Answer:
This question is incomplete as it lacks options, the options are:
A. drug dose
B. type of drug
C. force of contraction
D. air temperature
The answer is C. Force of contraction
Explanation:
In an experiment, the DEPENDENT VARIABLE (effect) is the variable that responds to the changes made to the independent variable (cause). It is the variable that is measured as the independent variable is being manipulated in the experiment.
In this case, a student wanted to test the effectiveness of a new type of drug that would partially block Ca2 channels on the sarcoplasmic reticulum. She used a total of 15 frogs, which were divided into three groups and administered different doses of the drug (independent variable). However, the AMOUNT OF FORCE A MUSCLE EXERTED DURING CONTRACTION was measured. Hence, the dependent variable is the force of contraction of the muscle.
Cholesterol is an important biomolecule precursor for hormones. What functional group(s) are present
Answer:
Hydroxyl group, carbon group
Explanation:
This is because cholesterol is a lipid that has four linked hydrocarbon group called sterol. The sterol is the hydroxyl group which form hydrogen biynd with the neighbouring carbonyl oxygen of phospholipids head.
Cholesterol is found in the cells if the body and it is a precursor for producing vitamin D and steroids hormones like aldosterone, cortisone e.t.c
Roses have 70 chromosomes in their body cells, After Meiosis, how many chromosomes would rose eggs/sperm have?
Answer: 35 chromosomes
Explanation: somatic cells are diploid, gametes are haploid, so the gametes will have 35 chromosomes.
The Scarlet King Snake is a non-poisonous snake. It intentionally looks like the poisonous Eastern Coral Snake in order to scare away predators. What is this type of animal adaptation called?
A) camouflage
B) hibernation
C)migration
D) mimicry
Answer:
mimicry
Explanation:
Mimicry, in biology, phenomenon characterized by the superficial resemblance of two or more organisms that are not closely related taxonomically. This resemblance confers an advantage—such as protection from predation—upon one or both organisms by which the organisms deceive the animate agent of natural selection.
okay, the answer is D. mimicry. i mean- think about it: it cant be camouflage because like- camaflouge is where they hide like the stick bug. the stick bug camouflages into the tree. like- the stick bug has the same detail, looks like the tree. so it cant be camouflage. it cant be hibernation because snakes dont hibernate only fur animals do. snakes have scales. it cant be migration because only insects like butterflies, birds, and so on, only they migrate. snakes dont have wings. now we are left with D. if you think its A or D it can be but its D i got an A+ on my test with this question.
PLEASE HELP FAST The tectonic plate on which Florida sits is fairly large. what is the name of this tectonic plate???
Answer:
Most earth tremors are associated with the margins of the Earth's tectonic plates and Florida is securely distant from any of these; the closest is the transform boundary between the North American and Caribbean plates, almost 800 miles to the south.
Explanation:
Answer: The North American Plate
Explanation:
In an experiment the ____
is manipulated by the researcher and its effects on the ______ are measured.
A. Dependent Vairable; confounding variables
B. Independent Variable; Dependent variable
C. Dependent Variable; Independent Variable
D. Confounding variable; independent varible
Answer:
A d e
Explanation:
In pea plants yellow seeds are dominant to green seeds. A plant with green seeds cross at the plant that is heterozygous.
What are the alleles?
What are the genotypes of the parents?
What are the F1 genotypes?
F1 phenotypes?
Answer:
The correct answer is -
1. Y (yellow) and y (green)
2. Yy (yellow dominant) and yy (green)
3. Two heterozygous yellow (Yy) and two green recessives (yy)
4. 50% Yellow and 50% green plant
Explanation:
In the given question, it is given that a pea plant has two alleles for the trait yellow seeds and green seeds, the alleles for the traits are green (y) and Y for the dominant trait.
The cross between the green seed (yy) pea plants, is recessive and heterozygous which means a combination of dominant and recessive are as follows:
Y y
y Yy yy
y Yy yy
Here two heterozygous yellow seeds and two recessive green seed plant offspring.
PLEASE HELP FASSTT!!!
Select all the statements below that are false about evolution by natural selection.
Organisms have traits that are perfectly suited to their environment.
Humans and other apes exist simultaneously because they share a common
ancestor.
Complex organisms are more evolved than simple organisms.
Some unfavorable traits remain in the population during evolution.
How do enzymes affect substrates?
Answer:
Enzymes promote chemical reactions by bringing substrates together in an optimal orientation, thus creating an ideal chemical environment for the reaction to occur. The enzyme will always return to its original state at the completion of the reaction.
Name one area in the world affected by exfoliation.
Answer:
Exfoliation
Explanation:
what is a flagship species?
Answer:
In conservation biology, a flagship species is a species chosen to raise support for biodiversity conservation in a given place or social context.
Explanation:
I just know ig ...
Answer:
an flagship species is a specie as to act as an ambassador
Explanation:
1) Which feature in cnidarians is the strongest indicator that they are more complex than sponges?
They have the ability to reproduce sexually.
They have the ability to attach to surfaces.
They have a medusa body form.
They have nerve cells.
The answer is "They have nerve cells". Edge. 2021
Answer:
-They have the ability to reproduce sexually.
Explanation:
Answer:
They have the ability to reproduce sexually.
Explanation:
I took it
Some conifers lose their needles seasonally, just as deciduous trees do.
True
False
what are the economic activities in the Amazon forest
Answer:
A substantial part of the Amazon rainforest economy comes from illegal activities, like drug dealing, biological trade and wood cutting. Most drugs that reach Europe and United States are not farmed in the region, but Amazon rainforest serves as a path to drug dealers to deliver their production
Explanation:
If a woman is blood Type AB and her husband is blood Type O, what is the probability of blood types that their offspring would have
Explanation:
the probability of blood types that their offspring would have is
B. 2/4 - 50%
A 2/4 - 50%
If solution A has a pH of 2 and solution B has a pH of 8, which of the following statements is true?
a.A has a greater [OH-] than B.
b. A is acidic and B is basic.
C.A is a base and B is an acid.
d.None of these
e. A is basic and B is acidic.
Answer: b. A is acidic, B basic
Explanation: pH 7 is neutral, with equal H+ and OH-
pH is -log(H+ Molar Concentration) and at pH7, H+ and OH- are both at a concentration of 10^-7
A more acidic solution has more H+ than OH-, so it is a higher concentration than 10^-7 and therefore pH lower than 7. Conversely, a pH>7 means a higher concentration of OH- and lower concentration of H+
Considering the definition of pH, the correct statement is option b. A is acidic and B is basic.
You need to know that pH is the Hydrogen Potential. It is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance.
Mathematically, pH is calculated as the negative base 10 logarithm of the activity of hydrogen ions:
pH= - log [H⁺]
The scale has values ranging from 0 to 14, with pH 7 being the neutral solution. Solutions with pH less than 7 are acidic and alkaline (basic) those with pH greater than 7.
Then, being the pH of solution A equal to 2, being less than 7, the solution is acidic. On the other hand, the pH of solution B is 8. As the pH is higher than 7, solution B will be basic.
So, finally, the correct statement is option b. A is acidic and B is basic.
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Some microorganisms have enzymes capable of catalyzing reactions that are difficult or unfeasible by standard industrial chemical treatments. What process takes advantage of these microbes' abilities, by growing the them in the presence of the enzyme's substrate, allowing the microbe to catalyze the step needed to produce some industrial products
Answer:
Metabolic Engineering
Explanation:
Metabolic engineering refers to the process of modifying the genetic and enzymatic processes within cells in order to optimize the output of products. When constraints are noticed in the normal biological process, scientists endeavor to modify the constraints so that wide scale production can be realized.
Examples of processes that incorporate this technique are beer, cheese, wine and some drugs production.
Someone answer 8 pls
Answer:the first one
Explanation:
Which is an advantage that crops may attain through genetic engineering?
A.) modifying pests
B.) surviving droughts
C.) growing organically
D.) maturing longer
Answer:
A
Explanation:
because pests won't be able to eat the plants
Answer:
D. maturing
Explanation:
i think so
How much work is required to pull a sled 5 meters if you use 50N of force?
Answer:
250N/m
Explanation:
Work is Force multiplied by Displacement.
Multiply 5 by 50 and you get 250N/m
*Note: N is newtons and m is meters.
What are some examples of metabolic processes in cells? (Choose all that apply)
Answer:
Metabolism is a set of chemical reactions that they release energy for cellular processes.
Explanation:
Metabolic processes in cells are:
* Metabolism-the whole of all chemical processes, that is, the total turnover of matter and energy is called metabolism.
* Cellular respiration-a process in which organic matter is oxidized, whereby carbon dioxide, water, and energy in the form of ATP molecules are formed as end products of this oxidation.
Which of the following is a biotic factor that might limit a population of mice?
1.water for the mice to drink
2.rainy weather that floods the mice's nests
3.owls that prey on the mice
4.rocks in which the mice can hide from predators
Answer:
owls that prey on the mice
Explanation:
owls are the biotic or live factor that limits mice population because they hunt mice for food
what is a company's obligation to contribute to the sustainability of natural resources?
Answer:
Under law? Depending where and what biz is there is NO obligation, or little if any in most cases.
Under morals, aka higher principles most bussinesses would just have to close.
Under Biblical principles, to subdue is one thing, to destroy is another. Much can be done but won't be because of cost/politics over logic. Sometimes that too is a natural resource, it's called freedom and or liberty and someone is using a lever for an alternate motive just saying it's for the 'trees’. Other cases it's plain and clear destruction for profit and nothing is said.
Record forest fires have occurred in west, some of it because environmentalists interfered with forest management to the point of cost in court and in the field leaving nothing to do. Areas that needed undergrowth and deadwood removed were kept untouched decades. Red tape and global warming made fuel stack up.
Which of the following would increase the density of an object?
decrease mass and increase volume
O increase mass and increase volume
decrease mass and decrease volume
increase mass and decrease volume?
Which of the following would increase the density of an object?
Answer:Increase mass and decrease volume
#CARRYONLEARNING #STUDYWELLThe plasma membrane is composed of both lipids and proteins. The relative concentration of each in the plasma membrane is partly regulated by the
Answer:
Golgi complex
Explanation:
The Golgi complex, also known as the Golgi apparatus, is a cell organelle of eukaryotic cells that functions to sort different molecules which are destined to the plasma membrane. In the Golgi apparatus, proteins and lipids from the Endoplasmic Reticulum (ER) are subsequently processed and classified to be transported to different cell locations including, among others, the plasma membrane, or vesicles which are secreted from cells by exocytosis. Moreover, this organelle also contains specific enzymes (glycosylation enzymes) that function to modify proteins in order to form glycoproteins.
is competition abiotic or biotic?
Answer:
competition would be biotic if it were living or breathing
Explanation:
biotic means it lives, like plants or humans. abiotic means it doesnt live or breath, like a rock. i hope this helped
Competition is a biotic relationship that can have a substantial impact on populations of organisms.
What is meant by biotic? Biotic and abiotic factors are what make up ecosystems. Biotic factors are living things within an ecosystem; such as plants, animals, and bacteria, while abiotic are non-living components; such as water, soil and atmosphere. The way these components interact is critical in an ecosystem.Competition is a biotic relationship that can have a substantial impact on populations of organisms.
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Pls help me solve this. Preferably ASAP
Answer:
c bone marrow and rbc i think correct me if I'm wrong
What causes hotspot volcanism?
What is the movement of air during the day where land and water meet?
Answer:
from water to land
Explanation:
during the day a land has higher temperature than water so the air is lighter on land and makes space for heavier one from water. that's why the air moves from water to land
the movement of air during the day from water to land
what are the properties of water ?The physical property of Water are, it is a colorless and tasteless liquid, have extensive hydrogen bonds resulting in unusual properties in the condensed form.
This also have high melting and boiling points. As compared to other liquids, water has a higher specific heat, thermal conductivity, surface tension, dipole moment, etc.
Water is a great solvent and helps in the transportation of ions and molecules required for metabolism, has high latent heat of vaporization helps in the regulation of body temperature.
It is Amphoteric nature can act as both acid and base means that it is amphoteric in nature, it is Electropositive elements which reduce water to hydrogen molecule and it is the source of hydrogen.
during the day a land has higher temperature so the air is lighter on land and makes space for heavier one from water, hence the air moves from water to land
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2. While gazing into an aquarium, you see bubbles coming from an aquatic plant . What are the bubbles
Answer:
oxygen bubbles
Explanation:
These bubbles are oxygen bubbles that are being produced by the aquatic plants at the bottom of the aquarium. As oxygen usually does it floats to the top of the water and back up into the atmosphere. This happens because of the photosynthesis process in which the plants soak up sunlight and carbon dioxide and uses it to produce and release oxygen. Since this process happens underwater for the aquatic plants the oxygen become bubbles and float up.
What is an example of an extrusive land forms
Answer:
Extrusive landforms are formed from material thrown out to the surface during volcanic activity. The materials thrown out include lava flows, pyroclastic debris, volcanic bombs, ash, dust and gases such as nitrogen compounds, sulphur compounds and minor amounts of chlorine, hydrogen and argon.
Explanation:
here hope it helps