can someone explain please

The what tells how many protons or electrons there are in an atom

choices:
A.atomic mass
B.atomic number
C.electrons

can someone explain i’m a bit confused??

Choose the correct level of organization (smallest to largest) in the skeletal system. *
6 points
Osteocyte → Compact Bone Tissue → Femur →Skeletal System
Compact Bone Tissue → Osteocyte → Femur →Skeletal System
Compact Bone Tissue → Skeletal System → Osteocyte → Femur
Osteocyte →Compact Bone Tissue → Skeletal System→ Femur

What is the passage mainly about?

a
different tools humans have invented to harness information
b
gamma rays and x-rays
c
electromagnetic waves and how humans utilize them
d
why waves have different wavelengths

(10 points) Marine Biology

figure out what goes in the blank

A number of compounds in the atmosphere have the effect of warming the Earth's surface.
Scientists have found that recent increases in the abundance of the compound (*Blank*)
in the atmosphere have been the most important factor in causing recent global warming trends.

HELPPPPPPP!! To maintain homeostasis, the human body has many systems that remove wastes from the body. Which correctly explains how two organ systems interact to eliminate wastes?

A.
The muscular system helps the bladder to release urine from the excretory system to maintain homeostasis.

B.
The muscular system helps push carbon dioxide wastes from the respiratory system to maintain homeostasis.

C.
The muscular system helps squeeze solid wastes from the digestive system to maintain homeostasis.

D.
All of the answer choices correctly explain how two organ systems interact to eliminate wastes to maintain homeostasis.

PLSSSSSSSSSS Which best explains why a person can tell the difference between a whisper and a yell?

Sound waves turn into chemical signals that indicate certain sounds.
Different vibrations in the ear cause the brain to interpret different sounds.
The fluid in the cochlea picks up electrical signals for the intensity of sound.
The eyes see what is making the noise and help the brain process the sound.

Who were carriers for of hemophilia in the royal family?

Which tissue system in the plants are the most similar to the integumentary system in animals explain your reasoning

Only answer if you have an answer to the question. Thank you.

Only answer if you have an answer to one of the questions. Thank you.

Read the following sentence:

"When you look at a basketball, what are you seeing?"

Why might the author have started the passage with this question?

a
to give the reader an object to visualize before examining the role of light
b
because the main idea of the passage is about basketball
c
because the author wants to use the example of basketball to explain electromagnetic radiation
d
to show how important the color orange is to electromagnetic waves

Answer these two questions

Identify the fluxes by which water leaves organisms of the biosphere and moves to other spheres.
condensation
evaporation
precipitation
transpiration
urination

Which is most likely a chemical property?
A) Oxidation state: the charge an atom has if it was bonded ionically to other atoms Different oxidation states indicate different abilities to bond with other atoms.
B) Melting point: the temperature at which a solid turns into a liquid. Different substances have different melting points.
C) Density: the amount of a substance that fits in a certain volume. Different states of matter of the same substance can have different densities.
D) Conductivity: the ability to transfer electrical charges. Conductivity is different in different substances.

Describe what happened with Mendel crossed purebred tall pea plants with purebred short pea plants.

Please help will give brainliest if answer is backed up with two sentences!

HELPPPP ASAP!!!!! These are the last onesss

The graph below shows the average amount of rainfall of several types of biomes.


(look at image attached)


A certain type of plant cannot survive in very wet areas.


Which of the following biomes would best support this type of plant?

A.

tropical forest

B.

semiarid desert

C.

temperate forest

lol please sm1 help with this picture provided

You overheard a classmate in the hallway say the following statement.
???: it gets warmer when you move up the atmosphere because you are getting closer to the sun.”
Do you agree or disagree with him.
If possible could you explain why you agree or disagree it could help me a lot because I’m kinda confused.

Some elements have properties of metals and nonmetals, which make them useful in electronic devices. Where can these elements be found?

a

section B

b

section D

c

section C

d

section A


What are the names of the two subatomic particles located at y?

a

neutrons and electrons

b

protons and neutrinos

c

neutrons and protons

d

protons and electrons



Plz help will give 20points

Digestive bacteria and humans - Human beings have what is often called "good" bacteria in
their digestive systems. This "good" bacteria exists in order to help the human to digest food
Some foods cannot be digested entirely: so, when these foods are consumed, the bacteria
in the digestive system feed on those foods.
The bacteria stay alive.
The human gets help with the process of digestion.
predation
mutualism
competition
commensalism

Science question that I REALLY need help with:

How does kidney failure prevent the excretory system from operating?


The bladder stops working.


Blood is not properly filtered, leaving waste in the blood.


It does not affect the excretory system.


The intestines stop working.

A part of the periodic table is shown.
Which of the following elements is less reactive than the others? Beryllium (Be) Calcium (Ca) Lithium (Li) Magnesium (Mg)

7th grade science help pls

How do you use gene version in a sentence?

Proxima Centauri and the Sun are both main sequence stars, but Proxima Centauri is a red dwarf and the Sun is a yellow dwarf. Based on the information you charted, compare the characteristics of red dwarf stars and yellow dwarf stars.

i’m just a little confused can someone explain ?