Please Help! Science Homework
1. A. What is a compound?

1. B.What is one inorganic compound vital
for chemical reactions in cells? What are four groups
of organic compounds important to living things?

2. A.What three important functions does
water perform in cells?

2. B.Suppose a cell is seriously
deprived of water. How might this lack of water affect
the cell's enzymes? Explain.

3. A.Which of the four types of organic
compounds serve as an energy source for cells?

3. B.Which of the four types of organic
molecules contain the element nitrogen?

3. C.An organic compound contains only the
elements carbon, hydrogen, and oxygen. Could this
compound be a carbohydrate? Could it be a protein?
Explain.

Answer:

1a - A chemical compound is a chemical substance composed of many identical molecules composed of atoms from multiple elements held together through chemical bonds. atoms of the equal element bonded in a molecule do not form a chemical compound, in view that this would require two different elements

1b - Inorganic compounds are critical within the body and responsible for many simple functions. The primary inorganic compounds are water (H2O), bimolecular oxygen (O2), carbon dioxide (CO2), and a few acids , bases, and salts. The body is composed of 60–75% water.

2a - it helps with chemical reactions, cellular form and size and helps the cell regulate temperature.

2b - The chemical reactions vital for life would no longer occur or slow it down.

3a - carbohydrates, lipids, proteins, and nucleic acids

3b -  Proteins and nucleic acids

3c - A carbohydrate has only Carbon, Hydrogen, and Oxygen, with the hydrogen and oxygen in the ratio 2:1. A protein is made of amino acids. ... So without nitrogen atoms, the compound cannot be a protein.  it can be a carbohydrate, because it contains the elements of a compound. An organic compound contains only the elements carbon, hydrogen and oxygen.

Explanation:

The diagram to the left shows a food web in a large park. Each circle represents a different species in the food web. Which of the organisms in the food web could be referred to as primary consumers?
( Picture below)

What occurs during photosynthesis?

Carbon dioxide and water combine to form sugar.
Sugar breaks down into water and oxygen.
Sugar and water combine to form carbon dioxide.
Carbon dioxide breaks down into sugar and oxygen.

How did the Industrial Revolution contribute to global climate change?
A. It led to an increased use of alternative fuels other than fossil fuels.
B. It led to an increased use of coal, oil, and other fossil fuels.
C. It led to the release of chemicals that destroyed the ozone layer.
D. It led to the development of nonrenewable sources of energy. (I think it's B. Please correct me if I'm wrong.)

In three paragraphs, explain the difference between gills and lungs. Give examples of animals with only gills, those with only lungs, and those with both gills and lungs. What are the advantages of having gills, lungs, and both?
HELP ASAP!!!!

Can you guys please solve this for me ASAP???? Thank you=)

Based on these images, what can you say about the tentacles of an octopus and the limbs of a lizard?

sound is a vibration that travels through ______ . some types of matter are made of pieces too small to be seen, called _______ . molecules are the ______ pieces that matter can be broken into without changing the kind of matter. when a string vibrates, it makes molecules of gases in the air next to it _______ . a vibration that spreads away from a vibrating object is a _______ . it carries the energy from the vibrating object outward in all ______ . when sound waves reach your ______ , they make the parts inside vibrate. since air is a mixture of _______ , you may conclude that sound can travel through gases.


SOUND WAVE SMALLEST VIBRATE
MOLECULES MATTER GASES
DIRECTIONS EAR

A class is learning about the evaporation step in the water cycle using a simple model. The model consists of a 1-L container of water. When the container is open, and it receives sunlight, the water can freely evaporate from the container. The students design an experiment using the model. In the experiment, the container will be filled and left open outside from dawn until dusk at different times of the year. The students will run the experiment only on days with clear weather. As a basis of their experiment, the students make an assumption that more water will evaporate from their model when more solar energy is present. Which of the following is a result that the students could predict in order to test their assumption?
A.
Equal amounts of the water will evaporate on summer days and winter days.
B.
Less of the water will remain in the container after one day in summer than after one day in winter.
C.
Less of the water will remain in the container after one day in winter than after one day in summer.
D.
Some of the water will evaporate on winter days but not on summer days.

Beavers, large members of the rodent family in North America, are often referred to as “ecosystem/keystone engineers” by wildlife managers. Ecosystem engineers are described as animals that create, alter, or destroy a habitat. Beavers contribute to river ecosystems by bringing down old and dead trees along riverbanks. They use these trees to make their dams. Although these dams are primarily used for protection and food storage, scientists report that these dams change the surrounding environment in different ways.


Given this information, in three to five sentences, describe a potential benefit that beavers contribute to the ecosystem as keystone engineers and describe a plausible impact that the removal of beavers could have on the surrounding ecosystem.

Which of the following adaptations would help a tree-dwelling nocturnal scavenger survive in its environment?

Light-colored fur
Heels with fur
Night vision
Short snout

Look at the diagram of the rock cycle below.

Which part of the cycle is missing?
A.
sedimentation
B.
melting
C.
crystallization
D.
mineral integration

What type of catastrophic event is likely to occur in the Gulf Coast ecoregion?

Answers:
Drought
Wildfire
Hurricane
Landslide

Read "We Beat The Street" Chapters 13 and 14, then answer the following question. What do both Rameck and Sampson learn from their experiences in jail? Support your answer with evidence from the text.

Someone please help me!

During the night, you woke up to strong rains and wind. You’re not exactly sure which kind of storm occurred. In the morning, you see that a tree in your yard is split in two. This is the only damage and debris in the area.

What type of storm most likely caused the damage?

O cyclone
O hurricane
O thunderstorm
O tornado


WILL GIVE BRAINLIEST!!!! SO HURRY

Hehe i still need help lol

What is the difference between a vascular plant and a nonvascular plant?

The esophagus is part of the alimentary canal.

True
False

PLEASE IS SCIENCE 8th GRADE

Match the characteristics of the biome to the type of rainforest


___ weather year around is warm and humid


____ received about 200 inches of rain a year


___ trees are mostly coniferous


___ greatest variety of

uniquely adapted organism

Please someone help me
Does the Animalia Kingdom creates energy? yes or no?If it does what energy it creates?

How do different climate zones respond to severe weather?
What challenges does each climate zone face?
How can that climate zone be best prepared for severe weather?
Which climate zone is the safest to live in? Why?

Nguyen uses a triple beam balance to measure the mass of each rock. Read the values on the balance for rocks X, Y, and Z.

how do you think bryce felt about losing to austin in you-tubers vs tik-tokers? choose the best answer.


a. pathetic

b. determined

c. embarrassed

d. proud

How are isobars and isotherms alike?

identity the 3 types of RNA that play roles in protein synthesis in this image

How does the orientation of the North Pole change during the year?

Drag and drop the months to correctly match the descriptions.

points away from the sun, so the Northern Hemisphere gets its least sunlight

points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting longer

points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting shorter

points toward the sun, so the Northern Hemisphere gets its most sunlight
December,March,June, or September
(THIS IS SCIENCE NOT BIOLOGY)

Respiration begins when air enters the mouth and nose. As air goes down the trachea, or windpipe, tiny hairs called cilia gently wave to keep dirt and mucus out. At the bottom of the trachea are two tubes called bronchi. One bronchus goes into the left lung, and the other goes into the right lung. When you inhale, the diaphragm muscle between the lungs and abdomen contracts, making room for the lungs to expand.

Which of these best describes how the lungs and diaphragm affect each other?

A
As the lungs expand, the diaphragm expands.

B
As the lungs expand, the diaphragm contracts.

C
As the lungs contract, the diaphragm contracts.

D
The lungs and diaphragm have no relationship.

what cell stage is E in>

What is the fossil connection between Indohyus and the whale? What is the function of this bone? Why do you think these mammals transitioned from land to water?