Answer:
Well here's a few ( depends what you're talking about)
Explanation:
the discovery of fire
the invention of farming (planting seeds, then caring for and harvesting the crops)
the invention of the wheel
the invention of sails and sailing ships
the invention of gunpowder
the invention of writing
the invention of paper
the invention of printing
the discovery of the circulation of blood (how the heart pumps blood throughout the body)
the invention of the microscope and telescope
the discovery of microorganisms
the discovery that earth circles the sun
the discovery of gravity
the discovery of electricity and ways to control it
the invention of steam ships
the invention of the gasoline engine and motor vehicles (cars, trucks, etc.)
the invention of the telephone
the invention of the radio
the discovery of penicillin and other antibiotics
the invention of the computer and then the Internet
Survival is a problem which life has to adapt to evolve.
- True
-False
When listing the levels of organization in organisms from least complex to most complex, which level is just below
organs in complexity
Answer:
Organelle (oppitional, I don't put this on my paper but you can if you want), cells, tissues,
Explanation:
What is required in order to determine whether or not an object moves?
a reference point
distance
displacement
standard units
Answer:
A; a reference pointExplanation:
hope its right sorry if not
Answer:
sorry for being very late but its A) hope this helps!
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2022
Explanation:
what chemicals are the sides of the DNA ladder made of?
Answer:
The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of 4 types of nitrogen bases. Two of the bases are purines- adenine and guanine.
WhY is the cycling of Nitrogen for biological systems important
Answer:
Nitrogen is an essential nutrient for plants and a significant component of proteins, which all animals need to grow, reproduce and survive. The nitrogen cycle converts nitrogen into compounds that plants and animals can use. Humans and Animals Need Nitrogen All human tissue – muscles, skin, hair, nails and blood – contains protein.
What is the function (or role) of ATP in a cell?
Answer:
energy
Explanation:
The first phase of mitosis, in which chromosomes condense, becoming visible, the nuclear membrane dissolves, the centrosomes move to opposite ends of the nucleus, and spindle fibers form
Prophase is described as the first stage of mitosis, during which the cell begins to position itself to separate the chromatids and divide. During prophase, the nuclear envelope and nucleolus dissolve and chromosomes condense.
What is Mitosis?Mitosis is defined as the end of the cell cycle in which duplicated chromosomes separate into two new nuclei giving rise to genetically identical cells in which the total number of chromosomes remains the same. That's why mitosis is also called parity division.
Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase where the prophase is the first visible stage in karyokinesis. During prophase, the nuclear envelope and nucleolus dissolve and chromosomes condense.
Thus, Prophase is described as the first stage of mitosis, during which the cell begins to position itself to separate the chromatids and divide.
Learn more about Mitosis here:
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The law of conservation of mass states that matter can/cannot be created
or destroyed, even after a chemical change
a. Can
b. Cannot
Answer:
Cannot
Explanation:
The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.
is the sequence of a dna strand is AAGCCA what are the bases on its complementary strand
What effect do keystone species have on an ecOsystem?
Keystone species maintain the local biodiversity of an ecosystem, influencing the abundance and type of other species in a habitat. They are nearly always a critical component of the local food web.
Could you tell me if the chromosomes are in the right place?
Answer:
Yes, you are correct
(04.02 LC)
Based on the cell theory, which of the following is true? (5 points)
All living and nonliving things are made of cells.
All cells are too small to be seen with the naked eye.
Small organisms have smaller cells than large organisms.
Large organisms have more cells than small organisms.
Answer:
d is the correct one :)))))
Explanation:
Answer:
i did the study guide and its D
Explanation:
Which types of organisms perform both
photosynthesis AND cellular respiration?
amoebas
animals
plants
Which event is associated with convergent boundaries?
formation of island chains
creation of mid-ocean ridges
creation of convection currents
formation of rift valleys
Answer:
I believe the answer would be creation of mid ocean ridges
Explanation:
I believe this because the other options dont sound right
Answer:
b
Explanation:
Why is it important for the body to remove waste through the skin? Check all that apply.
It helps the body stay cool.
It prevents dryness and cracking.
It is faster than removing waste through other means,
It helps maintain stability and health inside the body.
It helps keep the skin protected from rain and dust.
Answer:
It helps the body stay cool; It helps maintain stability and health inside the body
How are algae cells different from the other cells?
Answer:
Although both algae and plants are photosynthetic in nature and are classified as eukaryotes (have highly differentiated cells that contain specialized structures like the nucleus), the two still differ in the following aspects: Algae can either be unicellular and multi- cellular while plants are multi-cellular
Explanation:
we are doing this in homeschool so i would know
The type of inheritance show when a red-lowering plant is crossed with a white-flowering plant and only pink flowering plants are produced is
Answer:
Incomplete Dominance :3
Answer:
Co-dominance Is the right answer.
It is when allele A and allele B are both expressed. Which leads to the fuse of red and white :)
Which sequence represents the correct order of processes that result in the
formation and development of an embryo?
a. meiosis fertilization mitosis
b. mitosis - fertilization → meiosis
c. fertilization - meiosis → mitosis
d. fertilization mitosis → meiosis
Answer:
a
Explanation:
Population dispersion is:
Three dispersion types:
Answer:
three basic patterns: they can be more or less equally spaced apart (uniform dispersion), dispersed randomly with no predictable pattern (random dispersion), or clustered in groups (clumped dispersion).
hope this helps!!:)
Explanation:
HELP ASAP
Alaskan Wood Frogs can freeze up to 60 percent of their body. The frogs build up their glucose (sugar) concentrations in tissues and organs of the frog. This
helps prevent the cells in the tissues from shrinking or dying
Which of the following BEST explains how this adaptation increases the probability the Alaskan Wood Frog will survive in this environment?
When food sources are scarce, this allows the frog to survive until more food is readily available.
Due to the large terrain of Alaska, the frog can freeze itself to preserve energy while traveling across the state.
When harsh winter conditions develop in the area, the frog can prevent the change in the environment from affecting its homeostatic processes.
As predators seek out the frog, its senses allow it to notify the internal processes to freeze. This prevents the predator from being notified there is prey
nearby
Answer:
heyyy i dont understand what ur asking
Explanation:
pls i need help fast!!
Answer:
A) Lungs
B) Trachea
C) Bronchus
D) Diaphragm and intercostal musles
E) Intercostal musles?
F) Bell Jar?
Will mark BRAINLIEST!! ONLY ANSWER IF YOU KNOW THE QUESTION!! I NED THIS ASAP!! Answer both questions
Consider, pea plants, for which green color is dominant to yellow color, and two leaves are dominant to three. A cross between two plants that are heterozygous green and heterozygous tall is completed. What is the phenotypic ratio?
9:3:3:1
1:1:1:1
1:3:3:9
9:1:3:3
Answer:1339
Explanation:
9:3:3:1 is the phenotypic ratio, a phenotypic ratio is a numerical comparison of two phenotypes that demonstrates how frequently the occurrence of one trait corresponds with another.
What is phenotypic ratio?The phenotypic ratio produced from a test cross is used by researchers to determine the gene expression for generations of an organism.
Researchers use the phenotypic ratio obtained from a test cross to determine gene expression for subsequent generations of an organism. A test cross is a genetics method for determining the genotypes and traits of an organism's offspring.
9/16 G-T- --> Green-colored and two-leaved plant
3/16 G-tt ----> Green-colores and three-leaved plant
3/16 ggT---> yellow color and two-leaved plant
1/16 ggtt ---> yellow color and three-leaved plant
Therefore, 9:3:3:1 is the phenotypic ratio, hence option A is correct.
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What can be concluded from the following data?
#1
DNA profiling of a male with Down syndrome.
#2
Karyotype of a male with a normal set of chromosomes.
#3
DNA profiling of a male with a normal set of chromosomes.
#4
Karyogram of a male with Down syndrome.
Answer:
Karyogram of a male with Down syndrome.
This is an observation trait of an organism that can make the recessive trait
Answer:
Dominant trait is observed trait of an organism that masks the recessive form of a trait is answer.
Explanation:
I hope it's helpful!
Which of the following describes stylistic techniques?(1 point)
ways to make things sound interesting
using language to add meaning or effect
ways to engage readers in literature
comparing relationships of words
Answer:
the answer is A
Explanation:
Answer:
THe GUY ABOVE IS CORRECT HOORAY WE ARE SAVED
Explanation:
what body part is the metric system based upon
Answer:
thumb
Explanation:
________________________ is enormously important to the survival of species because it allows populations to better handle environmental variables, such as weather extremes, changes in food supply, or disease.
What causes the cloud of gas and dust to condense and turn into a star?
The tremendous heat given off by the nuclear fusion process causes the gas to glow creating a protostar. This is the first step in the evolution of a star. The glowing protostar continues to accumulate mass.
hope this helps ^^
Answer:Gravity
Explanation:
Trishon placed a glass of ice cubes on the table The temperature inside the glass was 0°C Thirty minutes later the glass contained water and smaller ice cubes at a temperature of 4°C
Answer:c
Explanation:air transferred heat to the icee