Please help me with question 3 part a . Thank you :))
Answer:
1
Explanation:
1,2,3
(a) The oscilation in the pressure inside arteries and arterioles is called by the cardiac rythm. During ventricular systole the pressure rises and during ventricular diastole it decreases
(b)Because when referring to capliaries there is a smaller diameter in the cross section but the surface is bigger. This means that the pressure decreases and the blood has a steady flow instead of periodic bursts.
A child is born to a mother whose blood group is A and a father whose blood group is B. The child is
of blood group A. According to this which of the following is true?
In animal cells, what are spindle fibers?
Spindle fibers are aggregates of microtubules that move chromosomes during cell division. Microtubules are protein filaments that resemble hollow rods. ... The spindle apparatus of a cell is comprised of spindle fibers, motor proteins, chromosomes, and, in some animal cells, microtubule arrays called asters
Can someone help♀️ I suck at science.
Answer:
D
Explanation:
Please tell me fast.
Help me
Answer:
TRUE
Explanation:
PLEASE LOOK AT THE PICTURE I REALLY NEED HELP
Answer:
B
Explanation:
I think that a statement of purpose is to define the objective of an experiment.
Hope this helps UwU
Prokaryotic cells do not contain many of the organelles that eukaryotic cells have. Prokaryotic cells do have a primitive form of
ribosomes
chloroplasts
mitochondria
Golgi apparati
Answer:
ribosomes
Explanation:
the only common organelle between the eukaryotic and prokaryotic cell
the primitive prokaryotic ribosomes are 70S while the eukaryotic ribosomes are 80s
SO I NEED HELP WITH RESEARCH AND I DON'T KNOW HOW TO DO GOOD RESEARCH PLZ GIVE SOME IDEAS AND THE TOPIC IS A PROSTHETIC HAND FOR MY SCIENCE PROJECT ANSWER IF U CAN THANK U!
Answer:
well ambroise pare made it back in the 16th century
Explanation:
Answer:
Try looking it up!
Explanation:
Try looking up diagrams of a prosthetic hand, and going through what each part does. Or, try looking up how they're implanted, the history of prosthetic hands, etc.!
Try to organize your notes as well, and credit the sources used. This'll help you big time!
Hope this helps <3
Why do scientists give species latin names
Which of the following is not true about water?
A Its smallest form is a molecule.
B It’s made of two different elements.
C It has the same charge throughout.
D It occurs both inside and outside of the human body.
Answer:
Im pretty sure everything but C is correct...
Water is a compound whose molecule is made up of two elements, namely hydrogen and oxygen. Because of the different atoms, the charge throughout is not the same. Thus, the correct option is C.
The molecule of water contains three atoms in total, two of hydrogen and one of oxygen. It is represented chemically as H₂O.
Because of the difference in the atoms, there is also a charge that is formed due to the difference in the electronegativity of oxygen and hydrogen atoms.
As a result. the electrons are more pulled towards oxygen andthus, oxygen has a more negative charge and hydrogen has a more positive charge.
Thus, the charge is not distributed throughout evenly. Thus, the correct option is C.
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Which organelle allows bacteria to stick/adhere to surface or host cells
Why might scientists study modern day organisms like birds to learn more about extinct organisms that lived millions of years ago?
because they have similiar genes? The modern organism were same species as them in the past, i think they just evolve
They share genetic traits. The current organisms were once members of the same species as them. It is believed they just evolved.
What is extinct organisms?A species is considered extinct when there are no longer any surviving examples of it anywhere on the planet. This can happen with both plants and animals. An organic byproduct of evolution is this. However, sometimes extinctions happen far more fast than usual. The primary contemporary causes of extinction include habitat destruction and loss, mostly due to deforestation, overexploitation via overhunting and overfishing, invasive species, climate change, and nitrogen pollution.
When there are no longer any living members of a certain animal or plant species anywhere in the globe, the species has become extinct. This is an organic byproduct of evolution.
Thus, They share genetic traits. The current organisms were once members of the same species as them.
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Gene regulation in eukaryotes is less complex than in prokaryotes
true or false
Answer:
Explanation:
Eukaryotic gene expression is more complex than prokaryotic gene expression due to the process of seperation.
So its False
measure of how acidic or basic a substance is
Answer:
You can use the pH scale
Explanation:
The pH scale ranges from 0-14 and is used to measure how acidic or basic a substance is!
Root hair cells are tiny, and there are hundreds of them on each plant root.
Suggest how this helps to increase the rate at which the plant can take
up
water.
Answer:
surface area to volume ratio
Explanation:
the tiny the hair root the higher their rate of absorbility
please help me!!! i would really appreciate it
Answer:
A- They will no longer grow thick coats of fur in the winter.
what are the defense mechanisms of the human body
help I've been having trouble with this one
why onion leaf becomes springly and firm when we add water
Explanation:
Onions and their close relatives–chives, garlic, shallots, and leeks–are among the oldest of home garden plants. Allium is the genus for these crops. All varieties of Allium require loose, well-drained soil rich in nitrogen.
There are hundreds of varieties of onion family plants. All suffer from similar pest, disease, and cultural problems
What type of pressure system usually brings cloudy, stormy, or 'lousy'
weather?
Answer:
Low Pressure System
Explanation:
Low Pressure System is a region where the atmospheric pressure is lower than that of surrounding locations.
Low pressure because that sucks the surrounding air in creating a "mushroom cloud" of air and water vapour. This then cools and condenses creating clouds and rain.
radium in an element found in group 2 and period 7. in a normal radium atom, how many energy levels contain at least one atom?
A. 1 B.6 C.7 D.8
Answer:
the answer is d
Explanation:
In a normal radium atom, there are 7 energy levels.
The periodic table is arranged in groups and periods. The elements in a group have the same number of valence electrons while the elements in the same period have the same number of energy levels.
Radium is an element in period 7. The fact that it is in period 7 implies that it has 7 shells or energy levels. Hence, in a normal radium atom, there are 7 energy levels, each containing electrons.
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How can infectious diseases be transmitted?
Answer:
Infectious diseases commonly spread through the direct transfer of bacteria, viruses or other germs from one person to another
Explanation:
Answer:
they are transmitted from hand to food .transfer of bacteria ,virus ,physical contact between an infected person and a susceptible person.
Where on the plasma membrane are you least likely to find water?
Answer:
On the inside of it.
Explanation:
A jar contains several different types of atoms. The proportions of these atoms can be changed slightly without changing any substance in the jar. This jar contains
Answer:
a mixture
Explanation: A mixture consists of different atoms that are not chemically bonded. It is of two types of the heterogeneous mixture and homogeneous mixture. The chemical substances can be differentiated visually in the heterogeneous mixture.
In a mixture, the proportion of atoms can be slightly changed without changing or modifying any substance. This is because the individual substances in mixture keep their properties when mixed together. Further, mixtures have variable compositions and substances. these mixtures can be are separated using physical methods.
name of the german scientist from the 1800's that studied animals
Answer:
Theodor Schwann is a german scientists from rhe 1800s
The diagram below shows a portion of the concept map for the Rock Cycle:
Metamorphic
Rock
???
Igneous
Rock
Which of these would best fit in the missing part of the cycle?
Magma
Sediments
Sedimentary rocks
Lava
Answer:
Magama
Explanation:
after the metamorphic rock it melts in to magama
Answer:
magma
Explanation:
Which of the following provides the best
explanation for this change?
A. The color change helps it find food more
easily.
B. The color change helps protect it from
predators.
C. The color change helps it regulate its body
temperature better,
D. Brown feathers are better than white ones for
flying during mating season.
Answer:
there is nothing for us to explain
Explanation:
What is the function of the parts labeled X in the model?
Answer:
Mitochondria are membrane-bound cell organelles that generate most of the chemical energy needed to power the cell's biochemical reactions.
Explanation:
A 500-gram (g) ball is located on top of a table. Which measurement will the student need to take if he wants to calculate the potential energy of the ball?
A. volume of the ball
B. density of the ball
C. vertical distance from the floor to the ball
D. horizontal distance from the ball to the edge of the table
Describe three interactions that red wolves might have with non-living factors.
The three interactions that red wolves might have with non-living factors are weather, habitat, and prey.
What are the nonliving components which are essential for the growth of the body?Carbohydrates and lipids are the non living components which are essential for the growth of the body. Carbohydrates has been defined as the biomolecule that contains carbon, hydrogen. and oxygen in a ratio of 2:1. Carbohydrates were the main source of the energy for body and they work as fuel or power for the brain, kidneys as well as central nervous system and for the muscles of heart. is the basic formula for all carbohydrates.
Lipid has been defined as an organic compound which has unable to dissolve in the water. The example of the lipid are oils, waxes, hormones, and fats. The main function of lipid has to maintain the structure or components of the cell membranes, storage site of energy, and important molecule for cell signaling.
Therefore, The three interactions that red wolves might have with non-living factors are weather, habitat, and prey.
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