7th grade science help pls

Answer:

d

Explanation: the genes carry what is needed to change, and the cells change due to what is happening in the genes

Answer:

with what

Explanation:

becuse how am i going to help

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

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

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

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

can someone explain i’m a bit confused??

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

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)

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.

Answer these two questions

In an experiment, equal amounts of heated water and soil were left to cool down. The initial and final temperatures of each were recorded. A partial record of the temperature is shown.

Experimental Record
Substance Initial Temperature Final Temperature
Water 27 °C 24 °C
Soil 27 °C ?

Which statement about the final temperature of soil is correct?

It will be less than 24 °C as soil loses heat relatively faster than water.

It will be less than 24 °C as water loses heat relatively faster than soil.

It will be more than 24 °C as it takes relatively longer to change soil temperature than water temperature.

It will be more than 24 °C as it takes relatively longer to change water temperature than soil temperature.

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

i’m just a little confused can someone explain ?

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.

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

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

Science question that I REALLY need help with:

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

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

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

How do you use gene version in a sentence?

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.

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

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.