Answer:
The asteroid crashed into the earth and made some water bodies violent
it is said that the asteroid was super huge and was capable of causing volcanoes, tsunamis, etc which took place all over the earth and extincted dinosours. But it is a little surprising that crocodiles who were also found at that time survived all this
Answer:
Probably the asteroid caused natural calamities
Why does asexual reproduction result in offspring with identical genetic variation? Use the examples that you studied earlier in this lesson to support your answer.
Answer:
The reason asexual reproduction results in identical offspring is because the DNA is replicated exactly from the parent to the daughter. One example is bacteria.
Explanation:
Answer:
Sexual reproduction results in offspring with genetic variation due to the multiplication brings about limitless prospects of hereditary variety. The examples, that can be studied to support this would be at the end of the day, sexual generation brings about posterity that are hereditarily extraordinary. They vary from the two guardians and furthermore from one another. This happens for various reasons.
Explanation:
PLEASE MARK ME AS BRAINLIEST
Nerve cells release neurotransmitters across gaps and secretion of proteins and wastes:
Facilitated Diffusion
Endocytosis
Diffusion
Exocytosis
how would you describe what the cells of each stage of the cycle look like ? what are the visible features of the cells.
Interphase, Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis
Interphase:
Is known as the resting stage. Replication of DNA occurs.
- G1
-S
-G2
Prophase:
The chromosomes are visible, centrioles are formed and begin to move to opposite sides. This is where you see the dissolving of the nuclear membrane.
Metaphase:
The chromosomes line up in the centre of the cell.
Anaphase:
This when the cell divides (should look like two circles splitting) you will see the spindles begin to shorten which pull chromatids apart.
Telophase:
The nuclear membrane is reformed.
Hope this helps (:
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Describe the amount of sunlight at the poled and at the equator throughout various times of the year. Why does this occur?
Answer:
Neither of the poles are tilted towards the sun. Hence, the sun rays fall directly on the equator due to which all the places on the Earth experience equal daylight hours and equal night time hours that is, 12 hours of day and 12 hours of night on all the places of the Earth.
Answer:
The fact that the equatorial Sun is always so close to the zenith at solar noon explains why the tropical zone contains the warmest regions on the planet overall. Additionally, the Equator sees the shortest sunrise or sunset because the Sun's path across the sky is so nearly perpendicular to the horizon.
Explanation:
i think this might help
all fatty acid elements
Answer:
Carbon Oxygen and Hydrogen are the elements
Explanation:
Blight is a plant disease caused by a fungus that affects potato plants. Scientists are tying to develop a breed of potato plants that are resistant to blight. The development of blight-resistant potato breed might be good for the environment because the new potato breed will need
A. Less water
B. Less fertilizer
C. Less fungicide
D. Less field space
Answer lil durk a goat LLKV
Explanation:
Describe the energy transformations that exist on earth and in your daily life. Describe at least 3 factors and why each one is important. 40 POINTS
Answer:
Energy is the fundamental need of our everyday life. ... This means that we can convert electrical energy into heat energy and light energy, solar energy can be converted to chemical energy, potential energy can be converted into kinetic energy, Gravitational potential energy can be converted into kinetic energy etc.
Explanation:
The Sun transforms nuclear energy into heat and light energy.
Our bodies convert chemical energy in our food into mechanical energy for us to move.
An electric fan transforms electrical energy into kinetic energy.
Mineral ions are required in the human diet in small quantities. State the mineral ion required for each process: a) making bone b) making haemoglobin
Answer:
a) making bone - Calcium
b) making hemoglobin - Iron
Explanation:
Mineral ions are defined as the charged forms of minerals which are required in small amount in human body but are essential otherwise leads to deficiency symptoms.
Making bone and making hemoglobin both require mineral ion. Making bone require calcium ion, as it maintain the bone mass and strengthen the bones. hemoglobin formation require iron ion, as iron helps to oxygenate our blood cells.
Hence, the correct answer is "a) making bone - Calcium
b) making hemoglobin - Iron".
PLEASE HELP!! WILL BE MARKED BRAILIEST
3. an organism whose cells contain a nucleus and membrane bound organelles
Archaea
Fungi
Eukaryote
Protista
Answer:
Answer is C
Explanation: Please MARK brainiest
Eukaroyote
Answer:
Answer is eukaryote.
Explanation:
A eukaryote is any organism whose cells have a cell nucleus and other organelles enclosed within membranes.
I hope it's helpful!
4. Which of the following factors determines the sex of an offspring, specifically in humans?
A) genes on the X chromosome only
B) the number or chromosomes
C) presence or absence of a Y chromosome
D) genes within the chromosomes
why is the sun so warm
Answer:
cause it supa dig and it's rays be supa hot. ya feel meh
Explanation:
The light radiated by our sun is transformed into heat energy once it reaches a surface. Even though the sun is nearly 92 million miles away from the earth, it's light still reaches us and has it's light transformed into heat.
I am not a professional, simply using prior knowledge!
Note- It would mean the world to me if you could mark me brainliest!
Mrs. Cortez has asked her students to write an explanation what chromosomes are and what they do. Four student examples are shown. Which student has written the best explanation of chromosomes?
Answer:
Araceli
Explanation:
I believe this because she just explains it very nicely & if you are to search up chromosomes definition, you'll see that her answer is very identical.
Answer:
what he said araceli
Explanation:
DNA is responsible for making a cell¨s what?
Answer:
The answer is in the explanation bellow
Explanation:
the major function of DNA is to encode the sequence of amino acid residues in proteins, using the genetic code. To read the genetic code, cells make a copy of a stretch of DNA in the nucleic acid RNA.
what do you think is the most important scientific discovery we humans have made?
Answer:
THE MOON
Explanation:
you did not give a time era
Where is the mRNA made?
Answer: mRNA is made in the nucleus
Explanation:
What do we know about cells?
O cells are nonliving
O cells grow rapidly
O cells are made from plasm
O all cells come from other prexisting cells
Answer:
all cells come from preexisting cells
Answer:
cells come from pre existing cells
In which phase of mitosis do chromosomes attach to the spindle fibers, lining up in the middle of the cell?
Answer:
Metaphase
Chromosomes line up at the metaphase plate, under tension from the mitotic spindle
Explanation:
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please help!!!
Explain how similar and different sexual reproduction in plants and animals is?
Plant's reproduce via. pollen or seeds, whilst the animals reproduce by, and I quote, "getting on top of each other to have a fun time". Hope that helped
Answer:
Both plants and animals reproduce sexually, producing a male and female gamete, which fuse to form a zygote. However, plants are also able to reproduce asexually, unlike most animals. In sexual reproduction in animals, the two gametes are the spermatozoa and the oocyte, which when fused become the ovum.
Explanation:
Grazing is a method of feeding in which herbivores, such as sheep, feed on plants. The intensity in which the herbivores in an ecosystem graze impacts the biodiversity of the plants in that ecosystem, as shown in the graph below.
According to the graph, biodiversity is low during low grazing intensities. This is because only a few species of plants are able to outcompete the others and dominate the ecosystem. As the grazing intensity increases, the biodiversity increases because the dominant plant species are kept in check by the grazers. This allows the weaker competitors to grow. At very high grazing intensities the biodiversity decreases because only plants with adaptations to tolerate the effects of grazing are able to survive.
Which of the following best explains how plant biodiversity would change if all of the grazers were suddenly removed from an ecosystem experiencing high intensity grazing?
A.
Plant biodiversity would likely decrease because every species of plant could grow without limitation after the herbivores were removed.
B.
Plant biodiversity would likely increase because removing one population from an ecosystem would allow more resources for all the others.
C.
Plant biodiversity would likely decrease because a few of the more dominant plant species would outcompete all the others.
D.
Plant biodiversity would likely increase because only a few of the remaining plant species would be able to thrive without the herbivores.
Answer:
I believe the answer is B , it should be .
Explanation:
Answer:
Plant biodiversity would likely decrease because a few of the more dominant plant species would outcompete all the others.
Explanation:
When there is little water in its habitat, the walking catfish can use its pectoral fins to move on land. Which of these will MOST LIKELY happen to a population of walking catfish if over millions of years all surrounding water dries up?
A. The population is likely to evolve to have weaker pectoral fins.
B.
The population is likely to evolve to have stronger pectoral fins.
C.
Walking catfish with stronger pectoral fins and those with weaker pectoral fins will both become extinct.
D.
Walking catfish with stronger pectoral fins and those with weaker pectoral fins will both survive, so evolution is unlikely to occur.
Answer:
B
Explanation:
its maybe the most common sense
What are all the organisms that perform cellular respiration?
Answer:
All the organism that performs cellular respiration is Oxygen is required for cellular respiration and is used to break down nutrients, like sugar, to generate ATP (energy) and carbon dioxide and water (waste). Organisms from all kingdoms of life, including bacteria, archaea, plants, protists, animals, and fungi, can use cellular respiration.
Carbon dioxide is released when which of the following phenomena occur?
precipitation
photosynthesis
burning fossil fuels
nitrogen fixation
Answer:
burning fossil fuels
Explanation:
Which statement is true about levels of organization for living things
A .organisms that are in the same kingdom are always in the same order
B. Organisms of the same species are always in the same class
C. Organisms that are in the same phylum have more in common Then organisms in the same order
D. Organisms that are in the same family have more in common than organisms in the same genius
Answer:
B and D are true
Explanation:
Kingdom - Phylum - Order - Class - Genus - Family - Species
Organisms combine glucose and oxygen in order to release energy in what process?
(GIVING BRAINLIEST!)
Which of the following statements about oceans is incorrect?
A) Oceans collect water from other reservoirs including streams and rivers.
B) Oceans are the main source of drinking water on Earth's surface.
C) Oceans are connected to other reservoirs through evaporation and precipitation.
D) Oceans are the main type of reservoir that contain salt water.
Answer: C
Explanation:
It made sense.
Answer:
B
Explanation:
B is incorrect because oceans are not the main source of drinking water. They contain the most water, but the ocean is not drinkable as it is much too salty and would lead to dehydration and the shriveling up of cells, causing death if it was the only water you drank. Usually only small island countries will have to resort to drinking ocean water after desalinating it, but most of the world gets their water from other sources such as groundwater, springs, lakes, and rivers.
What makes an immovable joint, an immovable joint?
It allows for full movement
It allows for partial movement
It allows for little or no movement
Answer:
It allows for little or no movement.
Explanation:
An immovable joint is a joint that allows little or no movement.
Ex: found between the bones of the skull or gomphosis between the root of a tooth
What are three tasks that DNA must be able to perform in all organisms? Select three answer choices.
A. It must store genetic information.
B. It must discard foreign genes.
C. It must instruct cells to produce needed molecules.
D. It must copy itself.
E. It must move to locations throughout the cell.
Answer:
A. It must store genetic information.
C. It must instruct cells to produce needed molecules.
D. It must copy itself.
Explanation:
Deoxyribonucleic acid, commonly known as DNA, is the genetic material found in virtually all living organisms. It is the biological molecule that holds the genetic instructions needed for the synthesis of useful products (proteins).
DNA molecule must be able to perform the following tasks in a living organism to be considered the genetic material:
- It must store genetic information: DNA is the storage molecule for genetic information in living cells.
- It must instruct cells to produce needed molecules: DNA must be able to undergo gene expression where it directs the synthesis of the needed molecules like proteins, which it encodes.
- It must copy itself: DNA must be capable of replication i.e. must be able to produce two identical copies of itself.
Answer:
A. It must store genetic information.
C. It must instruct cells to produce needed molecules.
D. It must copy itself.
Please help me with this drawing contour lines. I will mark your brainlist if you answer it correctly.
Explanation: Use these images to find the borderlines and to understand what they are.
BRAINLIST PLS!
Why do you think that living and non living things depend on each other in order to survive?
Explanation:
You depend on each other and need the nonliving things in your home, like food, water, air, and furniture. Living things need nonliving things to survive. ... They are food for many animals. Plants use water from the soil, carbon dioxide from the air, and energy from sunlight to make their own food.
Answer:
Organisms depend on other organisms and on the nonliving things in an ecosystem to meet their basic needs for food, water and protection. ... Plants use energy from the sun to produce their own food from air and water. The type of soil, amount of water and temperature range in an area determine the plants that grow there.
The lymphatic system serves which purpose?
Answer:
One of the lymphatic system's primary jobs is to collect excess fluid (particularly lymph fluid) surrounding the body's tissues and organs and return it to the bloodstream.
Explanation:
If the lymphatic system didn't drain excess fluid from the tissues, the lymph fluid would build up in the body and cause swelling. hope this helps!