I found this i hope it helps
About the Heart and Circulatory System
The circulatory system is composed of the heart and blood vessels, including arteries, veins, and capillaries. Our bodies actually have two circulatory systems: The pulmonary circulation is a short loop from the heart to the lungs and back again, and the systemic circulation (the system we usually think of as our circulatory system) sends blood from the heart to all the other parts of our bodies and back again.
Cells sometimes use passive transport to move molecules across their membranes. The rate at which a cell engages in passive transport is determined by —
the amount of energy that the cell generates.
the composition of the cell membrane.
the size of the cell's chloroplasts.
the number of vacuoles that the cell contains.
Answer:
b
Explanation:
a collection of tissues that work together to perform a specific function would be known as which of the following?
Question 12 options:
organ
biome
body systems
molecules
Evidence that a meteor passed through to the surface of a moon or planet would be
A) a fiery streak in the sky
B.) impact crater
C.) meteorite pieces found on planet's surface
D.) both b and c
Answer:
D
Explanation:
From which hot spot would you view Polaris at an altitude of 45 degrees?
Answer:
Massena, New York
Explanation:
Polaris is most popularly known as the North star. It is also famous by the name of "Pole Star". It is the closet to the north celestial pole. At present it is the northern pole star currently.
It is found in the constellation of Ursa Minor. It is the one of the brightest star seen in the night sky. It is considered the star of the second magnitude which is situated close to the heaven's north pole.
The altitude of the Pole star or the Polaris when an observer is at the Tropic of Cancer is measured at 23.5 degree. While if the observer sees the Pole star at its zenith, the observer is located at the North Pole. i.e. 90 degree.
And the spot from where the observer views the Polaris at 45 degree altitude is Massena, New York.
What holds the base pairs together in DNA molecule?
Answer:
Hydrogen Bonds
Explanation:
Answer:
They are held together by hydrogen bonds
20. A solution of pH 2.8 is?
A. acidic
B. basic
N. neutral
What are some of the medical advances made recently?
MRIS
Camera's small enough to swallow
Sterilization of instruments
Eye glasses
Penicillin
CAT scans
Answer:
B, C, F
I'm not sure if these are exactly correct, but I hope I helped at least a bit!
Why is part of the Moon dark?
A)Light from the sun only illuminates half of the Moon.
B)Earth's shadow is on half of the Moon.
C)The Moon only makes light on one side.
D)Clouds are blocking half of the Moon's light.
E)The Moon is made up of light and dark rocks.
Answer:
A)
Explanation:
How are rainbows made?
Answer:
Explanation:
The sun makes rainbows when white sunlight passes through rain drops. The raindrops act like tiny prisms. They bend the different colors in white light, so the light spreads out into a band of colors that can be reflected back to you as a rainbow.
Here is an easy question with 20 points :))))
Which best explains how some animals survive in a cold and snowy habitat?
A) They find shelter.
B) They hunt at night.
C) They sleep all summer.
Answer:
heyyyyyy
Explanation:
nfxhuyhffgggvvuhgggg
I like it cur G
Name 2 body systems that interact to maintain
homeostasis in the human body and explain how they do
Answer:
Internal Temperatures
Similarly, the cardiovascular, integumentary (skin and associated structures), respiratory, and muscular systems work together to help the body maintain a stable internal temperature. If body temperature rises, blood vessels in the skin dilate, allowing more blood to flow near the skin's surface.
OR,
The nervous and endocrine systems exert the ultimate control over homeostasis because they coordinate the functions of the body's systems. Regulation of body temperature, blood pressure, pH, and glucose concentration are four examples of how the body maintains homeostasis.
Hope you know
Do you think wolves are a keystone species? Explain your answer. WILL GIVE BRAINLIEST
Answer:
Wolves are a critical keystone species in a healthy ecosystem.
Explanation:
By regulating prey populations, wolves enable many other species of plants and animals to flourish. In this regard, wolves initiate a domino effect on their environment.
Answer:
Wolves are a critical keystone species in a healthy ecosystem. By regulating prey populations, wolves enable many other species of plants and animals to flourish. In this regard, wolves initiate a domino effect – “touching” songbirds, beaver, fish, and butterflies.
what is the electric charge on a neutron
Answer:
Neutral
Explanation:
Which of the following describes how both of these cellular division processes maintain genetic continuity?
А.Both processes involve the replication and division of identical genetic material.
B. Both processes creates cells with half the genetic material of the parent cells.
C. Both process involve the recombination and division of new genetic material.
D. Both processes create cells with twice the genetic material of the parent cells.
Answer: Both processes involve the replication and division of identical genetic material
Explanation:
During S phase interphase DNA is replicated and it is replicated as an exact copy
When a single cell divides into two cells through mitosis, genetic continuity occurs. One cell divides into two during the process of mitosis, and each of the two progeny cells has the same amount of DNA as the parent cell.
What is genetic continuity?The fact that when a cell divides, the resulting two daughter cells have the same number and type of genes as the original cell is referred to as genetic continuity. It also describes how when two sexually reproducing organisms mate, their offspring have the same number of genes as the parents. Nuclear division results in daughter cells with identical sets of chromosomes. Mitosis ensures the genetic continuity of the ancestral cells in the body's daughter cells. It consists of one fully equational division followed by a DNA synthetic phase. Because it creates a perfect copy of DNA for new cells, DNA replication helps to maintain species genetic continuity.To learn more about Genetic continuity refer to:
https://brainly.com/question/7544194
#SPJ2
Which of the following is the correct order of anaerobic respiration?
A) Glycolysis, fermentation
B) Fermentation, glycolysis
Answer:
A) Glycolysis, fermentation
Explanation:
Glycolysis must occur first because fermentation requires pyruvate, and NADH.
Answer:
A
Explanation:
I looked it up and honestly it seems like the smarter answer.
Which will best show lakes, rivers, and streams are healthy?
Answer: Large Amounts of Dissolved oxygen
Explanation:
An egg is protected by its outer shell. However, the shell also allows moisture and air to pass through. Which cell structure performs a similar function? A. cell membrane B. cytoplasm C. nucleus D. vacuole
Answer:
A. Cell membrane
Explanation:
The cell is the basic unit of the living organisms. The cell consists of the various cell organelles like nucleus, mitochondria and Golgi. The cell membrane covers the cell boundary.
The outer shell protects the egg and allows the exchange of moisture. The plasma membrane performs the similar functions ad allows the transport of some selected particles only.
Thus, the correct answer is option (A).
Answer:
A. cell membrane
I hope this helps
PLEASE HELP I ONLY HAVE 10 MIN TO TURN THIS IN !!!!!!!!!!!!!!!!!!!!!!!!!!!!
Everything is in the images below
WILL MARK BRAINLIEST!!!
Answer:
742246473898320102774391036475
You get a cut on your finger and some bacteria enter. Your immune system cells kill off the invaders by ingesting them. This is an example of:
On what day did the Paramecium aurelia population reach the carrying capacity of the environment? How do you know?
One reason why people should be aware of the impact of their actions on the environment is that
PLEASE HELP WILL CHOOSE BRAINLIEST
Choose all of the following that would require active transport to pass through the membrane
hydrophobic molecules
Polysaccarides
Proteins
Carbon dioxide
Oxygen
Large polar molecules
Answer:
proteins!
Explanation:
Jonathan designed an experiment to plant lima bean seeds. His variable was to change what kind of light each plant received. He
used a different kind of light with each plant. He hypothesized that the plant grown under the plant light would have the greatest
amount of growth. Did the data support the hypothesis? Explain.
Answer:
Yes, it was.
Explanation:
The data did support the hypothesis because the data given was generalized on the change of light each plant received. The hypothesis was that the plant light would have the greatest amount of growth. The data was the different light types and the hypothesis was which one he inferred would work best.
Answer:
- The type of plants used in the study
- The number of plants in each experimental group
- A complete citation of the source
Explanation:
What steps of the water cycle are affected by gravity and which by the Sun?
What is the order of the phases based on the image?
Answer:
What is the correct order of the phases?
These phases occur in strict sequential order, and cytokinesis - the process of dividing the cell contents to make two new cells - starts in anaphase or telophase. Stages of mitosis: prophase, metaphase, anaphase, telophase.
Explanation:
Identify the compound that plants make to store as energy.
Answer:
The chemical compound used as energy in the plant is Glucose. Glucose is the plants form of sugar aka food. The plant uses glucose to grow. Hope this helped. Please mark brainiest
Answer:
Glucose
I hope this helps
Which part of the membrane can catalyst chemical reactions
Answer:
Should be the proteins
PLEASE ANSWER ASAP!!!
Answer:
An ecosystem
Explanation:
Answer:
D: an ecosystem
Explanation:
This is because if you're surrounded by all communities to make one that is classified as an ecosystem.
What important soil function does soil structure influence ?
Answer:
A good soil structure is important to allow air and water into the soil which are vital for healthy plant growth. It will improve drainage and reduce soil erosion caused by excess surface run-off. Without structure, soils will suffer from anaerobism, waterlogging and nutrient lock-up and, ultimately, plants will die!
I hope you helped^_^
Follow me for more answersWhat percent of your body weight does muscle make up?
Answer:
33% to 38%
Explanation:
Answer:
fifty percent
Explanation:
In humans, muscles make up about thirty to fifty percent of a person's total mass
