Answer:
The fossils are in several areas because the animals were very widely distributed and this is how the evolution of the different species is shown in different parts of the world.
Fossils are skeletal remains of animals impregnated in stone, if these are not found, their chemical composition becomes petroleum and that is how the formation of oil arises.
Explanation:
Another reason was that many animals lived together on two continents, these two continents suffered many ruptures due to the appearance of volcanoes and movements of the tectonic plates and that is how the lands separated and new seas appeared, and the species dispersed throughout the world evolving each one differently according to the environment where it was stimulated.
(5 points)
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Why do bacteria numbers start to decline when treated with antibiotic C but then
begin to increase as time goes on?
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A) Some bacteria with resistance to antibiotic C were selected for over time.
B) Additional bacteria were added to the experimental group.
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C) Antibiotic C degraded and thus was no longer effective.
D) This is the normal course of bacterial growth no matter which antibiotic is
applied.
Answer:
The correct answer is - option A) Some bacteria with resistance to antibiotic C were selected for overtime.
Explanation:
In the given question it is stated that the bacteria number initially declines when they are treated with antibiotic C but then started to increase as time passes on. It is clear with the given data that initially the number of bacteria declines due to bacteria does not resistant to antibiotic C but after some time some bacteria developed resistance to the antibiotic and were selected and increased overtime.
The correct answer is - option A
When plant seedlings emerge from the ground, the leaves always grow upwards while the root system grows downward into the ground.
Explain the force used by plants to determine their growth direction.
HELP ASAP WILL GIVE BRAINLIEST
Answer:
Tropism is the force used by the plants to grow in a specific direction.
Explanation:
The movement of plant parts such as shoots and roots etc in a specific direction in response to an external stimulus, this phenomena is known as tropism. Phototropism refers to the movement of upper part of plant body towards sunlight while on the other hand, the movement of roots downward against sunlight is known as geotropism. Both phototropism and geotropism are the types of tropism.
Fill in the blank: The variable that is changed by the scientist in an experiment is the ________.
Answer:
Independent variable
Explanation:
Sometimes called the manipulated variable. The part of the experiment that is manipulated or changed by scientists or persons performing the experiment.
What is being put together, with the help of light, in the process of photosynthesis?
Answer:
oxygen, and energy (ATP)
A compound that is composed of
Answer:
identical molecules consisting of atoms of two or more chemical elements
Explanation:
A compound that is composed of identical molecules consisting of atoms of two or more chemical elements
Spiders only make one type of silk. True or false?
Answer:
false All spiders can produce silk, but not all spider silk is the same. Spiders can make as many as seven different types of silk, although most spiders are capable of making four or five different kinds.
Explanation:
hope this helps have a good night/day :)
Crickets chirping are an example of which form of communication?
a.
sight
c.
biological
b.
chemicals
d.
sound
You make a model of a cell in a large, rectangular, clear, plastic container filled with the following: gelatin, green M&Ms™, red licorice, several beans, one large inflated balloon, candy sprinkles, and an avocado seed.
What kind of cell is represented by the above model?
A. plant
B. animal
C. bacteria
D. fungi
The kind of cell represented by the above model is a plant cell; option A
What are models?Models are tools such as diagrams, pictures, objects, or descriptions that are used to represent another object, idea, or concept.
Models are useful in biology as they are helpful in explaining and describing biological molecules and structures such as cells, DNA, and proteins, as well as organs and tissues.
Considering the model shown in the image:
the model is a model of the cell of a living organismthe large, rectangular, clear, plastic container represents the cell wallthe gelatin represents the cytosolthe green M&Ms™ represent the chloroplastsseveral beans could represent plastidsthe large inflated balloon represents the large vacuolered licorice represents the nucleusTherefore, the model is a model of a plant cell.
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Use complete sentences or list form in order to describe the steps of replication. You must
use the following words and underline them:
Nucleus Helicase
Complementary strand
DNA Polymerase Ligase
Okasaki Fragments 5’ to 3’ Leading strand
Lagging strand
Answer:
Please find the description below
Explanation:
DNA replication involves the duplication of the DNA molecule in the NUCLEUS to yield two identical copies. It involves the following steps:
- DNA molecule (double stranded) is unwound or separated into a replication fork by DNA helicase.
- The DNA, which now comprises of two single strands i.e. one strand that runs from the 3'-5' called LEADING STRAND and other strand that runs from '-3' called LAGGING STRAND.
- An enzyme called DNA POLYMERASE attaches to the DNA and adds nucleotide in a bidirectional pattern i.e. adds nucleotide to the leading strand in a 5'-3' direction, then adds short pieces of DNA called OKAZAKI FRAGMENTS to the lagging strand.
- The synthesis of nucleotides by DNA polymerase follows the COMPLEMENTARY BASE PAIRING rule i.e. A-T, G-C.
- Another enzyme called DNA LIGASE joins the okazaki fragments together into a whole DNA.
At the end of replication process, two identical copies of DNA is produced, with each containing one old strand and one new complementary strand.
Describe the difference between how light falls on the Earth near the Equator vs the poles
Answer:
it depends on how to earth is rotated it's mostly because the earth rotates in a certain angle that cause sun to go through
HELP ME PLEASE!!!!!
Answer:
Ozone
Explanation:
A molecule contains at least two different types of elements, but ozone only contains one
Answer:
A. I think.
Explanation:
(Im sorry if this is wrong. Please correct me if it is wrong.) Good Luck
Which amino acids are coded for by an mRNA segment that reads CAG GUG? O valine and isoleucine isoleucine and arginine Oarginine and valine glutamine and valine
Answer:
The answer is :
glutamine and valine ✓
How does Earth's position relative to the sun cause the four seasons?
Answer: ANSWER C, Earth axis is tilted with respect to its orbit, so, as it revolves around the Sun its tilt with respect to the sun change, resulting in four season.
Explanation:
Spiders with different proteins in their cells have different traits true or false?
________ any of a number of organized or specialized structures within
a living cell.
Cell organelles are any of a number of organized or specialized structures within a living cell.
What is a cell?A cell may be defined as the fundamental structural and functional unit of living organisms. Each living organism is made of a cell. It is responsible for each metabolic function that is necessary for the survival of living entities.
Inside each living cell, a fluid jelly-like substance known as cytoplasm is filled. This provides an environment for the cell to accomplish all sorts of its task. Within the cytoplasm, a number of various organized or specialized structures are present which are known as Cell organelles.
A cell organelle may be characterized as a small structure in a cell that is surrounded by a membrane and has a specific function.
Therefore, cell organelles are any of a number of organized or specialized structures within a living cell.
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Which of the following is an example of a disadvantage that animals face when they live together in groups? a. They must compete for food and mates. b. They are difficult for predators to find. c. They are especially protected from disease. d. They cannot spot predators quickly.
Answer:
A).
Explanation:
It is shown in many shows about nature, that going in a group has its advantages of protection, but when it comes to hunting / eating and mating season, it is incredibly challenging and can lead to fights that result in death.
2) The beaks of the finches pictured are all adapted to different types of
food sources. Finches that eat mostly insects have thin, pointed beaks
to help them catch their prey while finches that eat more seeds and
nuts have shorter, thicker beaks. If the finch habitat was to
experienced a decline in the insect population due to climate changes,
which of the finches would be most affected?
A) Finch 1
B) Finch 2
C) Finch 3
D) Finch 4
Answer: Finch 1
Explanation:
Do only living things contain DNA? Explain.
Answer:
yes because objects have atoms
Explanation:
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA.
How does natural selection explain why some organisms are more likely to survive and reproduce than other organisms?
A. Some organisms inherit traits enabling them to adapt better to the environment.
B. Some organisms acquire traits during their lifetimes that they pass to their offspring.
C. Some organisms do not reproduce as many offspring during their lifetimes.
D. Some organisms die before they reproduce any offspring.
Any heritable characteristic that aids an organism in surviving and reproducing in its environment is referred to as an adaptation. Some organisms are more likely to survive and reproduce than others as some of them inherit traits enabling them to adapt better to the environment.
Why do organisms adapt?To live, all species must adapt to their surroundings. This entails adjusting to survive the ecosystem's climatic conditions, predators, and other species seeking the same food and space.
Organisms with heritable features which enable them to better adapt to their environment relative to other members of their species will be more likely to live, reproduce, and pass on more of their genes to the next generation the theory of evolution by natural selection.
Thus, the correct option is A.
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Answer 3 to get brainliest on god
the answer is true
Explanation:
because that molecule can plant and help plants
Answer:
I don't know the first 2 but the 3rd one is true.
I know it's nor a lot, but i hope it helps!
Fruit production in anthophytes develops from: a. a female reproductive structure b. a male reproductive structure c. both male and female reproductive structures d. photosynthetic signals
Answer:
a. a female reproductive structure
Explanation:
Reproduction can be defined as a biological process which typically involves living organisms producing an offspring.
Basically, there are two (2) methods of reproduction and these are;
I. Sexual reproduction: it involves the combination of the genome (gamete) of a male and female living organism during fertilization.
II. Asexual reproduction: it involves the cloning of a living organism to produce an offspring because there is only a single parent.
Antophyte is the division name for flowering plants and they are considered to be the most successful of all the other division of plants in terms of reproduction.
Division Antophyta are classified into two (2) main categories and these includes;
I. Monocot: this group of flowering plants have a single cotyledon. Some examples of monocots are lilies, corns, grasses etc.
II. Dicot: this group of flowering plants have two cotyledon. Some examples of dicots are beans, peas, peanuts, etc.
Fruit production in anthophytes develops from female reproductive structure known as the ovary. Once the ovary is fertilized by a sperm, they ripen into a fruit.
How do anabolic pathways yield energy?
A. By decomposing glucose molecules.
B. By bonding water and carbon.
C. By removing electrons.
D. By decomposing other organic fuels.
How do you make a 6.4% NaCl solution?
Fur seals and sea lions have similar body shapes and features. Based on their anatomy, they seem to have a relatively recent common evolutionary ancestor.
xperimenters found that in rats, a certain type of cell will fire when the animal is in a specific location and not when it is in another location. This type of cell is referred to as a _____ cell.
Answer:
hippocampal place
Explanation:
A type of cell that fires when rats are in a specific location as opposed to some other locations are known as place cells.
Generally, place cells are specially shaped neurons whose origin is the hippocampus. These neurons fire or become more active when animals are in certain locations in its environment, as opposed to their overall environment.
The cells are from regions CA1 and CA3 of the hippocampus and collectively act as a cognitive representation of these locations where they are limited to firing. The locations where the neurons are limited to firing are referred to as place fields.
Hence, the cells found in the rat as shown by the illustration are referred to as the place cells whose origin is the hippocampus.
Drag each item to the correct location to indicate whether it addresses the Clean Water Act or the Safe Drinking Water Act. Items may be used more than once or not at all.
Answer:
Be careful with this question because there are inaccurate answers marked as verified. The EPA monitors bottled water so it is not a correct choice for either Clean Water Act or Safe Drinking Water Act.
Household Water Quiz
Drag each item...
Clean Water Act:
wastewater management
surface water quality
Safe Drinking Water Act
groundwater contamination
surface water quality
Explanation:
Quiz was graded and these are right answers as of 1/2021. Good luck!
Why phage is consider as a nanomachine?
Answer:
phages are non-living biological entities that can produce numerous copies of themselves, forming ordered three-dimensional structures on a nanometre scale
Explanation:
A phage (i.e., a bacteriophage), is a virus capable of infecting and replicating within bacteria. Bacteriophages are composed of proteins forming a capsid that encapsulates the genetic material (either DNA or RNA genome), which may contain a variable number of genes. Bacteriophages, and viruses in general, can be considered nanomachines capable of producing numerous copies of themselves with high fidelity by utilizing the molecular machinery of the host bacterial cell. In biotechnology, it has been proposed to exploit the knowledge about bacteriophage reproduction to design diverse nanostructures.
True or false cleavage and fracture refer to the same way in which a mineral breaks
Answer:
the do not break in the same way so false
Explanation:
Fracture and cleavage both describe how a mineral breaks. Fracture refers to rough or irregular surfaces along which the mineral breaks randomly. Cleavage refers to flat planes along which some minerals break.
[[DUE SOON, 50 POINTS!!]]
In the world of Kings , having a male heir to inherit the throne was very important. King Henry the VIII had several wives executed because they gave birth to daughters. Murdering someone for having daughters was wrong, but was Henry right when he put the blame of gender on his wives. What explanation would you give to support or deny his claims?
Answer:
i hope this helps
Explanation:
i think king Henry was wrong because it was his thought that have a daughter is not good or that daughter can not do anything and it was also not his wife's fault that she gave a birth to a girl
Explain why the cell membrane in animal cells is thicker than in plant cells.
