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Jean listed the steps involved in the life cycle of a gymnosperm.
Answer:
before step 3 aka the first one
Explanation:
Answer:
The correct answer is answer 1.
Explanation:
The ovule usually gets cones before it develops into a seed.
This one should be easy. Good Luck :(
Hurry
A few years ago the population of male blue moon butterflies on the island of Samoa declined. One hypothesis for the decline of the male butterflies is that a parasite infected the cells of female butterflies. The parasite was passed to offspring through the females’ eggs and killed the male butterfly embryos. At one point during the decline, nearly all the butterflies in the population were females, but after five years the number of males in the population increased significantly.
Which explanation most likely accounts for the increase in the number of male butterflies in the five years after the initial parasite problem?
Male butterflies in the population that survived were able to prey on the parasites living in the females’ egg cells.
Female butterflies in the population that survived had a genetic adaptation that allowed them to transform into male butterflies.
Male butterflies in the population that survived had a gene that made them resistant to the parasite, and they passed the gene on to their offspring.
Female butterflies in the population that survived were able to protect the male eggs from the parasite and provide extra care for the male offspring.
One hypothesis which can explain the increase in the number of male butterflies is that the male butterflies in the population survived had a gene that made them resistant to the parasite, and passed the gene on to their offspring. Thus, the correct option is C.
What is Population growth?Population growth is the change in the number of individuals or species in a population. A population is the sum total of all the living organisms which are living in a particular environment.
According to the situation, the number of males in the population has increased significantly. This increase in the number or the population growth of males can be explained as the male butterflies in the population that survived earlier had a gene which made them resistant to the parasite, and they passed on the gene to their offspring which lead to the increase in the number of males in the population.
Therefore, the correct option is C.
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The historical sequence of fossils found in Earth's rock layers is called the
A. Trace Fossil
B. Mold
C. Cast
D. Fossil Record
my is the bass
Research and describe the biotic and abiotic factors that work together to create your animal’s habitat. You must research and describe at least 5 total factors, maybe 2 from biotic and 3 from abiotic. You mix how you choose as long as you have a mix of biotic and abiotic totaling 5! Look at the last 2 bullet points below for help.
Describe the impact of your vertebrate (animal) on humans.
Describe humans’ impact on your vertebrate.
You must use at least 2 different resources to find your information.
Biotic Factors to explore--- predators, food preferences and supply, population density (how many of that population in that habitat), other species with which your vertebrate interacts in its habitat (think about your symbiotic relationships-mutualism, commensalism, parasitism), disease
Abiotic Factors to explore---temperature range, precipitation, water, topography (what are the land features-hilly, mountainous, flat, combination), wind, shelter, nesting site and place to raise young, escape routes from predators
Answer: Relevance
The scope of abiotic and biotic factors spans across the entire biosphere, or global sum
of all ecosystems. Such factors can have relevance for an individual within a species,
its community or an entire population. For instance, disease is a biotic factor affecting
the survival of an individual and its community. Temperature is an abiotic factor with the
same relevance.
Some factors have greater relevance for an entire ecosystem. Abiotic and biotic factors
combine to create a system or, more precisely, an ecosystem, meaning a community of
living and nonliving things considered as a unit. In this case, abiotic factors span as far
as the pH of the soil and water, types of nutrients available and even the length of the
day. Biotic factors such as the presence of autotrophs or self-nourishing organisms
such as plants, and the diversity of consumers also affect an entire ecosystem.
Influencing Factors
Abiotic factors affect the ability of organisms to survive and reproduce. Abiotic limiting
factors restrict the growth of populations. They help determine the types and numbers
of organisms able to exist within an environment.
Biotic factors are living things that directly or indirectly affect organisms within an
environment. This includes the organisms themselves, other organisms, interactions
between living organisms and even their waste. Other biotic factors include parasitism,
disease, and predation (the act of one anim
Explanation:
I love to hike. Why is going off the established trails destroying nature?
A) Creating new paths causes pressure which causes new rocks to form.
B) Creating new paths causes erosion.
Answer:
A) Creating new paths causes pressure which causes new rocks to form.
For creating new paths causes erosion, one is going off the established trails destroying nature. The correct option is B.
What is erosion?
Erosion occurs naturally when soil and rocks are moved by wind, water, or gravity. People, on the other hand, disturb the natural balance of the landscape and increase the likelihood of erosion occurring.
This can result in soil degradation, vegetation loss, and stream channel changes.
Established trails are intended to strike a balance between human access to natural areas and the need to protect the environment.
When people deviate from established trails, they risk damaging fragile ecosystems, disrupting wildlife habitats, and causing erosion.
Going off established trails can also contribute to the spread of invasive species, which can be harmful to the natural environment.
Thus, the correct option is B.
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A weather map shows two areas with a big difference in air pressures. The high air pressure area is to the south, and the low air pressure area is to the north. What do you predict will happen?
A) A breeze will blow between north and south.
B) Strong winds will blow from north to south.
C) Strong winds will blow from south to north.
D) Winds will blow back and forth between north and south.
Answer:
D
Explanation:
The air pressure will try to sway from left to right logically these to forces will be fighting so it would blow back and forth from north to south, hope this helps.
Birds share many similarities with a certain group of dinosaurs that includes the Tyrannosaurus Rex and the Velociraptor. Like birds, these dinosaurs had hollow bones and scales. Fossil evidence shows that many had feathers and some could fly. Evidence also suggests these dinosaurs were warm-blooded.
Given the similarities, identify one characteristic that could be used to differentiate birds from dinosaurs.
Answer:
Size
Explanation:
Dinosaurs, based on recent studies show that they were larger animals and its not possible now for a bird to be the same height or weight as a dinosaur back then
Birds and dinosaurs have found to share many similarities such as presence of feathers, laying eggs, warm blood however the size difference is the main differentiating characteristic between the two.
What are evolutionary links?Different species are related to each other and are gradually undergoing change over time. Evolution in a population affects the physical characteristics of an organism. The ancestors and links between two species can be found with the help of evolutionary links.
The features or evolutionary links between birds and reptiles i.e., dinosaurs are walking on two legs, having feathers, laying eggs, warm bloodedness. All these traits are inherited features from dinosaurs. The difference between dinosaurs and birds is in the size of their body and absence of scales on the birds body.
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Can someone help me with this? I really need help, It was due yesterday, the questions are in the picture!
Answer:
5. A
6. B
7. D
8. D
Explanation:
I think thats right lol
Answer:
5. A
6. B
7. D
8. D
EXPERT HELP I'LL GIVE BRAINLIEST:
Which statement describes how the muscular and skeletal system cause parts of the body to move
Answer:
id say its A
Explanation:
not too sure...
Brainliest and 30 points better get it quick.
Henry was researching how plant structures help plants survive. He noted that one plant in his kitchen required less water than the other plants. His explanation for this is the waxy coating helps reduce water loss. What is Henry's evidence for this explanation?
potted plant with shiny long leaves
Public Domain
The dampness of the soil
The plant required less water
The size of its leaves
The texture of it leaves
physical change
A. the process in which new substances are formed during a chemical change
B. a change in matter that results in a change in the identity of matter
C. a combination of two or more substances
D. a change in matter that does not result in a change in the type of matter
Answer:
Im pretty sure its D or A
A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another.
Answer:
D.
Explanation:
If it is just a physical change then we can instantly cross out B. and A. as they say in there that they become a new substance and that is not just a physical change. C. is not correct because they combine and there for make a new substance. That leaves D. which makes sense because a physical change would be a change in its size or something that doesn't change the material, this is like when you break a rock, it is now in pieces and smaller but it is still the same rock therefor it is a physical change.
Most thermal energy used on Earth comes from
Answer:
Geothermal energy
Explanation:
Geothermal energy is the heat that comes from the sub-surface of the earth. It is contained in the rocks and fluids beneath the earth's crust and can be found as far down to the earth's hot molten rock, magma.
Energy and matter cycle through a beach ecosystem on the Gulf of Mexico. Identify one kind of model you can use to show the path of energy and matter through this ecosystem. Describe one limitation and one benefit of using that kind of model to show those processes.
(Please I'm in a hurry this is due today) 20 POINTS
Needs at leat 5 sentences.
One kind of model that I can use to show the path of energy and matter through this ecosystem is
Food chain; shows a single pathway of energy flowing, making it easy to see which organisms are primary, secondary and tertiary consumers.According to the question, we are to discuss kind of model you can use to show the path of energy and matter through this ecosystem.
As a result of this, we can see that food chain can serve this purpose because it gives a linear sequence of energy transfer and allows to determine organisms that falls into different types of consumers.
Therefore, food chain is a model which shows a single pathway of energy flowing.
CHECK THE COMPLETE QUESTION BELOW;
Energy and matter cycle through a beach ecosystem on the Gulf of Mexico. Identify one kind of model you can use to show the path of energy and matter through this ecosystem. Describe one benefit of using that kind of model to show those processes.
Food web; shows energy available at each trophic level for the next group of organisms
Energy pyramid; show all pathways of energy flow in an ecosystem
Food chain; shows a single pathway of energy flowing, making it easy to see which organisms are primary, secondary and tertiary consumers
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How do diffusion and osmosis differ?
a
Only water molecules move during osmosis; oxygen and waste move during diffusion.
b
Diffusion takes place in eukaryotes; osmosis takes place in prokaryotes.
c
Substances move into cells during diffusion; substances move out of cell during osmosis.
d
Only water molecules move during diffusion; oxygen and waste move during osmosis.
Answer:
The Answer is A a
Only water molecules move during osmosis; oxygen and waste move during diffusion.
Which statement is most accurate?
A. Weathering occurs only after erosion.
B . Erosion occurs after weathering.
C. Either weathering or erosion may occur first.
D . Weathering and erosion occur simultaneously (at the same time).
Answer:
the answer is b. erosion occurs after weathering
Please help! I'll give brainliest!
Which type of gymnosperm is shown?
Answer:
i think c
Explanation:
6. Your myth: bacteria and archaea are the same.
Fact:
Evidence:
provide a fact and a evidence. 2-3 complete sentances
Scientific modelling is a scientific activity, the aim of which is to make a particular part or feature of the world easier to understand, define, quantify, visualize, or simulate by referencing it to existing and usually commonly accepted knowledge.
Can anyone reword this? Please
An ecosystem has ________________________ when it has a large variety of organisms and has enough resources to support those organisms.
Answer:
Biodiversity
Explanation:
Biodiversity refers to the variety of living species on Earth, including plants, animals, bacteria, and fungi.
Hope this helps you :)
20 points, just give an actual answer please
Answer:
A- Gogli apparatus
B- nucleolus
C- Endoplasmic Reticulum
D- Mitochondrion
E-Ribosomes
F- Lysosome
Explanation:
You know its the endoplasmic reticulum when it surrounds the nucleus and is warped. It is confused sometime with the Gogli apparatus. But the Gogli apparatus is thicker and straighter.
Nucleolus is the brain of the nucleus
Lysosomes are big circles, ribosomes are small circles. Ribosomes are usually found around the Endoplasmic Reticulum
Mitochondria is the tic-tac looking thing with lines on it. This is the powerhouse of the cell. "Mitochond-rhianna"
Answer:
A- Gogli apparatus
B- nucleolus
C- Endoplasmic Reticulum
D- Mitochondrion
E-Ribosomes
F- Lysosome
Explanation:
The plant cell below has some damaged organelles. What would MOST LIKELY result from this damage to the cell?
Answer:
If cell wall of a plant is damaged, the cell will be collapsed. The cell wall separates the cytoplasm from external environment and protects cell organelles. without cell wall they will be damaged. Cell also acts as permeable membrane for solvents and ions which cannot happen when cell wall is damaged.
Explanation:
which layer of Earth has the most mass? A*the crust B the mantle C the inner core D the outer core
Answer: the mantle B
Explanation: Largest layer resulting in biggest mass.
Fred wants to summarize mitosis in the cell cycle. Which statement describes mitosis?
A. Mitosis includes several steps that occur after the cytoplasm is divided but before the DNA has been copied.
B. Mitosis includes several steps that occur after the DNA has been copied but before the cytoplasm is divided.
C. Mitosis is the step in which the cytoplasm is divided.
D. Mitosis is the step in which the DNA is copied.
Which of the following is correct about air temperature?
*The higher you go, the colder the air gets.*
*The higher you go, the warmer the air gets.*
*The higher you go, the lower the air temperature becomes.*
A) I and III
B) II and III
C) I, II, and III
Answer:
The higher you go, the lower the air temperature gets
Explanation:
Answer & Explanation:
The answer is A because, The higher you go, the colder the air gets, which also means that the higher you go, the lower the air temperature becomes.
Hope this helps!!!
Please help! I'll give brainliest!
What role can fire play in the life cycle of some gymnosperms?
Answer:
The answer is - It Can help cones open and release seeds.
Read these sentences from the text.
After Eris was discovered, scientists had to make a decision. Either Eris was the 10th planet in the solar system or it was not a planet at all! And if Eris weren’t a planet, could Pluto be considered one?
Scientists made new rules for what is counted as a planet, and decided that neither Pluto nor Eris qualified.
Based on this information, what did the discovery of Eris make scientists do?
a
The discovery of Eris made scientists rethink the rules for what is counted as a star.
b
The discovery of Eris made scientists rethink the rules for what is counted as a dwarf planet.
c
The discovery of Eris made scientists rethink the rules for what is counted as a planet.
d
The discovery of Eris made scientists add more planets to the group of planets.
Answer:
The answer is C
Explanation:
The reason why is because in the text it doesn't mention anything about these two planets becoming a dwarf planet so it can't be B (excuse the pun) and it doesn't mention anything about the two planets being a star so it can't be A and answer D they did not add more planet to the group of planets so it has to be C.
Which statement best explains how sexual reproduction increases variation
within a species?
A. It changes the base sequence of an organism's DNA.
B. It causes the genes of two different individuals to mix.
C. It copies one parent's genes to make each offspring.
D. It changes the trait that a given gene produces.
Answer:
i feel like its b. lowk
Explanation:
Which of these things will most likely increase the salinity of a region of the ocean?
A.
runoff from a large river
B.
increased precipitation
C.
the thawing of a large iceberg
D.
the evaporation of seawater
Answer:
c
Explanation:
FILL IN THE BLANKS: The __________ the biodiversity, the ____________ the stability of an ecosystem.