Answer:
D. a nucleus
Explanation:
in atom structure what is present in the same numbers as the protons in an atom.i will make as brainlest
Answer:
Explanation:
electrons i believe. That is why an atom has a neutral charge- electrons and protons cancel each other out
Answer:
Electrons
Explanation:
An atom contains the same number of protons as electrons to maintain a negative charge. An ion is an atom which has lost or gained electrons.
Accepta bond formed by the electrical attraction between two oppositely charged ions is a(n)_____.
Answer:
Ionic bond
Explanation:
A bond formed by the electrical attraction between two oppositely charged ions is an Ionic bond.
why do plant cells need chloroplast
Answer: Sample Response: Plant cells need chloroplasts so they can capture light energy to make food within the cells. Plant cells make their own food to produce energy that the cells use.
The seed plants become dominant during the late when the climate became
Answer:
Cold
Explanation:
They can not survive in cold conditions
Biology
heeeeeeeeeelp
Answer:
substrate
active site - inside enzyme
Enzyme-substrate complex
Explanation:
How do I explain this? ‘The plant shows the characteristic responding to environment because...’
phototropism : shoot grows upwards in response to light stimulus.
hidrotropism : roots grow to the area with the highest water concentration.
geotropism : a coordinated process which shoot grows against gravity while root grows down the gravity.
Which of the following types of cells suppress immune responses?a. Neutrophilsb. Plasma Cellsc. Macrophagesd. Regulatory T Cells
Answer:
The correct answer is d.
Explanation:
Regulatory T-cells are a class of T cells which are part of the immune system that suppresses immune response. They are called regulatory because they assist in "checking" the excesses/overreaction during immune response.
NOTE:
Neutrophils are phagocytic in nature; they ingest and destroy microorganisms or other foreign molecules.
Plasma cells synthesize antibodies which are produced in response to antigens. They are target foreign particles for digestion by other immune cells.
Macrophages are also phagocytic in nature usually found at sites of an infection.
4. Distinguish between the types of scientific
investigations. Does all scientific knowledge
come from experimentation? Explain your
answer. SC.7.N.1.3
Answer: Descriptive, Comparative and Experimental (which comes from experimentation).
Explanation:
There are three types of scientific investigations:
Descriptive: This type of scientific investigation studies parts of a system, which can be natural or artificial. It describes everything that is being studied and no predictions are made. There are three types of descriptive methods: case-study methods (an in-depth study is produced from many sources with different methods), observational methods (no questions asked, just an observation of the behavior of a subject and no manipulation of the variables), and survey method (some people are interviewed and the researchers study the answers.)Comparative: It gathers information from organisms, systems, places or from any source, to compare them using also a control group. But, there is no imposed treatment because it is not ethical or because it is not possible. So, the treatment is only observed.Experiment: As its names says, it uses an experimental test designed to study some phenomena, where variables are controlled so the treatment is not only observed as the comparative method. Then those variables are measured to collect information or evidence that supports or not a previous hypothesis and is used to assess theoretical knowledge. The independent variable is manipulated while the dependent variable is measured. This type of scientific investigation comes from experimentation.Please help!!!!!!!!!
Answer:
Explanation:
enzymes i think
Answer:
B
Explanation:
enzymes
Cells regulate chemical reactions through the use of proteins called enzymes, which are biological catalysts that help overcome activation
nobody can answer this by their own part 1
Most desert streams are depleted before reaching the ocean due to _____.
Answer:
evaporation and soil infiltration
Explanation:
A student wants to illustrate the number of each different bird species that migrates south in winter. Which type of chart/graph would be the most appropriate to use?
a
Pie Chart
b
Bar Graph
c
Line Graph
Answer:
bar graph
Explanation:
A bar graph
You want to show that there is no connection between one species and another.
The line graph will do exactly the opposite. It will imply that the line joining 2 points gives some connection between one point and the next point.
The Pie chart is usually used to compare one number size with a another, like the total number of Covus 19 by state each state close to the other. It is not a good choice because California (for example) might have the most number of cases of the virus but it also has the largest population. You might use the pie chart by converting it to %s, but what would that give you, and how could you use it.
Define power and explain how to determine power. (4 poi
Answer:
Power is the rate of doing work
Power = work done/ time taken
Explanation:
What helps water move across the
membrane quicker?
Answer:
The sell membrane
Explanation:
Hope it helped
Answer:
A channel protein
Explanation:
A channel protein, a type of transport protein, acts like a pore in the membrane that lets water molecules or small ions through quickly. Water channel proteins (aquaporins) allow water to diffuse across the membrane at a very fast rate. Ion channel proteins allow ions to diffuse across the membrane.
Which of the following is a biotic factors in an ecosystem? O sunlight O nutrients in soil and water O precipitation O microorganisms
Answer:
microorganisms
Explanation:
Biotic factors include fungi,algae,bacteria etc.
While, Abiotic factors include soil, water ,sunlight and minerals
Answer:
[tex]\boxed {\tt D. \ Microorganisms}[/tex]
Explanation:
A biotic factor is a living thing in an ecosystem. For example: deer, rabbits, grass and trees are all biotic factors.
An abiotic factor is a nonliving thing in an ecosystem. Some examples include rocks, soil, and water.
Let's examine our answer choices.
Sunlight, nutrients, and precipitation are all nonliving, so they are abiotic factors. They can't be the correct choice.
That leaves: microorganisms. Microorganisms are very tiny organisms, like bacteria and amoebas. They are biotic factors, so the correct choice is D. microorganisms
I need help please!!
Answer:
Prokaryotes and Eukaryotes are two types of cells with similarities and differences. Eukaryotes are plant cells and animal cells. They are mostly found in multi-cellular organisms. Prokaryotes are usually single-celled organisms and have a tail. Those are the examples that I remember, but there are way more similarities and differences. I hope this helped!!
Which process begins the formation of sedimentary rock?
the movement of sediment
the cementation of rock sediment
the breakdown of rock into sediment
the buildup of sediment in one location
Answer: C
Explanation:
Because sedimentary rocks have layers and are made of of those layers which are made up of the breakdown of rock into sediment
Name structure(s) indicated by circle
1) Which of the following types of heterotrophs eat other animals?
A. omnivores
B. herbivores
C. carnivores
Answer:
A & C (Omnivores and Carnivores) eat other animals.
Answer:
A and c
Explanation:
heterotrophs eat other animals?
. omnivores and carnivores
Pls helpppp
Word Bank
protons neutrons
nucleus mass atom electron
CDD2E2 large small electron cloud electrons
small
more
electrical
same
А
consists of the following subatomic particles known as
a or create
and
The
of the atom
can be determined from the number of
and neutrons.
as done
have a positive charge, and
your work
have a negative charge. When an atom has the same number
of protons and electrons, then the atom does not have a
charge. An atom also has
that are located on the outside of
the
This area is known as the
The
Comento
mass of the
is smaller than the mass of the protons and
1. Nucleus
2.Proton
3. Neutron
4. Mass
5. Proton
6 Proton
7 Electron
8. Electrical
9. Electrons
10 Nucleus
11 Cloud
12 Electrons
13 Neutrons
2.
4.00
POOZE 1
nucleus outside smallest inside
electrons neutral element neutrons
largest
atom
Atoms are the smallest unit of an
Within the atom is a
which is the center of the atom. The
and
neutrons are located within the
The
are outside the nucleus. The neutron has a
charge. A helium atom is the
unit of an
element. The element helium has a mass of
A helium atom has
protons and
neutrons. The electrons are
located on the
of the
Answer:
1) element
2) nucleus
3) protons
4) nucleus
5) electrons
6) neutral
7) smallest
8) 4.00
9) 2
10) 2
11) outside
12) nucleus
Explanation:
i got help from my brother and mom btw lol.....
Which statement describes our Solar System?
O A. The Solar System is made of a very large collection of stars, gas, and dust bound together by gravity.
OB. The Solar System is made of a large planet with moons and other satellites in orbit around the planet.
O C. The Solar System is made of a group of planets orbiting at various distances around a large, central star.
O D. The Solar System is made of a group of galaxies and intergalactic gases bound together by gravitational attraction.
Answer:
B
Explanation:
Which eukaryotic kingdoms could be made up of multicellular organisms
Answer:
the inside
Explanation:
what is the amino acid responsible for increasing bone length
Answer:
alanine, arginine, glutamic acid, glycine, and proline—may play a role in bone health, principally through improved production of insulin and insulin‐like growth factor 1 and the synthesis of collagen and muscle protein
Explanation:
Which feature do amber fossils have that mold fossils do not?
O preserved soft tissue
O organisms turned into rock
O solid copies of the original organism
O impressions of hard tissue left by organisms
Answer: preserved soft tissue
Explanation: just took the test!
The feature do amber fossils have that mold fossils do not preserved soft tissue. Thus, option A is correct.
What are fossils?
The fossil can be defined as the compression of the animal, plant or some organism that was living. It is compressed by the rocks or or settled in the water bodies in the form of sediments. The fossil residues have some of the carbon left in it.
This carbon is estimated by carbon dating in order to get the age of the fossil.The preserved fossils have carbon residue left which can be used as a source of information.
There are several types of the connective tissues: bones, ligaments, tendons, cartilage, and adipose tissue. In the foot, among all connective tissues, ligaments and tendons are the most abundant types. Ligaments and tendons mostly consist of densely packed collagen, which is the main structural protein of the connective tissues.
Therefore, The feature do amber fossils have that mold fossils do not preserved soft tissue. Thus, option A is correct.
Learn more about amber fossils on:
https://brainly.com/question/13175037
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Which event is an example of a living thing responding to a stimulus?
A. A rock makes a loud sound as it falls down a cliff.
B. The temperature rises during the day.
C. The wind blows the roof off a house during a storm.
D. A houseplant grows toward the window.
Answer:
D. A houseplant grows toward the window.
Explanation:
All of the other answers are examples of nonliving things. A houseplant, however, is alive, and moves towards the window because it can receive more light.
What organisms, other than bacteria, are able to perform nitrogen fixation?
a.
Viruses
c.
Algae
b.
Trees
d.
Protists
Answer:
Algae is able to perform nitrogen fixation.
Answer:
The answer is C.
Explanation:
I just took the test and the answer was c.
Identify characteristic is used to determine whether an organism is a first or second level consumer?
Answer:
i don't understand
Explanation:
kkkkkkk
Water molecules being attracted to other molecules (not water) is an example of?
Answer:
In cohesion, water molecules are attracted to each other (because of hydrogen bonding), keeping the molecules together at the liquid-gas (water-air) interface, although there is no more room in the glass.
what follows a first quarter moon but comes before a full moon