Answers
Answer:
1. Ribosomes
10. Osmosis
11. Cell membrane
12. Solvent
13. Cytoplasm
15. Organ
16. Permeable
17. Specialized cells
18. Solute
19. Active transport
2. Electron microscope
3. Organelles
4. Mitochondria
5. An Organ system
6. Optical microscope
7. Tissue
8. Concentration gradient
9. Nucleus
14. Diffusion
Related Questions
3. Which tool do scientists use to classify plants that is based
on a series of paired characteristics?
observation power
dichotomous key
sketch book
plant classification
Answers
clouds form by the condensation of...
A: Water vapor
B: dust or dirt
C: heat
D: rain
Answers
Answer:
a
Explanation:
clouds form when water rises as water vapor and cools and condenses into clouds
An archer shot a 0.06 kg arrow at a target the arrow accelerated at 5,000 m/s squared to reach a speed of 50.0 m/s as it is left the bow.During this acceleration what was the net force to the nearest newton?
Answers
Answer:
the net force to the nearest newton is 300 N
Explanation:
The computation of the net force to the nearest newton is shown below:
According to the newton second law of motion, the force is proportional directly to the change rate in momentum
So,
Resulted force = mass × acceleration
F = 0.06 kg × 5,000 m/s
= 300 N
Hence, the net force to the nearest newton is 300 N
Answer:
300 N
Explanation:
Sexual reproduction in animals depends on the production of gametes.
Which of these processes produces gametes in animals? *
Mitosis
Fertilization
O Meiosis
Binary fission
Answers
The process that produces gametes in animals is meiosis.
What is MeiosisMeiosis is a specialized type of cell division that occurs in the reproductive cells, or germ cells, of animals. It involves two rounds of cell division, resulting in the production of four haploid daughter cells, each with half the number of chromosomes as the parent cell.
During meiosis, the genetic material is shuffled and recombined through processes such as crossing over and independent assortment. This genetic variation contributes to the diversity of offspring produced through sexual reproduction.
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Identify the triangle that contains an acute angle for which the sine and cosine ratios are equal.
B А
B
A
40°
450
22
60°
45°
30
50
B
B
68
A
А
Answers
50 i think
Explanation:
be cause a right angle is 90 so if the acute angle is smaller it should be a smaller number but its hard to say without an image to help us out
HELP PLS!!!!!!
Polygenic traits are when one phenotype (trait) is controlled by several different genes. The provided example shows human skin color being controlled by 3 different genes. Describe one other trait (don't use skin color!) in any animal that you think could be a Polygenic trait, and explain why you think that it is (HINT: I did mention an example in class yesterday... lets SEE if you remember!).
Answers
which phase of the cell cycle do cells go to when they are not ready to divide?
Answers
Answer:
Interphase
Explanation:
Answer:
interphase
Explanation:
I hope this helps!!!
Which of the following is true of ecological succession? A-pioneer organisms move into new communities first. B-primary productivity decreases as succession proceeds. C-secondary succession takes place within new communities with no previous soil. D-all of the above.
Answers
Answer: Pioneer organisms move into new communities first.
Explanation:
In the early 1900s, Thomas Hunt Morgan was among the first scientists to 2 points
contribute to the chromosome theory of heredity. Morgan's investigations
into heredity in fruit flies led him to propose that the event represented in
the diagram sometimes occurs. *
Which statement about the event represented in the diagram is valid?
The event represents RNA translation in the smooth endoplasmic reticulum.
The event takes place in bacterial cells.
The event produces genetically identical daughter cells.
The event provides Ametic diversity in eukaryotic cells.
Answers
Answer:
c
Explanation:
Compared with mitosis, the process of meiosis results in daughter cells that are-
A. haploid cells with the same number of chromosomes as the parent cells
B. haploid cells with a smaller number of chromosomes than the parent cells
C. diploid cells with a smaller number of chromosomes than the parent cells
D. diploid cells with the same number of chromosomes as the parent cells
Answers
Answer:
Explanation:
eAnswer: Haploid cells with a smaller number of chromosomes than the parent cell
Explanation: meiosis results in four daughter cells which are haploids. Haploids have half the number of chromosomes of the diploid parent cell.
During the late Precambrian era, enough
a
escaped from volcanoes to begin
period of
global warming.
Answers
Answer:
Eventually, enough CO2 escaped from volcanoes to begin a period of global warming; melting opened a great variety of new niches. When CO2 levels were high, they created a greenhouse effect. More heat was trapped on Earth's surface, and the climate became warmer.
Explanation:
Explain how the structure of a phospholipid affects the functionality of a cell membrane.
Answers
The fundamental structure of the membrane is the phospholipid bilayer , which forms a stable barrier between two aqueous compartments . ... Proteins embedded within the phospholipid bilayer carry out the specific functions of the plasma membrane , including selective transport of molecules and cell - cell recognition .
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10. A mutation in which types of cells would only affect the organism and not future generations?
Answers
Answer:
Somatic mutations are mutations that occur in body cells, that is the cells that do not make gametes. These mutations are not passed on to further generations; for example, if a mutation that changes a gene in a skin cell would not affect your children because skin cells don't produce gametes.
Explanation:
Answer:
Explanation:
Explanation; Somatic mutations are mutations that occur in body cells, that is the cells that do not make gametes. These mutations are not passed on to further generations; for example, if a mutation that changes a gene in a skin cell would not affect your children because skin cells don't produce gametes.
describe the meaning of the phrase "cells are the basic unit of structure in all organisms" in your own words.
Answers
Answer:
Each organism has a basic unit of structure which are cells.
Explanation:
;)
Cells are regarded as the fundamental units of life in part because they come in discrete and easily identifiable packages.
What are cells?Cells are the fundamental building blocks of all life. Trillions of cells make up the organisms' body.
They support the body's structure, absorb nutrients from food, convert those nutrients into energy, and perform specialized functions.
Nucleic acids, proteins, carbohydrates, and lipids are the four major classes of organic molecules found in all cells.
Cells are regarded as the fundamental units of life in part because they come in discrete and easily identifiable packages.
Like the walls of a house, all cells are surrounded by a structure called the cell membrane, which serves as a clear boundary between the cell's internal and external environments.
Thus, cells are the basic unit of structure of all organisms.
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According to the geological time scale,
mammals
evolved after the first insects evolved.
Answers
Answer:
after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago.
Explanation:
the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.
Answer:
You are correct
Explanation:
According to the geological time scale, mammals evolved after the first insects evolved.
Describe the steps to complete a dihybrid
cross.
Answers
Answer:
1. Write out your key in terms of what is dominant and what is recessive.
2. Determine the genotypes of each parent and write the cross.
3. Figure out what kind of gametes each parent may produce.
4. Set up a Punnett square for your making.
Explanation:
A dihybrid cross must be a 4 x 4 square which two variables for each square.
if a blue eyed offspring is formed from black eyes parents, what type of character is the blue eye dominant or recessive? expalin with the help of a chart
Answers
Answer:
Blue Eyes Are: Recessive
Explanation:
The brown eye form of the eye colour gene (or allele) is dominant, whereas the blue eye allele is recessive. If both parents have brown eyes yet carry the allele for blue eyes, a quarter of the children will have blue eyes, and three quarters will have brown eyes. I hope this helps :) Good luck on your assignment!!!
DIRECTIONS: Indicate whether each statement is TRUE (T) or FALSE (F):
1. _____ Carbon dioxide (CO2) is a greenhouse gas
2. _____ Methane is a greenhouse gas
3. ______ As icebergs melt, they cool off the earth, slowing climate change
4. ______ Ocean pollution from trash and oil spills is making climate change worse
5. ______ Factories that burn coal to produce electricity emit (give off) CO2
6. ______ Our increased appetite for meat has increased climate change
7. ______ Climate change can happen naturally, without human activity
8. ______ Wind, solar, and hydroelectric power do not cause climate change
9. ______ Alternative forms of energy tend to be more expensive than burning fossil fuels
Please do not use an answer that doesn't make sense! I put 25 points because this is a long question
Answers
Answer:None PLEASE MAKE MORE SENSE MY GOSH
Explanation:NONE
Carbon dioxide (CO2) is a greenhouse gas. It is true
Methane is a greenhouse gas. It is true.
As icebergs melt, they cool off the earth, slowing climate change. It is true.
Ocean pollution from trash and oil spills is making climate change worse.It is true.
Factories that burn coal to produce electricity emit (give off) CO2. It is true.
Our increased appetite for meat has increased climate change. It is true.
Climate change can happen naturally, without human activity. It is false.
Wind, solar, and hydroelectric power do not cause climate change. It is false.
Alternative forms of energy tend to be more expensive than burning fossil fuels. It is true.
What is fossil fuel?
Fossil fuels has been result of the biological processes as heat and pressure from the Earth's crust that decomposed these organisms into one of the three main kinds of fuel and these are oil which is also called petroleum, natural gas, or coal.
The origin of the fossil fuels has the anaerobic decomposition of the buried lifeless organisms, that containing natural molecules is created through photosynthesis. The conversion from those materials to excessive-carbon fossil fuels commonly require a geological method of millions of years.
Biological methods are defined as the processes that are very crucial for an organism to live, as well as that shape its capacities for interacting with its surroundings. The organic processes has been made of many chemical reactions or the different events that use to concerned within the persistence as well as the transformation of lifestyles forms.
Therefore, Biological approaches either aerobic or the anaerobic which is based upon the environmental necessities of the microbial consortia.
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Drop a paper a piece of thermocol and a piece of plastic from a height of 10 to 15 feet not the time for each object to hit the ground why does paper take more time than thermocol and thermocol more than the plastic piece make the paper to fell down in such a way that it should hit the ground before all of them and how does it happen
Answers
Answer:
The paper takes more time to fall than the piece of thermocol because it experiences a greater air resistance than the thermocol.
The thermocol takes more time than the piece of plastic because it experiences a greater air resistance.
The piece of paper can be made to fall faster than all of them and hit the ground faster by crumpling it and then giving it an initial velocity by throwing it downwards.
Explanation:
Objects falling freely due to the force of gravity alone are accelerated downwards at a constant value 9.8 m/s². This acceleration due to gravity is constant for all objects on the earth's surface and is independent of the mass of the objects.Therefore, when objects are release from the same height and allowed to fall freely under gravity, they are accelerated downwards to the same extent and are expected to hit the ground at the same time. However,due to the resistance of the air through which the objects are falling, they may hit the ground at different times depending on the shape of the falling objects.
Objects which have a greater surface area or volume per unit mass will experience a greater air drag or resistance and therefore, will take a longer time than objects of similar mass with a smaller volume or surface area.
The paper has a greater surface area per unit mass than the piece of thermocol, therefore, it takes more time to fall than the piece of thermocol because it experiences a greater air resistance than the thermocol.
The thermocol has a greater surface area per unit mass than the piece of plastic, therefore, it takes more time than the piece of plastic because it experiences a greater air resistance.
The piece of paper can be made to fall faster than all of them and hit the ground faster by crumpling it, thereby reducing its surface area per unit mass it and then giving it an initial velocity by throwing it downwards.
What was the laws of heredity
Answers
Answer:
Mendel's Laws of Heredity are usually stated as:
1) The Law of Segregation: Each inherited trait is defined by a gene pair. Parental genes are randomly separated to the sex cells so that sex cells contain only one gene of the pair. Offspring therefore inherit one genetic allele from each parent when sex cells unite in fertilization.
2) The Law of Independent Assortment: Genes for different traits are sorted separately from one another so that the inheritance of one trait is not dependent on the inheritance of another.
3) The Law of Dominance: An organism with alternate forms of a gene will express the form that is dominant.
Explanation:The genetic experiments Mendel did with pea plants took him eight years (1856-1863) and he published his results in 1865. During this time, Mendel grew over 10,000 pea plants, keeping track of progeny number and type. Mendel's work and his Laws of Inheritance were not appreciated in his time. It wasn't until 1900, after the rediscovery of his Laws, that his experimental results were understood.
Waste produced by agriculture, mining, households, industry and other
human activities can end up in which of the following?*
A: Oceans
B:groundwater
C:streams and rivers
D:all of the above
Answers
6 ways of expressing standard atmospheric pressure(physical science)
Answers
6 ways of expressing standard atmospheric pressure include: millimetres (or inches) of mercury, pounds per square inch (psi), dynes per square centimetre, millibars (mb), standard atmospheres, and kilopascals.
What is the role of photosynthesis and cellular respiration in the cycling of carbon; include the biosphere, atmosphere hydrosphere and geosphere?
Answers
How are genetic relationships represented?
Answers
Answer:
Genetic relationships are analysed based on the comparison of allelic identity or differences, regardless of the number of SNPs that differ between two alleles of a gene, which simplifies the analysis.
Explanation:
3. Which enzyme do scientists use to cut genes out of strands of DNA?
DNA polymerase
DNA ligase
restriction endonuclease
RNA polymerase
Answers
Answer:
Restriction Endonuclease.
In the picture below, letter E represents:
A.substrate
B.enzyme
C.products
D.active site
Answers
Answer:
C.products is the answer.
Answer:
C. products
Explanation:
In the picture above, the letter E represents products.
During a harsh winter, the surfaces of lakes, ponds, and streams stay froren longer than usual
Why would this decrease the growth rate of deer in the area?
А
There would be less water available.
B
There would be less shelter available
C.There would be fewer hours of sunlight
D. There would be more predators in the area,
Answers
There would be less water available
What is harsh winter ?
Harsh climates or conditions are very difficult for people, animals, and plants to live in.
How Does a Harsh Winter Affect Wildlife?
A snowy winter can alter migration patterns, make foraging for food difficult and make a typical environment uninhabitable.
How do animals rely on their natural environment?
This ecosystem is its natural habitat. This is where the basic needs of the organism to survive are met: food, water, shelter from the weather and place to breed its young. All organisms need to adapt to their habitat to be able to survive.
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HELP!!!!!!!!!!!!!! And go check out my other questions
Answers
What type of organism uses energy to make its own food?
Answers
Answer:
Producers such as acacia trees and plants!
Answer:
autotroph
Explanation:
i learned this last year!
autotroph is a organism that can produce its own food using light, water, carbon dioxide, or other chemicals.Why? well because autotrophs produce their own food, they are sometimes called producers.but there are different kinds of autotrophic organisms.
hope this was helpful! ^^
5. Why do thorns and spines exist? *
O To stop animals from eating plants
To stop insects from pollinating
To stop people from looking at plants
O To help plants stay standing upright and give them their shape
Answers
Answer:
to stop animals from eating plants
Explanation:
the thorns and spines help protect the plant for example if we touch the plant it hurts same goes with animals
Answer:
A. To stop animals from eating plants
