Answer: The nucleus
Explanation: It directs the cell's activities in the plant and animal cells.
The part whose main job is to direct a plant cell's activities by sending instructions to different parts of the cell is the nucleus. It directs the cell's activities in the plant and animal cells.
What is the short definition of a plant cell?
Plant cells are eukaryotic cells with a genuine nucleus and particular organelles to carry out particular tasks. Plant cells do, however, include several organelles that are unique from those seen in other eukaryotic cells.
Roots, stems, leaves, flowers, and reproductive structures are only a few of the major classes of cells and tissues that are formed when plant cells differentiate from undifferentiated meristematic cells, which are similar to the stem cells of animals. Nucleus part main job is to direct a plant cell's activities by sending instructions to different parts of the cell.
Therefore, The part whose main job is to direct a plant cell's activities by sending instructions to different parts of the cell is the nucleus. It directs the cell's activities in the plant and animal cells.
To know more about plant cells visit:
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what are some of the limitations of science and scientists
Answer:
a major limitation would be funding for projects
critical thinking scientist can determine the age of a substance using a method that compares the amount of different forms of carbon atoms present in a substance. is this method more useful for organic substances or organic substances explain
Answer:
organic substances
Explanation:
define air mass in your own words.
Answer:
an air mass is a huge body of air in the lower atmosphere that has similar temperature, humidity, and air pressure at given height.
Convection currents are powered by:
A. Heat
B. Motion
C. Pressure
D. Density
If you’re gonna guess, do not bother commenting
7th grade Science *Earth
PLEASE Help me on these questions from the movie osmosis jones
9. What causes an increase in nasal secretions?
11. How does the body detect foreign invaders?
13. Explain the defense mechanism of Osmosis Jones.
17. How and where was the antihistamine disposed of?
19. What kind of WBC is Osmosis Jones?
23. What did Osmosis Jones retrieve to save the Father?
24. What is the moral of the story?
Answer:
9. Infection
19. He's a lymphocyte
23. I think Immunity
24. The moral of the story is to take care off your body even if you don't feel motivated too
(ik this isn't all of the questions answered but i hope that some of these help!)
Scientists have observed many types of tropical fish moving beyond their traditional ocean ranges into waters that have historically been more temperate. These fish compete for food with native fish, consuming much from the kelp forests and beds of sea grass. The expansion of the ranges of tropical fish was most likely caused by — *
A-global droughts that raise the salt concentration of ocean waters
B-the rising temperatures of ocean waters
C-agricultural runoff that contributes to dead zones in the ocean
D-acid rain pollution that lowers the pH of ocean waters
Answer:
Raising Temps
B
Explanation:
what is heat?write with its example
Answer: I look it up bc ihnc ...Heat is the form of energy that is transferred between systems or objects with different temperatures (flowing from the high-temperature system to the low-temperature system). Also referred to as heat energy or thermal energy. Heat is typically measured in Btu, calories or joules..
Explanation:
Answer:
i took a screenshot of the answer :)
What is the energy change taking place when plants make food in the presence of sunlight?
Potential energy is transformed into kinetic energy.
Kinetic energy is transformed into potential energy.
Chemical energy is transformed into radiant energy.
Radiant energy is transformed into chemical energy.
Answer:
radiant energy is transformed into chemical energy
Explanation:
sunlight is ntg but radiation (UV), Iit falls on leafs surface and with the help of photosynthesis leaf converts radiation to chemical energy
Answer:
The answer would be D
Explanation:
Radiant energy is transformed into chemical energy
( ENVIRONMENTAL SCIENCE DUE TODAY)
Some people argue that because Earth's resources are ultimately limited, nonstop economic growth is
A. not a problem
B. inevitable.
C. not sustainable.
D. highly desirable.
Answer:
Highly Desirable. DExplanation:
Hope this is correct. Good luck.Cells divide at different rates. Skin cells divide __________. Liver cells divide ____________. Bone marrow, stomach and intestine lining cells divide _____________.
a. never, continuously, sometimes
b. very often, sometimes, continuously
c. continuously, sometimes, never
d. sometimes, never, continuously
Question 2
What are the 2 key molecules that control and coordinate the cell cycle?
a. DNA and RNA
b. CDK and Cyclin
c. Cyclin and mitochondria
d. Apoptosis and CDK
Question 3
A cell dies and the cell next to it enters G1 phase. Which activity would happen next?
a. Chromosome duplication
b. Cell destruction
c. Cell growth
d. Chromosome separation
Question 4
At the end of G1 in Checkpoint 1, what 2 things are checked in order for the cell to proceed into the S phase1?
a. cell growth and DNA check
b. cell growth and chromosome duplication
c. cell division and DNA check
d. cell growth and cell division
Question 5
At the end of S phase in Checkpoint 2, what 2 things are checked in order for the cell to proceed into the G2 phase?
a. chromosome duplication and cell division
b. cell growth and chromosome duplication
c. cell division and DNA check
d. cell growth and cell division
Question 6
At the beginning of mitosis in Checkpoint 2, what is checked in order for the cell to proceed mitosis?
a
cell growth
b
cell division
c
chromosomes are attached to spindles
d
chromosome duplication
Question 7
What happens when the cell “supervisors” CDK and Cyclins do not work correctly?
a
The cell can become cancerous.
b
The cell is completley normal.
c
Damaged cells are destroyed.
d
The damage in the cell is repaired.
Question 8
Which of these must occur during S phase of the cell cycle so that two daughter cells can be produced during M phase?
a
The DNA must be replicated.
b
The cell membrane must be expanded.
c
The cytoplasm must be separated.
d
The chromosomes must be joined.
Question 9
This final process of cellular division where the cytoplasm is divided into two cells is called
a
Cytokinesis
b
Meiosis
c
Mitosis
d
Interphase
Question 10
Which of the following activities occurs in between the two gap phases (G1 and G2)?
a
Replication of DNA
b
Growth of the cell
c
formation of mitotic spindle
d
breakdown of nuclear membrane
Question 11
If a dog (canis familiaris) has 78 chromosomes in each of its body cells, how many chromosomes will be in each daughter cell after mitosis?
a
78
b
39
c
26
d
156
Question 12
The stages of mitosis occur in which of the following orders?
a
A-P-M-T
b
T-A-M-P
c
P-M-A-T
d
M-T-P-A
Question 13
Before DNA can replicate the DNA molecule separates into two strands, which are then used to construct 2 identical strands of DNA. This process ensures that the
a
parent cells use little ATP
b
mitochondria are genetically identical to chloroplasts
c
cytoplasm is in equillibrium
d
daughter cells are genetically identical to parent cells
Question 14
Which of the following organelles organizes the movement of chromosomes during mitosis?
a
endoplasmic reticulum
b
lysosome
c
centriole
d
peroxisome
Question 15
G1 Phase, S Phase, and G2 Phase are all parts of -
a
Mitosis
b
Interphase
c
Cytokinesis
d
Telophase
Answer:
umm sorry umm i just forgot what was the answer
Explanation:
what are two reasons why a lizard is living
Can u guys help me answering the following Test Guide and using complete sentences
TEST: CELLS AND CELL PROCESSES
REVIEW WORKSHEET
WHAT DO I NEED TO KNOW?
ROBERT HOOK’S CONTRIBUTION TO CELL BIOLOGY__________________
3 PARTS OF THE CELL THEORY __________________________________________________________________________________________________________________________
MAIN DIFFERENCE BETWEEN EUKARYOTIC AND PROKARYOTIC CELLS __________________________________________________________________________________________________________________________
WHAT IS TRUE ABOUT ALL BACTERIA?___________________________________________________
DIFFERENCE BETWEEN LYTIC AND LYSOGENIC CYCLE OF VIRUS REPRODUCTION _______________________________________________________________________________________________________________________________________________________________________________________
NAMING BACTERIA STREPTO VS. STAPHLYO
MOST IMPORTANT JOB OF ALL BACTERIA ________________________
BE FAMILIAR WITH PHOSPHOLIPID ORIENTATION IN FLUID MOSAIC MODEL OF CELL MEMBRANE……WHAT IS PHOSPHATE HEAD ATTRACTED TO? THE LIPID TAIL? __________________________________________________________________________________________________________________________
FUNCTION OF CHOLESTEROL IN THE MEMBRANE ___________________________________________________________
DIFFERENCE BETWEEN CHROMATIN AND CHROMOSOME __________________________________________________________________________________________________________________________
ORGANELLES IN PLANT CELLS NOT SEEN IN ANIMAL CELLS _____________________________________________________________
YOU MUST BE FAMILIAR WITH ALL ORGANELLES ASSOCIATED WITH PLANT AND ANIMAL CELLS AND HAVE AN IDEA ABOUT THEIR FUNCTION
THE RULE FOR OSMOSIS IN TERMS OF SOLVENT AND SOLUTE __________________________________________________________________________________________________________________________
MOVING DOWN A CONCENTRATION GRADIENT MEANS WHAT ____________________________________________________________
WHAT FACILIATED DIFFUSION IS __________________________________________________________________________________________________________________________
CHARACTERISTICS OF PASSIVE AND ACTIVE TRANSPORT AND THE SODIUM POTASSIUM PUMP AS AN EXAMPLE OF ACTIVE TRANSPORT______________________________________________________________________________________________________________________________________________________________________________
HYPERTONIC VS. HYPOTONIC VS. ISOTONIC SOLUTIONS __________________________________________________________________________________________________________________________
CYTOLYSIS, CRENATION, PLASMOLYSIS_______________________________________________________________________________________________________________
ENDOCYTOSIS, PHAGOCYTOSIS, PINOCYTOSIS, EXOCYTOSIS _______________________________________________________________________________________________________________________________________________________________________________________
EMBRYONIC VS. ADULT SOMATIC STEM CELL GENERAL CHARACTERISTICS______________________________________________________________________________________________________________________________________________________________________________________________________________________________________
SOMATIC CELLS VS GAMETES _____________________________________
ANOTHER NAME FOR A FERTILIZED EGG_______________________
CHARACTERISTICS OF GERM LAYERS: ECTODERM, MESODERM, AND EDODERM _______________________________________________________________________________________________________________________________________________________________________________________
PROBLEM SOLVING REGARDING TONICITY SOLUTIONS: CALCULATING PERCENTATGES OF SOLVENT AND SOLUTE BOTH INSIDE AND OUTSIDE THE CELL; DETERMINING THE MOVEMENT OF WATER WITH ARROWS, LABELING THE SOLUTION
Answer:
Robert Hooke is known for the first use of the word cell in the sense of a basic unit of organisms (describing the microscopic cavities in cork)
Plants are made of cells, Animals are made of cells, Cells produce other cells.
Eukaryotic have a nucleus meanwhile prokaryotic lacks of it.
Bacteria are prokaryotes
Cholesterol stabilize the cell membrane, less fluid at higher temp and less solid at lower temp.
Chromatin consists of the unravelled condensed structure of DNA for the purpose of packaging into the nucleus whereas chromosome consists of the highest condensed structure of the DNA doublehelix for the proper separation of the genetic material
Plant cell have cell wall, chloroplasts, plastids, and a central vacuole
Refers to going from regions of high concentration of some entity to regions of low concentration, and such movement generally occurs spontaneously,
Facilitated diffusion is the diffusion of molecules assisted by transport proteins
Passive transport no needs energy, move molecules trough phospholipid bilayer
Active transport needs energy, move molecules trough membranes
Endocytosis engulf substances and form vesicles (into the cell) (active transport)
Phagocytosis cell eats solid particles or big substances
Pinocytosis is the cell drinking, liquid substances
Exocytosis vesicles move through the plasma membrane, release the contents (outside the cell) (active transport)
Animal and plant cell organelles: nucleus, nuclear membrane, nucleoplasm, nucleolus, cillia, flagella, Rough Endoplasmic Reticulum, Smooth Endoplasmic Reticulum, Golgi apparatus, plasma membrane, vesicles, lysosomes, peroxisomes, centrioles, mitochondria, cytoplasm, cytosol, cytoskeleton, ribosomes, vacuoles, cell wall, chloroplasts.
Another name for a fertilized egg is zygote
Hope it helps :)
What keeps cells from growing indefinitely?
Answer:
Apoptosis
Explanation:
Apoptosis is a process that some cells go through when their embryo divides. It is programmed cell death. Apoptosis can help protect organisms from developing cancerous growths, or the uncontrolled growth/division of cells.
Well Cells are limited in size because the outside (the cell membrane) must transport the food and oxygen to the parts inside. As a cell gets bigger, the outside is unable to keep up with the inside, because the inside grows a faster rate than the outside.
Jigar knows that there is a pest destroying crops in his field. He wants to find out where the insect has spread in his field. The circles marked in the boxes represent the plants that are chosen as samples. Which pattern for collecting 10 plants would provide the best data on the spread of this insect?
Answer:
D
Explanation:
Place the following events in their proper sequence.
Answer:
which events tho?
3 examples of non-living things that can disrupt homeostasis
Answer: This is what I could find on it.
There are many external factors that can disrupt homeostasis. Disease, toxins, and pathogens are just a few examples.
Some diseases can have external causes, like a toxin or pathogen invading the body. Toxins are products of plants, animals, fungi, or bacteria that hurt cells in some way.
Explanation:
sorry if that's not what you need
Which of the following parts of a Chick-Fil-A meal is an example of a lipid?
The chicken in the chicken sandwich
The peanut oil used to fry the waffle fries.
The potato in the waffle fries
The bread in the sandwich
What does it mean to translate something?
(No copy and paste answers I’ll give you Brainliest)
Answer:
When creating proteins from mRNA templates .
Explanation:
The nucleotide sequence on the RNA is translated into amino acid sequence of proteins. This is carried out by ribosomes.
‼️PLEASE HELP‼️
what would happen if your body failed to return to normal after exercising? explain.
Answer: if your question has to do with homeostasis here you go! i hope this helps:)
In order for a body to work optimally, it must operate in an environment of stability called homeostasis. When the body experiences stress—for example, from exercise or extreme temperatures—it can maintain a stable blood pressure and constant body temperature in part by dialing the heart rate up or down.
The loss of too much blood may lead to circulatory shock, a life-threatening condition in which the circulatory system is unable to maintain blood flow to adequately supply sufficient oxygen and other nutrients to the tissues to maintain cellular metabolism.
What is the primary (main) function of lipid molecules in the plasma membrane?
- To provide an energy source for most cell activities.
- To provide a substance for enzyme activity in the cell.
- To provide a place to collect and store waste products within the cell.
-To provide a barrier to the movement of substances in and out of the cell.
Answer:
to provide a barrier to the movement of substances in and out of the cell
Explanation:
Lipid molecules in the plasma membrane form a lipid bilayer which creates a semi-permeable barrier between the inside and the outside of the cell. Water and small molecules can cross the membrane. Other large molecules like ions cannot.
Hope that helps.
Which endocrine gland is indicated by the arrow?
pineal gland
adrenal gland
hypothalamus
ovary
Answer:
adrenal gland
Explanation:
Answer:
adrenal gland
Explanation:
HELP ASAP, ITS TIMED
Bacteria and fungi are considered as:
Select one:
a. omnivore.
b. decomposer.
c. herbivores.
d. carnivore
Answer:
B
Explanation:
Which of the following types of particles found in an atom has no charge?
Answer:
neutron has no charge because it is equal in mass
The white blood cells can be compared to the army and soldiers of our country. Explain the reason in about 3-4 lines.
Answer:
Please Mark as Brainliest
Explanation:
The white blood cells provide immunity to our body. They help in fighting against diseases, infections, allergies, and foreign particles. These cells keep our bodies safe and healthy, much like the soldiers of a nation.
what is sustainable development
Answer and Explanation
__________________________________________________________
According to UNESCO,
Sustainable development is the overarching paradigm of the United Nations. The concept of sustainable development was described by the 1987 Bruntland Commission Report as “development that meets the needs of the present without compromising the ability of future generations to meet their own needs.”
__________________________________________________________
There are four dimensions to sustainable development – society, environment, culture, and economy – which are intertwined, not separate. Sustainability is a paradigm for thinking about the future in which environmental, societal, and economic considerations are balanced in the pursuit of improved quality of life. For example, a prosperous society relies on a healthy environment to provide food and resources, safe drinking water, and clean air for its citizens.
__________________________________________________________
One might ask, what is the difference between sustainable development and sustainability? Sustainability is often thought of as a long-term goal (i.e. a more sustainable world), while sustainable development refers to the many processes and pathways to achieve it (e.g. sustainable agriculture and forestry, sustainable production and consumption, good government, research and technology transfer, education and training, etc.).
__________________________________________________________
Hope this helps! <3
__________________________________________________________
Answer:
the development which meed the future need without compromising present generation need is called sustainable developments.
Explanation:
hopeit helps
Whats The Answer Giving Brainliest To first Correct AnSwEr:D
...
Answer:
I already answered another question exactly like this from you, but here's the answer again: A: Ice Crystals.
Explanation:
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
Energy conversion within a plant cell would be limited most severely by removal of the cell's - A mitochondria B chloroplasts C ribosomes D endoplasmic reticulum
Answer:
The answer is Mitochondria. I took the test and that's the correct answer.
Energy conversion within a plant cell would be limited most severely by removal of the cell's by mitochondria.
What is mitochondria?Mitochondria are membrane-bound organelles (mitochondrial, singular) that produce most of the chemical energy required for biochemical reactions in cells.
The chemical energy produced by mitochondria is stored in a small molecule called adenosine triphosphate (ATP).
Mitochondria contain their own small chromosomes. In general, mitochondria, and thus mitochondrial DNA, are inherited only from the mother.
Therefore, Energy conversion within a plant cell would be limited most severely by removal of the cell's by mitochondria.
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write a five sentence paragrgh explaining the cell cycle
Answer:
The cell cycle is a cycle of stages that cells pass through to allow them to divide and produce new cells. It is sometimes referred to as the “cell division cycle” for that reason.
New cells are born through the division of their “parent” cell, producing two “daughter” cells from one single “parent” cell.
Daughter cells start life small, containing only half of the parent cell’s cytoplasm and only one copy of the DNA that is the cell’s “blueprint” or “source code” for survival. In order to divide and produce “daughter cells” of their own, the newborn cells must grow and produce more copies of vital cellular machinery – including their DNA.
The two main parts of the cell cycle are mitosis and interphase.
Mitosis is the phase of cell division, during which a “parent cell” divides to create two “daughter cells.”
The longest part of the cell cycle is called “interphase” – the phase of growth and DNA replication between mitotic cell divisions.
Both mitosis and interphase are divided into smaller sub-phases which need to be executed in order for cell division, growth, and development to proceed smoothly. Here we will focus on interphase, as the phases of mitosis have been covered in our “Mitosis” article.
Interphase consists of at least three distinct stages during which the cell grows, produces new organelles, replicates its DNA, and finally divides.
Explanation:
from online, rephrase this use as reference
Which answer describes "budding"?
simple cell division
spore develops on outer membrane like a bump
colonies of cells stick together and grow
cytoplasm and nucleic material move into a lump on the cell wall
Answer:
simple cell division, I think so
Whats The Answer Giving Brainliest To first Correct AnSwEr:D
Answer:
the answer is A: Ice crystals
Explanation:
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!