help me plssssss asap. thanks.

What does the chemical formula CaCl2 show about the compound it represents?

O It is made up of one element.
O It is made up of two.
O It is made up of three elements.
O It is made up of four elements.

8. Which condition could be caused by a lack of iron?
A anaemia
B cholera
C scurvy
D diabetes

Which sentence best explains how a unicellular organism gets nutrients? Explain why.

A. It has a digestive system that takes in nutrients

B. It takes in all its nutrients through the cell membrane

C. It combines specialized cells into tissues that take in nutrients

D. It relies on individual specialized cells to take in nutrients

someone help me wit this thanksss

50 POINTS
Which organisms are prey?

When tissues are injured or infected, chemical signals can be releases that affect the plasma membrane of cells that line the nearby blood vessels. These blood vessels cells (endothelial cells) respond to the chemical signals by displaying a type of glycoproteins on their surface. These proteins will attach to circulating white blood cells bringing them to the site of injury or infection. These glycoproteins would best be described as ________.

How do oxbow lakes form?

A - Rivers are dammed, and the water builds up, creating a lake.
B - Runoff pools in areas of low elevation, creating a temporary lake.
C - Rivers wear away banks until the bank is broken and the river flows straight.
D - Glaciers leave deep channels in the ground, which fill with water and become a lake

Question 7(Multiple Choice Worth 1 points) (05.02 MC) Hugh wrote the characteristics of two types of galaxies as shown below: Type A: Has a central core from which curved arms come out Type B: Forms a perfect sphere or a smooth flattened oval Which statement is correct? Type A is a lens galaxy and Type B is an irregular galaxy. Type A is an irregular galaxy and Type B is a lens galaxy. Type A is an elliptical galaxy and Type B is a spiral galaxy. Type A is a spiral galaxy and Type B is an elliptical galaxy.

Which is a force that holds atoms together?

O chemical bond
O electron shell
O valence electron
O chemical formula

WILL MARK BRAINLIEST match the word to the correct description

I'LL GIVE BRAINLEST:

Schools should change what they serve for lunch." Is this a fact or opinion? Explain. ​

How does the energy of an electron relate with the distance from the nucleus?


a. The closer a proton is from the nucleus, the greater the electron's energy.

b. The closer an electron is from the nucleus, the greater its energy.

c. The farther a proton is from the nucleus, the greater the electron's energy.

d. The farther an electron is from the nucleus, the greater its energy.

e. The closer a neutron is from the nucleus, the greater the electron's energy.

Herbivores and carnivores are both types of consumers in a food web but they are on different trophic levels. Why are herbivores and carnivores on different trophic leves
оооо
Herbivores have more available energy and are at a lower trophic level because they receive energy directly from producers.
Carnivores have more available energy and are at a lower trophic level because they receive energy directly from producers.
Herbivores have more available energy and are at a higher trophic level because they receive energy directly from carnivores
o Carnivores have more available energy and are at a higher trophic level because they receive energy directly from herbivores,

Based on this image, what is responsible for the pattern of ocean currents?


differences in water density


Earth's rotation


differences in water temperature


differences in water salinity

The diagram below shows the branching tree diagram for humans. The text box below it shows the set of derived shared characteristics for the branching tree. . Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram. Where in the branching tree would you most likely write "lives on land during all life stages"? Explain your answer.

In science, a theory is a well-tested set of ideas that explains a wide range of observations. Using this definition, explain why Darwin's theory of evolution is more than a guess.

The model shows water molecules interacting. The gray circles represent oxygen, and the white circles represent hydrogen.

Answer the question in the picture please

approximately how many pandas lived in captivity between 1999 and 2003? *

1,600

1,100

400

100
I need this today or tmr

Where do plants get the energy they need to grow? How about animals?

i need this answer asappppp.

In the ocean, there are small fish that live in and around the mouths of large sharks. The shark does not harm the fish because the fish pick food from between the shark's teeth. In return the small fish
symbiosis exists between the sharks and the small fish?
o commensalism
mutualism
parasitism
predation

Plssssss Help!!! Will mark brainiest!!!
In 1995, the Hubble space telescope photographed a tiny spot in the sky for a period of 10 days, 342 exposures or place together to create an image known as the Hubble deep field. The image to the right shows a collection of billions of stars. The Hubble deep field shows at least 3000 groups of these stars. Which term describes this group of stars?

list 5 examples of science....

Bone is a connective tissue that provides support for the body with its strength and rigidity. Which of the following provides the best explanation for how this is so?

Polar bears give birth and hunt on sea ice. Animals from the Arctic need to have a frozen mass of ice so they can live and have a habitat.

Which of the following would help polar bears stay on solid "ground/ice" during the summers, when Arctic ice is melting more?

Group of answer choices

Growing another layer of fur during summer

Migrate inland to search for different food sources

Sticking to the usual diet of seals

Staying put until the ice refreezes

Match the word with the correct definition

transfer of heat through direct contact


Transfer of thermal energy by electromagnetic waves


Caused by currents transferring heat in a fluid

1.
Conduction

2.
Convection

3.
Radiation

Picture below for more info.

WORD SCRAMBLE OCEAN ANIMALS!
BRAINLIEST ON THE LINE! HAVE FUN!

help me plssss thanksssssssssssss.