Answer:
fast, intensive reproductive investment
Explanation:
HELP ASAP! Gretchen wants to run a test to discover whether glass, copper, wood, or plastic conduct electricity. She sets up a circuit connecting a battery to a light bulb, with a small gap she will use to test the conductivity of the different substances. One at a time, she connects the circuit with the chosen test material, and records whether or not the light bulb comes on Is this a good experimental design? Answer choices: Yes,because all of the materials gave the results she predicted No,Since we dont know the results No,because she is testing to many things Yes,Because she is only changing one piece of experiment
Answer:
Yes because she is only changing one part of the experiment.
What is true about the three animals a wolf,a dog,and a fox have? A. They share a common ancestor. B. They're unrelated to each other. C. They're extinct. D. They're all the product of artificial selection.
Answer:
A
Explanation:
Because all wolves.................................
The basic unit of length in the interaction system of units is
Answer:
metre
Explanation:
Basic Units:
metre length
second time
kilogram. mass
ampere electric current
On your laboratory test, you are presented with a mollusc that has a closed circulatory system. You know immediately that it must belong to the class ________.
Answer:
Cephalopoda
Explanation:
Cephalopods are the mollusk that has a closed circulatory system by simple circulation. The heart is located in the pericardic cavity and it is divided into two auricles and one ventricle. From the ventricle, the anterior aorta goes forward the head and the posterior aorta goes forward the visceral mass. The anterior aorta branches into many branchial arteries. All of them get united again in the head, in one cava vein from where the blood returns to the posterior extreme. This vein introduces into the pericardic cavity and brunches into two renal veins near the nephridium. Each branch penetrates into a nephridial sac and passes through the muscular branchial heart before it enters the gills. Blood passes from the ventricle to the branchia through many vessels. In the branchia, the blood gets oxygenated again and returns to the auricle. The posterior aorta irrigates the gonads and the mantle, and from the posterior extreme of the body, blood goes forward to the anterior body region through two veins that join the renal veins that flow into gill hearts.
guys... I need answers
Answer:I have a question too HOW DO wait never mind sorry just keep reading please... ok how do I log out or switch accounts I really need to but it won’t let me congrats I wasted your time yay
Explanation:
Answer:
Hey there!
1. They are soft and spongy because they are mostly made of air spaces.
2. The trachea, which is also called the windpipe, is a tube that connects the larynx to the bronchi of the lungs.
3. Breathing through nose is better, because it can allow for more oxygen to get to the tissues.
4. You can use something called limewater. It turns a milky color in the presence of carbon dioxide.
5. Smoking and air pollutions are big causes of breathing problems.
Let me know if this helps :)
Carbon dioxide is A a toxic gas produced by landfills. B produced by plants during photosynthesis. C needed by industry to power generators. D a greenhouse gas that traps heat in the atmosphere.
Answer:
The correct answer is option D, that is, a greenhouse gas that traps heat in the atmosphere.
Explanation:
A natural phenomenon in which the atmospheric gases captivates heat and permits Earth to retain enough solar energy to be livable is termed as the greenhouse effect. The greenhouse gases are the methane, carbon dioxide, nitrous oxide, and other gases, which gathers in the atmosphere and produces a heat-reflective layer that helps in trapping sunlight and keeps the Earth warm.
Of these greenhouse gases, carbon dioxide is the largest contributor to climate change. It is largely emitted at the time of burning fossil fuels like natural gas, oil, and other carbon-rich sources. Due to this, the level of carbon dioxide increases in the atmosphere resulting in the global phenomenon termed global warming.
Learning goal 1: What is the process in all living cells that releases
the energy stored in sugar molecules?
Cellular respiration
Photosynthesis
Decomposition
Recycling
Cellular respiration is the process in all living cells that releases the energy stored in sugar molecules.
Additional information:-Aerobic respiration : The respiration which uses oxygen is called aerobic respiration.
Aerobic respiration produces a considerable amount of energy ( 38 ATP ) .The end products in aerobic respiration are carbon dioxide and water .Which of the following sustainable farming practices allows farmers to rely on their own water supply, rather than bringing in water from different locations? using wells crop rotation drip irrigation using insecticide
Answer:
drip irrigation
Explanation:
The correct answer would be drip irrigation.
It is a small scale irrigation system that is usually set up to minimize water usage compared to other forms of irrigations. The system consists of different pipes that start from the water source and networks to the stands of plants. Control valves also exist and these ensure that water slowly drips directly to the root of plants. The drip could be either from the above or below the ground surface.
Due to the efficiency associated with dripping water directly to the root of plants which is where it is primarily needed, the drip irrigation system requires minimal water supply and is sustainable.
Answer:
D.) Using wells
Explanation:
A patient visits their doctor because they are having trouble digesting complex carbohydrates. The doctor learns that her patient runs 5-10 miles 5 days a week and drinks very little water. The doctor suggested (before doing any major testing) that the patient begin drinking plenty of water each day. The patient visits the doctor a week later and has no problems with digestion. Why did the doctor suggest such a simple change in habit for her patient?
Answer:
porque el paciente corre una gran distancia pero no toma mucha agua, lo que hace que este se deshidrate, entonces al cambiarlo este se hidrataría mejor ayudando a su condición fisisca
Explanation:
por eso
Mosquito repellent is sprayed on one arm and the other arm is not sprayed. The number
of mosquito bites is counted after 2 hours.
o the independent variable is the 2 hour time and the dependent variable is the number of
mosquito bites
o the independent variable is the number of mosquito bites and the dependent variable is the
repellant
the independent variable is the repellant and the dependent variable is the 2 hour time
the independent variable is the repellant and the dependent variable is the number of mosquito
bites
Answer:
Dependent variable: Number of bug bites
Independent variable: Sprayed arm
Control group: Arm not sprayed.
Experimental group: Sprayed arm
Explanation:
If you know the definitions for the independent variable, dependent variable, control and experimental group in a problem than it would be less complicated to figure out what they are in any given example. So, here are the definitions:
Independent variable: the factor that you change
Dependent variable: the factor that is measured
Control group: the factor that is kept the same
Experimental group: the group in an experiment that receives the variable being tested
I had this had a question about this last week and got stumped im sure if this will help you? but I do hope it does and im sure exactly what the entire question is so.... Good Luck!
1. The manipulated variable was the
A number of flies.
B time in days.
C difference in time per group.
D size of the containers.
What process does the grass use to harness this energy? *
Do all organisms rely on the sun for energy
Answer: no
Explanation:
because some plants rely on photosynthesis to survive and they use the suns energy for that but if something does not photosynthesize then it gets energy from food.
What are the three basic parts of the cell theory?
Answer:
What are the three basic parts of the cell theory?
Cells are the basic units of composition for living things.All living things are composed of cells.All cells come from pre-existing cells.Do Now: Why do people have different shades/colors of skin?
Answer:
People have different skin colors mainly because their melanocytes produce different amount and kinds of melanin. The genetic mechanism behind human skin color is mainly regulated by the enzyme tyrosinase, which creates the color of the skin, eyes, and hair shades.
Explanation:
Answer:
People have different skin colors mainly because their melanocytes produce different amount and kinds of melanin.
What part of the body reproduces, grows, repairs itself, uses oxygen and nutrients, digests food, eliminates waste, produces heat and energy, and is able to move around
Answer:
A Human Cell
Explanation:
A Human Cell can do many things. All your organs, hair, skin, and muscle tissue are all made up of cells. Each human cell from a different part of your body can do and create different things. For example, the cells duplicate (which is reproduction), when it duplicates, it grows. It also uses the oxygen and nutrients for cellular respiration, when it takes in the oxygen and nutrients, it turns it into ATP, which is used to help your cells function. There are many other ways the human cell may relate to the question above. But here are some of the ways a human cell can be all those things.
What does the acronym MBOs stand for? What cell type are they present in?
Answer:
Explanation:
Membrane bound organelles and eukaryotic
What are some variables that can change in an experiment?
Answer:
independent and dependent variable
Explanation:
many factors can effect the out come of your independent and dependent variables.
The shoulder is
to the chest.
Medial
Proximal
Lateral
Distal
Answer:
Explanation:eeeeeeh mesi
What part of a meter is a decimeter
Answer:
Decimetre means one-tenth of a meter
1 meter = 100 cm,
[tex]\frac{1}{10}\times 100\\\\=10[/tex]
1 decimetre = 10 cm.
Explanation:
Think of the meaning of the word inferior and then write a sentence using that anatomical term.
Answer: Bacterial infections are inferior to viruses.
Answer:
the foot is inferior to the knee
Explanation:
inferior means to be below
What is Self-pollination.
Answer:
the pollination of a flower by pollen from the same flower or from another flower on the same plant
Answer:
pollination which is done by plants by their own is called self pollination.
What interactions are occurring that allow the water to move against gravity in capillary action? Select three options.
Answer:
Adhesion and surface tension
Explanation:
Capillary action is the tendency of a liquid to rise or fall in a narrow tube. Two main terms are required to explain capillary action; adhesion and cohesion.
Cohesion is the force of attraction between molecules of the same kind while adhesion is the force of attraction between molecules of different kinds.
Forces of adhesion causes water to move up in a capillary tube. The water is held as it rises by surface tension forces acting on the circumference of the meniscus. The water keeps rising in the tube until the weight of the water drawn up in the tube balances the surface tension acting at the top column of the water.
Matt manages a company that monitors the wastes from a company that produces radioactive byproducts. Matt is most likely a(n) medical doctor. agricultural engineer. archeologist. nuclear scientist.
Answer:
Nuclear Scientist
Explanation:
Answer:
Nuclear Scientist
Explanation:
I did it
what would be the affect on pcr reaction, if primers are not added in the reaction?
Answer:
In absence of the primer the reaction lacks a primer template junction, and thus a free 3′-hydroxyl group will cause the reaction to fail.
Explanation:
In the PCR reactions primers are used to bind to ssDNA template hybridize itself and define the segment or part of the sample that will be amplified. This hybridize template makes the primer template junction.
If primers not added this junction would not be created then the enzyme DNA polymerase cannot make new DNA due to there is no free 3′-hydroxyl group which is essential to bind with the first deoxynucleotide.
Thus, In absence of the primer the reaction lacks a primer template junction, and thus a free 3′-hydroxyl group will cause the reaction to fail.
Which of the following heart block dysrhythmias is identified by a repetitious prolonging PR interval pattern after each blocked QRS complex
a) first degree heart block
b) second degree heart block type I
c) second degree heart block type II
d) third degree heart block
Answer: Option A.
first degree heart block
Explanation:
First degree atrioventricular block is a condition that is associated with electrical condition system of the heart in which the electrical impulses is conducted from the cardiac atria to the ventricles via atrioventricular node in a slow manner compare to the normal transmission.
It is first degree great block because it is characterized by prolong PR interval on an electrocardiogram (ECG) to more than 200 msec and atrial impulse is transfered to the ventricles, which lead to regular ventricular rate.
The PR interval of the surface ECG is measured from the start of atrial depolarization (P wave) to the commensement of ventricular depolarization or QRS complex.
The part of a cell which contain chromosomes?
Answer: the nucleus contains chromosomes.
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Hope that helps!
Consider this plant cell. The organelles in a plant cell are labeled. Part G is the middle layer of the cell. Which organelle is labeled G? cytoplasm cell wall cell membrane vacuole
Answer:
cell membrane
Explanation:
jus took the test on edg
Answer:
c
Explanation:
1. Describe what it means for a field of study to be considered a science.
Answer:
Science refers to a system of acquiring knowledge. This system uses observation and experimentation to describe and explain natural phenomena. ... Less formally, the word science often describes any systematic field of study or the knowledge gained from it.
Answer:
Science must have these five characteristics to be considered science. The five characteristics are Observable, Testable, Replicable, Reliable, and Flexible.
Explanation:
Science is a very hard thing to define so instead five characteristics are used to prove it is science.
Please help!
Choose from the following list the three genotypes the parents must have in order for a daughter to have X b X b
X B X B
X B X b
XY
X b X b
X B Y B
X b Y b
X b Y
Answer:XB Xb
Explanation:
XB Xb ×XB Xb=
XB XB,XB Xb,Xb XB,Xb Xb