Answer:
B i took the test
Explanation:
Answer: D
Explanation: Only 0.04% of the atmosphere is carbon dioxide.
13)
In human males, the urethra is used for transport of
A)
egg cells only.
B)
sperm cells only.
C)
egg cells and urine.
D)
sperm cells and urine.
Answer:
D
Explanation:
Answer:
D
Explanation:
Sperm Cells And Urine
how is a food web different from a food chain
A. Food webs contains only producers not consumers
B. Food webs do not include decomposers
C. Food webs exist in aquatic environments food chains exist in terrestrial environments
D. Food webs contain many different linked food chains
Answer:
D. Food webs contain many different linked food chains
Explanation:
The messages that scientists are sending into space are directed at intelligent alien life. Do
you think this is limiting? How could this affect scientists search for life beyond Earth?
Answer:
I think there is life beyond earth. Actually there most definently is. I think in a way it could be limiting. It's the fcat that the ones out there may not even be able to receive the message as fast as we please. Who knows, it could be years, decades, maybe centuries before they make actual contact with us. Then again, maybe they already have. But, the way this could affect the study is the fact that (I doubt it) but maybe a message could be sent the wrong way, or they misinterpret it. That's the only think I can get off. Anyway, this can also depend on how much funding is going into space. This also brings up the question, "How much do we know about our own planet?
why are there no gram-positive archaea species but there are gram-positive bacteria species
Answer:
There are no gram-positive archaea because archaea lack peptidoglycan in their cell walls, meaning that the archaic cell walls are more similar to gram-negative bacterial walls, although they do show a greater variety of cell wall types. And bacteria do have this.
What do you think happens to a fish’s behavior in cold climates during winter explain
Answer:
it changes just as the weather changes
Explanation:
so as it gets colder the fish get colder as well meaning that the fish will expect its habitat to turn warmer just as we humans (some of us aliens jkjk) want warmth when we are cold its the same thing with fishes
What is the purpose of a trophic pyramid?
Explanation:
An ecological pyramid (also trophic pyramid, Eltonian pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem.
What is respiration?
Answer:
B r e a t h i n g
EXPLAINATION????:
A process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
Answer:
Another word for taking a breath.
Explanation:
The images above all illustrate the presence of a vestigial structure. What is this structure and why is it no longer used for its original function? A) Sacral vertebrae have disappeared in modern man. They are no longer needed as man stood more and more upright. B) Lumbar vertebrae. As man became bipedal, the vertebrate became shorter and wider. These particular vertebrate disappeared. C) Coccyx or tailbone is the remnant of a lost tail. The tail was used for gripping as well as an aid in balance and mobility. D) Iliac blade. This part of the pelvis was shortened and widened as a requirement for keeping the center of gravity stable while walking.
Answer:
C, the Coccyx
Explanation:
Arrange the tiles to show the sequence of events in the development of the theory of evolution.
Scientists examined evolutionary
relationships using DNA sequencing.
Scientists collected fossils that
showed species changing over time.
Mendel proposed laws for
how traits are inherited.
Darwin collected specimens
from around the world
during the HMS Beagle voyage.
Darwin proposed the theory of
evolution by natural selection.
Answer:
Explanation:
Here is the summary;
In 1817 his father collected later, in1828 Alexandre Brongniart's son (Scientists) collected fossils that showed species changing over time.
Between 1831–36 Darwin collected specimens from around the world during the HMS Beagle voyage
In 1859 Darwin proposed the theory of evolution by natural selection
Between (1856-1863), published in 1865 Mendel proposed laws for how traits are inherited.
Scientists examined evolutionary relationships using DNA sequencing.
During their early stages of development, the embryos of reptiles, birds, and mammals look very similar. The embryos of reptiles, birds, and mammals also have many of the same structures and develop in similar patterns. This suggests that reptiles, birds, and mammals... *
Answer:
share a common ancestor
Explanation:
The similarity in their embryos and embryonic development suggests that reptiles, birds, and mammals share the same ancestor.
Similarity in the structure and development of embryo is one of the evidences that is been used by scientists to support the theory of evolution of species. According to the theory of organic evolution, all organisms are on earth as a result of descent with modifications from common ancestors.
Reptiles, birds, and mammals are all vertebrates. They share some basic characteristics and are thought to have shared a common ancestor before each group took different adaptive channels leading to their differences as they currently exist.
What are examples of two
species dividing up the parts of a habitat?
•
helpppp plzzzz
Answer:
In a hot spring in Kamchatka, Russia, the two groups of genetically indistinguishable microbes parted ways. They began evolving into different species—despite the fact that they still encountered one another in their acidic, boiling habitat and even exchanged some genes from time to time, researchers report.
Hope this helps
Which is the correct answer?.
Answer:
d. 232 km/h
Explanation:
speed = distance/ time
speed = 290/1.25
speed = 232 km/h
Answer:
d
Explanation:
How can these artificial reefs protect biodiversity in the ocean ecosystem?
Answer:The reefs create a shelter for organisms and food
Explanation:Therefore it now created a more populated area for more animals or organisms to live.
Answer:
Plato
Explanation:
Many animals depend on corals for food and protection. By restoring the reefs using this method, they may be able to protect other populations of organisms from declining as well.
True or False?
The least complex level of organization of the human body is a cell.
Answer: false
Explanation:
Answer:
TRUEExplanation:
What are the body's levels of organization from least complex to most complex?
Cell, Tissue, organ, organ systemanswer this question
technically its not even a question but idk. whats up?
The term chemicals in this diagram represents
A. Starch molecules
B. DNA molecules
C. Hormone molecules
D. Receptor molecules
Answer:
C. hormone molecules
Explanation:
hormones are secreted in glands and are transported to the organs where they affect it and cause changes.
What type of mutation is taking place in this diagram?
Answer options in the photo
Answer:
Inversion, because it's switched to the opposite order. d e f becomes f e d
Explanation:
Why are marsupials only found in Australia?
Answer:
B. Australia is isolated
Explanation:
They originated in South America and spread throughout the world, but due to competition on other continents, the other marsupials died out, while the ones on Australia lived.
Where is fresh water located
How do wetlands form?
Tributaries flow into rivers.
Runoff travels down the side of a divide.
Water builds up in a depression left by an ice sheet.
Groundwater comes to the surface and floods the land.
Answer:
D) groundwater comes to the surface and floods the land
Explanation:
Groundwater like water from river or lake comes to a land and before it has a chance to go back into the soil or evaporate, more water comes and floods the areas, thus the previous water stays and new water stays as well. If this cycle is repeated, a wetland will form.
wetlands form The tributaries flow into rivers.
How do wetlands form?Wetlands is a flat area of abundant herbaceous and/or shrubby vegetation that remains flooded most of the time. Swamps generally appear in areas where water flow is slow. In this way, the organic mass present in the waters decomposes on the spot.
With this information, we can conclude that wetlands are formed. The tributaries flow into rivers.
Learn more about wetlands in brainly.com/question/11438518
15 POINTS The_____line of defense is referred to as the immune response
Answer:
The third line of defense is referred to as the immune response. This defense is specific to a particular pathogen, and it allows the immune system to “remember” the pathogen after the infection is over.
Explanation: in my best description, btw if its good make me brainliest?, if it didnt help im sry i tried my best
Match the function to the structure or gland
Answer:
hypothalamus
Explanation:
Answer:
Hypothalumus - Part of the brain that helps to regulate the endocrine system
Thymus- Helps children develop a strong immune system
Pituitary- Regulates growth, water balance, and blood pressure
Thyroid- Regulates metabolism
Explanation:
I got it right
Explain your hypothesis and how you determined it.
Answer:
A hypothesis is a tentative, testable answer to a scientific question. Once a scientist has a scientific question she is interested in, the scientist reads up to find out what is already known on the topic. ... A hypothesis leads to one or more predictions that can be tested by experimenting
Explanation:
my friend moved to neverland and now im sad
:(
Fun fact
Bananas
Explain why overpopulation occurs and how it impacts ecosystems.
Answer:
overpopulation can occur when there are not enough preadators or the food web is out of balance, in some ecosystems overpopulation can really harm it as some organisms increase and decrease which can cause an extintion if it gets too out of hand.
Explanation: period.
Hope this helps
in predation, the animal that is hunted and eaten is the?
Answer:
The answer is The Prey
Explanation:
Took a quiz
Answer:
prey
Explanation:
What is length of GX?
6.2
Enter your answer in the box
5.7
units
4.5
w
Next
Answer:
6.2
Explanation:
The shape is congruent so it's just flipped. I hope this helps! :)
Human blood consist of blood groups A, B, & O. However, there is one more blood group, AB, which contains alleles A and B in the same genotype. What is this phenomenon called?
Answer:
codominant inheritance
Explanation:
edge
Competition occurs when more than one organism is trying to use the same resource.True or false?
Answer:
true
Explanation:
Describe how changing a biotic or abiotic factor can influence an entire biome. Could changing biotic or abiotic factors be responsible for the decrease in phytoplankton populations introduced at the beginning of this lesson? Explain.
Answer:
it can change weather things will live or die
Ecological succession occurs when changes to either abiotic or biotic factors have an impact on an entire ecosystem. The replacement of one community of creatures, such as a plant or animal, by another is known as ecological succession. A forest fire is one illustration.
What biotic or abiotic factor can influence an entire biome?An ecosystem's overall health is also influenced by biotic factors such as the diversity of consumers and the presence of autotrophs, or self-sustaining organisms like plants.
Abiotic variables have an impact on an organism's capacity for survival and reproduction. Populations are constrained in their expansion by abiotic forces. In an ecosystem, how these elements interact is crucial.
Therefore, it can change weather things will live or die.
Learn more about biotic or abiotic here:
https://brainly.com/question/1542938
#SPJ3
Which of the following provides the best evidence that the circulatory system and the respiratory system work together to carry out their functions?
A : Nutrients are absorbed into the blood from the intestines.
B : Lungs expand and contract through movements of the diaphragm.
C : New red blood cells are generated in the marrow of bones.
D : Gases exchanged in the lungs are carried by the blood.
Answer:
D
Explanation:
Your first order of business should always be to see which answers involve both of the systems. A has the circulatory system (blood) but no respiratory system (intestines are the gastrointestinal system), B has the respiratory system (the lungs) but no circulatory system, C has the circulatory system (new red blood cells) but not the respiratory system (bones are the skeleton), and that just leaves D, so it has to be the answer. When you look at it to check, it includes both systems, as the lungs are part of the respiratory system and the blood is part of the circulatory system.
