fatty acids?A saturated fatty acid is a special type of fatty acid composed of a carbon chain that does not exhibit any double bonds, which is well known to reduce fluidity.
In conclusion, a fatty acid with no carbon-carbon double bonds; usually from animal sources and solid at room temperature is a saturated fatty acid.
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Explain how the structure of a mature sieve element is related to its function?
Answer:
.
Explanation:
.......................
What do the function and structure of the forelimbs of the 4 animals tell us
about their evolutionary history?
Answer: biomarker: A substance used as an indicator of a biological state, most commonly disease.
trace fossil: A type of fossil reflecting the reworking of sediments and hard substrates by organisms including structures like burrows, trails, and impressions.
fossil record: All discovered and undiscovered fossils and their placement in rock formations and sedimentary layers.
strata: Layers of sedimentary rock.
fossiliferous: Containing fossils.
Explanation: hope this is what you mean if not ill try again
What is the main function of environmental policy?
a.
prevent the use of natural resources
b.
reduce human impact on the environment
c.
prevent nature from having a harmful effect on humans
d.
reduce the use of natural resources
Please select the best answer from the choices provided
A
B
C
D
Answer:
reduce impact on the environment
The main function of environmental policy is to reduce human impact on the environment. So the correct answer is B.
environmental policy is any action taken by a government, business, or other public or private organization to address the impacts of human activity on the environment, particularly those that aim to mitigate or prevent negative effects on ecosystems.
It is our approach to look for consistent improvement all through our business tasks to reduce our effect on the neighborhood and worldwide climate by saving energy, water and other normal assets; reducing the production of waste; repurposing and; minimizing our use of hazardous materials.
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What are the primary processes that increase genetic variability?
A. sexual reproduction and mutations
B. cloning and binary fission
C. asexual reproduction and mitosis
D. budding and recombination
Answer:
A
Explanation:
Please help thank you :)
Answer:
i think it is a
Explanation:
What do aerobic respiration and anaerobic respiration have in common?
O Both begin with glycolysis.
Both occur in mitochondria.
O Both require oxygen to proceed.
O Both end with the electron transport chain.
Answer:
A. Both begin with glycolysis
Correct on 2020 Engenuity
-They had it first so credit to them.
Answer:
a
Explanation:
Smokers are ___ times more likely to die from ___ than non-smokers
Answer:
There are 2 possibilites.
Explanation:
1. 17, bronchitis and emphysema
2. 23, cancer of trachea/lung and bronchus
mention any two points that should be remembered for regular check up
It is believed that weed killers like 2,4-D and 2,4,5-T may
work by stimulating cell division. Why would the stimulation
of cell division make these chemicals effective weed killers?
Herbicides are a broad category of pesticides that are used to get rid of undesirable plants like weeds and grasses that hinder the development and productivity of desired agricultural crops. Both 2,4-D and 2,4,5T are also known as 2,4-Dichlorophenoxyacetic acid and
Herbicides like 2,4-D and 2,4,5-T are also referred to as auxin-type herbicides or plant growth regulators. Auxins are hormones that affect cell division and elongation in order to control cell growth.Auxins are required by plant cells in the proper concentration for growth and development. If auxin levels are too low, plant growth is not promoted at all, and if levels are too high, plant growth is excessively stimulated. Most grasses are not killed by 2,4-D and 2,4,5 T, but broadleaf weeds are. It moves to the plant's meristems after being absorbed through the leaves. These herbicides affect the tissues' cells, causing them to continually divide and proliferate. The plant finally dies as a result of this unchecked, unsustainable growth, which also causes stem curling and withering of the leaves.Thus, by promoting cell division, these compounds act as herbicides.
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What muscle contracts and relaxes when you inhale and exhale?
a. tricep
b. lung
c. diaphragm
d. bicep
Answer:
c.
Explanation:
diaphragm contracts and relaxes. you may try it now at the very moment lol
How do trees improve water quality?
a.
Tree roots anchor soil in place, preventing runoff.
b.
Water is filtered as it passes through the root systems of trees.
c.
An adult tree can store nearly 250 gallons of water.
d.
All of the above
Please select the best answer from the choices provided
A
B
C
D
Answer/Explanation:
D
Trees improve water quality by slowing rain as it falls to the Earth, and helping it soak into the soil. ... Having a buffer of forestland by streams and riverbanks does more than just filtering the water.
Answer:
b. Water is filtered as it passes through the root systems of trees.
Explanation:
on edge
Generally speaking, identify the overall structure
of the cell membrane?
100 POINTS!
Which of the following terms in Biology is best illustrated by the image below?
A. Selective Permeability
B. Independent Assortment
C. Fluid Mosaic Model
D. Facilitated Diffusion
Answer:
The answer is Selective permeability
Explanation:
Answer:
Selective Permeability
Explanation:
Describe how temperature and salinity affect the solubility of gases in the surface ocean
Answer:
The solubility of gases such as oxygen and nitrogen depends upon the ocean water's temperature and salinity. As the temperature of the ocean water increases, the solubility of these gases decreases. The solubility of carbon dioxide is greater than the other gases because of its ability to react with ocean water.
URGENT PLEASE
Which of the following illnesses is caused by a virus?
common colds
diabetes
strep throat
malaria
HELP DUE AT 4! THIS DEPENDS ON MY GRADE okay here is the model now I need help w the question: How many males in this model show the trait? A. One B. Seven C. Three D. Four
Answer:
C. Three
Explanation:
Place the following molecules in order starting from the smallest
The molecules that are given below from the smallest to the lowest will be glucose, protein, disaccharides, and starch.
A molecule simply refers to the smallest particle that can be found in a chemical element. It should be noted that the molecule has the chemical elements exactly as the elements or compounds.Molecules consist of one or more atoms. Examples of molecules include CaO (calcium oxide), NaCl (table salt), From the options given, it should be noted that the nanometer of glucose is the smallest when it's compared to others. Starch has the largest nanometer. A nanometer is a unit of measurement.In conclusion, the correct option from the smallest will be glucose, protein, disaccharides, and starch.
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Organs work together as components of
Answer: Organs are grouped into organ systems, in which they work together to carry out a particular function for the organism. For example, the heart and the blood vessels make up the cardiovascular system.
Plsss help I will give brainlest Section 1 - Question 19
Diploid plants have two sets of chromosomes. Polyploid plants have more than two sets of chromosomes, are often targer, and have more desirable characteristics. To create polyploid plants, plant breeders can
treat diploid plants with a chemical that prevents the separation of sister chromatids during mitosis. Resulting cells that have any partial chromosome sets, even if in addition to one or more complete chromosome
sets typically do not survive this process
It a diploid plant ce treated with such a chemical goes through a single round of mitosis, what is the MOST LIKELY genetic composition of the resulting cells that survive?
А
These cells will be haploid, each having one complete set of chromosomes.
B
These cells will be triploid, each having three complete sets of chromosomes.
С
These cells will be tetraploid, each having four complete sets of chromosomes
These cells will be octaploid, each having eight complete sets of chromosomes.
To produce a tetraploid plant, the alkaloid colchicine is applied to the terminal bud of a branch. All the cells in the developing branch will be tetraploid (4n) with four sets of chromosomes. This includes cells of the stem, leaves, flowers and fruit. Gametes (egg and sperm) produced by a flower on this tetraploid branch will be diploid (2n) with two sets of chromosomes. A flower on the normal diploid (2n) branch will produce haploid (n) gametes containing one set of chromosomes.
Stages of mitosis in the formation of tetraploid cells. The original mother cell is diploid (2n). During anaphase the chromatids separate and move to opposite ends of the cell. Colchicine causes the dissolution (depolymerization) of protein microtubules which make up the mitotic spindle in dividing cells. This leaves the cell with twice as many single chromosomes (four sets rather than two). When this cell divides, each of the two daughter cells will have fours sets of chromosomes, a total of eight chomosomes per cell. [Note: Spindle poisons such as colchicine are used to prevent tumor cells from dividing in certain chemotherapy treatments.]
The botanical term parthenocarpy refers to the development of the ovary of a flower into a fruit without fertilization. [The biological term parthenogenesis refers to the development of an egg without fertilization.] Fruits that develop parthenocarpically are typically seedless. Some seedless fruits come from sterile triploid plants, with three sets of chromosomes rather than two. The triploid seeds are obtained by crossing a fertile tetraploid (4n) plant with a diploid (2n) plant. When you buy seedless watermelon seeds, you get two kinds of seeds, one for the fertile diploid plant and one for the sterile triploid. The triploid seeds are larger, and both types of seeds are planted in the same vicinity. Male flowers of the diploid plant provide the pollen which pollinates (but does not fertilize) the sterile triploid plant. The act of pollination induces fruit development without fertilization, thus the triploid watermelon fruits develop parthenocarpically and are seedless. Most bananas purchased at your local supermarket came from sterile triploid hybrids. The fruits developed parthenocarpically and are seedless.
B
PLEASE HELP!!! Which capability do scientists think evolved as a result of the separation of
interior spaces from exterior spaces in protobionts?
A. The ability to carry out unique chemical reactions
B. The ability to separate different functions into different organelles
C. The ability to link amino acids as dipeptides
D. The ability to produce offspring
Answer:
The answer is A
Explanation:
CAN SOMEONE HELP WITH THESE QUESTIONS ?!!! I CAN HELP W MATH
Answer:
13) C
14) A
15) D
16) C
17) B, I think
Explanation:
Where do NADP+ and ADP produced in the Calvin cycle go?
Answer:
I think NADP+ and ADP go to Photosythesis ll to fix carbon into sugars. hope this helps.
Explanation:
During the light-independent reactions, the calvin cycle requires nadph and atp. Where does the cell get these molecules?.
The energy carrying molecules are made in stroma where the calvin cycle takes place.
What function do ATP and NADPH serve in light-independent reactions?In photosynthesis, light energy is utilized to cause the photosystem I molecule to make ATP by transferring electrons from chlorophyll to nicotinamide adenine dinucleotide phosphate (NADPH) (Figure 5). In the light-independent processes of photosynthesis, this metabolic energy is utilized to fixation CO2 (Calvin cycle).
The calvin cycle or light independent reaction of photosynthesis happens in the stroma of the Chloroplast. It has certain enzymes that work with NADPH and ATP.
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nmn increases the aerobic capacity of humans during exercise training, and the improvement is likely the result of enhanced o2 utilization of the skeletal muscle
Humans' aerobic capacity is increased by NMN during exercise training, and the enhancement is probably the result of improved skeletal muscle O2 use.
over the past ten years, studies have demonstrated the benefits of NMN for rodents' healthy ageing, increased longevity, and exercise capacity. For instance, adding NMN to one's diet improves energy generation, boosts physical stamina by over 50%, and benefits a number of physiological traits like insulin sensitivity and neuron functiAdditionally, some recent studies show that this study does, in fact, benefit humans, with NMN enhancing muscle performance in men over 60 and insulin sensitivity in prediabetic menopausal women. The topic of whether NMN has a good impact on ageing, health, and activity in younger person
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The scientific method generally begins when a scientist makes _____.
Answer: an observation
Explanation: