Answer:B) Cones open and release seeds .
Explanation:idk man I got it right so like why not put it here because it might help other people
Answer:
The answer is B
Explanation:
As a conservationist, what are your top three concerns regarding the hydroelectric dam and the biodiversity of the region?
Answer:
I’m concerned about how the dam will affect the water flow in the river, which can affect the behaviors of fish. I’m also concerned that some fish and aquatic animals might get sucked into the dam. Finally, I worry that the dam could malfunction and cause flooding, which could damage the ecosystem.
Explanation:
Top three concerns regarding the hydroelectric dam and the biodiversity of the region
Hydropower can also cause environmental and social problems. Reservoirs drastically change the landscape and rivers they are built on. Dams and reservoirs can reduce river flows, raise water temperature, degrade water quality and cause sediment to build up. This has negative impacts on fish, birds and other wildlife.
How do hydroelectric power plants affect the environment?Hydroelectric plants alter the natural habitats of freshwater species in the areas they are located. It changes the concentration of nutrients, water temperature, and the river's flow. Downstream river flow suffers a loss of water and silt loads, reducing water quality.
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Orchids are flowering plants that depend on bees for pollination. A population of orchids in a rainforest has reached its carrying capacity. The size of the rainforest's bee population is a limiting factor of the orchid population. What will happen to the orchids' carrying capacity if the rainforest's bee population decreases?
A.
The carrying capacity will not change because it is a constant property of an ecosystem.
B.
The carrying capacity will decrease because the level of the limiting factor decreases.
C.
The carrying capacity will not change because it is a constant property of a species.
D.
The carrying capacity will increase because the level of the limiting factor decreases.
Answer:
b. The carrying capacity will decrease because the level of the limiting factor decreases.
Explanation:
i got it right on edmentum
Which characteristics do temperate Marine and temperate Continental climates have in common
Options are not provided in the question. The complete question is:
Which characteristics do temperate marine and temperate continental climates have in common? Check all that apply.
A.mild winters
B. hot summers
C. many tall trees
D. moderate amount of precipitation
E. two seasons with temperature differences
Answer:
D. moderate amount of precipitation
E. two seasons with temperature differences
Explanation:
The temperate marine climate is generally the climate of west coasts in higher middle latitudes of continents.
Temperate continental climates also known as microthermal climates are located away from the oceans.
Though the location of both the climates is different but some of the characteristics are similar that include are modertae amount of precipitation and two seasons with temperature differences.
Both the climates have moderate rainfall across the year ( modertae amount of precipitation) and mild to warm summers and cool to cold winters.
Hence, the correct option is D and E.
Answer:
Answer is D on egde!!
Explanation:
A large population of fish live in a lake. The color of their scales is determined by two different alleles of the autosomal S gene, S1 and S2. Homozygous S1S1 fish have yellow scales, S2S2 homozygotes have blue scales, and S1S2 heterozygotes are green. Scientists caught 100 fish at random and recorded their color. Among those 100 fish were 30 yellow, 50 blue, and 20 green ones. After the original sample was analyzed, an asteroid landed in the lake and killed all the fish that happened to be in one particular location. When 100 fish were sampled again, 15 were yellow, 75 were blue, and 10 were green. Was the fish population in Hardy-Weinberg equilibirim (HWE) before the asteroid hit? In an ideal population, how many generations would it take to establish HWE after the asteroid hit?
Answer:
Yes it was
two generations
Explanation:
H0: population is in Hardy-Weinberg equilibrium
Ha: population is not in Hardy-Weinberg equilibrium
P(S1) = (2×obs(S1S1) + obs(S1S2))/(2×fish(S1S1)+2×fish(S1S2) +2×fish(S2S2) )
P(S1)= (60+50)/(60+100+40)
P(S1)=0.55
P(S2)= 1-P(S1)
P(S2)= 0.45
Exp(S1S1)= 0.55×0.55×100=30.25
Exp(S1S2)= 2×0.45×0.55×100=49.5
Exp(S2S2)= 0.45×0.45×100=20.25
x²=∑ (Observed-Expected)²/ Expected
= (30-30.25)²/30.25 + (50-49.5)²/49.5+ (20-20.25)²/20.25
= 0.010203
The value at 5% significance level and degree of freedom 1 from table is 3.84. Since x² value is less than value we accept null hypothesis
It takes two generations to achieve Hardy-Weinberg equilibrium if conditions of Hardy-Weinberg are met.
Which of the following best describes the process of hydration?
Answer:
D that is, water bonds with elements in the minerals that make up rock, forming new substances.
Explanation:
hope its right!
Answer:
Water bonds with elements in the minerals that make up a rock, forming new substances.
Explanation:
you welcome
A summary of what grade 10 learn in biology
Answer:
cells, energy and transport, reproduction and cell division, classical genetics, molecular genetics, evolution, human body systems, ecology.
Explanation:
I looked this up and i have a older sister in grade 10, so i'm 100% sure this is right.
What is the main cause of an aurora?Arrange the inner layers of the Sun in order starting with the innermost layer.
Answer:
i.Core:The center of the Sun where all the Sun's energy is produced.
ii.Radiative Zone:Tiles Energy produced by nuclear reactions in the core travels to this zone through radiation.
iii.Convection Zone:In this zone, hotter gases from the base travel to the top and cooler gases sink to the bottom due to the temperature difference.
iv.Photosphere:This zone is visible from Earth. Sequence
When charged particles from the sun strike atoms in Earth's atmosphere, they cause electrons in the atoms to move to a higher-energy state. When the electrons drop back to a lower energy state, they release a photon: light. This process creates the beautiful aurora, or northern lights. ~Earthsky
Answer:
hiii
Explanation:
is b
The surface of the villi in the small intestine is covered by a single layer of epithelial cells called enterocytes. Enterocytes absorb nutrients from the intestinal lumen as they move up the side of the villus. The enterocytes are shed from the end of the villus through apoptosis after 3 to 4 days. Consequently, new cells must be continuously supplied from the crypt and move up the villus. When a stem cell in the crypt divides, what are its immediate daughter cells
Answer:
either a stem cell or a specialized cell, such as an enterocyte
50 points. ANSWER FAST FOR BRAINIEST. Why is the human body a system of interacting subsystems
composed of a group of specialized cells and tissues? (please use detail and be very specific!) this is supposed to be an essay but please just give me the main points/ the most important info!
I give brainiest and thanks! appreciate it :) SCIENCE
Answer:
Explanation:
In multicellular organisms, the body is a system of multiple interacting subsystems. These subsystems are groups of cells that work together to form tissues and organs that are specialized for particular body functions.
How does teaching the public about energy conservation help decrease alr
pollution?
A. It reduces the demand for electricity
B. It increases the supply of electricity
C. It increases the consumption of electricity
D. It reduces the cost of electricity,
It’s A btw
Answer:
I think you answered your question but if not A
Explanation:
All the other answers are just dumb
Which of the following statements is accurate?
A. Natural Resources depend on the topography of the area,
B. Natural resources depend on the atmosphere of the area,
C. Natural resources depend on the geography of the area,
D. Natural resources depend on the weather of the area
Answer:
B
Hope this helps!
Identify the remaining processes and components of the carbon cycle. organisms release CO2 atmospheric CO2 plants use CO2 combustion fossil fuels form
Answer:
Carbon dioxide (CO2) is an important component in atmosphere and Carbon cycles allows movement of carbon dioxide from the atmosphere into living things and from living things to atmosphere again.
There are four main processes included in carbon cycle that is photosynthesis, decomposition, respiration and combustion.
In respiration, living organism such as animals and humans intake oxygen and releases CO2 in atmosphere.
In the process of photosynthesis, plants take CO2 from atmosphere and convert it into oxygen (O2) in the presence of sunlight and water.
In Decompoition, the bacteria present in soil decomposes dead matter by breaking down into simpler organic or inorganic matter such as water, carbon dioxide, and mineral salt. The nutrient cycle then recycle the carbon dioxide and send back to teh atmosphere.
In combustion, the burning of fossil fuel in cars and industries releases carbon dioxide back into the atmosphere.
So, the components of carbon cycel include atmosphere, terrestial biosphere, ocean ( dissolved inorganic carbon), and sediments ( fossil fuels).
.
Answer:
Here's what I got for this one
Explanation:
Hope it helps!
Use the drop-down menus to answer the questions.
Which feature contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell?
Which two features are present in a plant cell but not in an animal cell? ************someone HELP PLEASE***********
Answer:
A DNA is contained in the NUCLEUS of a eukaryotic cell not a prokaryotic cell. Your awnser is " nucleus"
Explanation:
The feature that contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell is the nucleus. The two features that are present in a plant cell but not in an animal cell are the cell wall and chloroplasts.
1. Eukaryotic cells have a membrane-bound organelle called the nucleus that contains the DNA of the cell. It is in charge of conserving and safeguarding the genetic material, including the chromosomes that contain the genes that govern the properties and operations of the cell.
On the other hand, prokaryotic cells are devoid of a genuine nucleus. The cytoplasm of these cells contains their genetic material, which is normally one circular DNA molecule.
2. Cell Wall: The cell membrane of plant cells is enclosed by a strong cell wall. The plant cell is protected and supported structurally by the cell wall. Together with other polysaccharides, proteins, and cellulose, a complex carbohydrate, it essentially consists of these elements. Animal cells lack a cell wall and are supported instead by extracellular matrix and other structural elements.
Chloroplasts: The chloroplasts found in plant cells are in charge of photosynthesis. Specialized organelles called chloroplasts house the pigment chlorophyll as well as other pigments that are used to absorb light energy.
They do this by converting light energy into chemical energy, releasing oxygen as a byproduct and creating glucose. As animal cells lack chloroplasts, they are unable to perform photosynthesis.
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The process through which humans breed other animals and plants for particular traits:
A) artificial selection
B) genetic engineering
C) genes
D) selective breeding
E) traits
Answer:
A) artificial selection
Which of the following statements regarding selenium/selenoproteins is incorrect?
a. They are proven protection against colon cancer.
b. The amount of selenium in foods depends upon the soil where the plants were grown and animals grazed.
c. Selenium functions as an antioxidant.
d. Selenium plays an important role in the regulation of thyroid hormones.
Answer:
The correct answer is: A. They are proven protection against colon cancer.
Explanation:
Selenium is a mineral that can be incorporated into our bodies in small amounts when we consume certain foods, such as whole grain and dairy products. The amount of selenium in these products depends on the soil where the plants and animals were.
Selenium plays an important role as an antioxidant, which can lower the risk of developing several types of cancer. However, this doesn't mean that its consumption can prevent colon cancer, and the studies that had been done to prove its effectivity in these regards have been inconclusive.
Besides functioning as an antioxidant, selenium also is very important for the regulation of the thyroid hormones, which play an important part in metabolism.
The protein that contains selenocysteine amino acid remnants is called selenoproteins. They are found in the endoplasmic reticulum of the cells.
The incorrect statement is:
Option a. They are proven protection against colon cancer.
The statement can be explained as:
Selenium is a mineral that gets incorporated into our body through foods, dairy and whole grains. The amount of selenium depends on its amount and presence in the soil.Selenoproteins are good antioxidants that can lower the risks of cancers. But its consumption does not provide complete protection against cancers.It also regulates the thyroid hormone and plays a vital role in the regulation of metabolism.Thus, they have not proven medication for colon cancer.
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What is the water cycle?
A: the storing of water under on or above the earth’s surface
B: the removal of water under on or above the earth’s surface
C: the continuous movement of water under on or above the earth’s surface
D: the creating of water under on or above the earths surface
C. The continuous movement of water under, on, or above the earths surface.
Answer:
C
Explanation:
The water cycle is a cycle, meaning it happens over and over again. Water isn't stored, created, or removed, it is moved around and it goes through different processes. For example, some stages of the water cycle are evaporation, condensation, precipitation, infiltration and run off.
Therefore choice C: the continuous movement of water under on or above the earth’s surface, is correct.
what is the importance of reflex actions?
Explanation:
to minimize any damage to the body from potential harmful conditions
An involuntary motor response to a sensory stimulus is known as reflex.Reflexes perform many types of jobs for our central nervous sustem.such as:
they protect us from danger.they help us move our body.they help us to see etc..HOPE THIS HELP YOU..
IF U FOUND THIS HELPFUL THEN MARK IT AS BRAINLIEST..
THANK YOU
DPIP was used in the photosynthesis lab to measure the
-Light dependent reactions
-Production of O2
-Light Independent reaction (a.k.a. Calvin cycle)
-Production of CO2
Answer:
Light dependent reactions
Explanation:
DPIP stands for Dichlorophenolindophenol. It is a chemical compound that is used as a redox dye.
DCPIP is blue when it is oxidized DCPIP is colorless when it is reduced.
DCPIP measures the rate of photosynthesis. The redox dye is decolorized by chemical reduction when it is exposed to light in the process of photosynthesis.
DPIP was used in the photosynthesis lab to measure the light dependent reactions.
According to the information in the passage, before purchasing bird food for a bird feeder a person should
es )))
A)
plant trees and shrubs in the yard.
B)
purchase a birdbath and a birdhouse.
know what kinds of birds are common to the area.
D
create a bird-friendly environment in the backyard.
Answer:
1 is C) know what kinds of birds are common to the area.
2 is D) main idea and details
Explanation:
I had it on a test hope this helps
Answer: C
Explanation: Know what kinds of birds are common to the area
Which of these is found within all cells?
Organ systems
Organs
Tissues
Molecules
Answer:
tissues
Explanation:
cells make tissues and tissues make organs
which of the following describes an interaction where an organism of one species benefits and an organisms of a different species is not significantly affected?
Which is a possible path of the movements of nitrogen in the nitrogen cycle?
(A) soil - airplants air animals - soil
B) soil animals plants
soil
animals soul plants - air
(D) air - soil plants animals soil - air
Answer:
B) soil animals plants
soil
Explanation:
Nitrogen is taken up by plant roots and combined into organic substances in the plant, such as enzymes, proteins and chlorophyll. ... Plant and animal wastes decompose, adding nitrogen to the soil. Bacteria in the soil convert those forms of nitrogen into forms plants can use. Plants use the nitrogen in the soil to grow.
Identify the terms described by selecting the correct word from the drop down menu
Anything that has mass and take up space
Atom
Element
Matter
The part of earth in which life exists including land water and air
Thermosphere
Biosphere
Exosphere
Answer:
1. Matter
2. Biosphere
Explanation:
as a human population grows, what happens to our natural- resources requirement
Answer:
Need for natural resources increase
Explanation:
Which is an example of mechanical weathering
Answer:
Examples of mechanical weathering include frost and salt wedging, unloading and exfoliation, water and wind abrasion, impacts and collisions, and biological actions.
Explanation:
salt!! :)
hope this helped c:
Given the following evidence; which does not support the theory of Continental Drift? A) climate
B) fossils of plants and animals
C) magnetic strips in the ocean floor
D) land features match up (like mountains) on different continents
The theory of Continental Drift does not shows evidence about climate. Thus option A is correct.
What is continental drift?Continental drift is defined as the idea that the positions of Earth's continents have changed over geologic time, giving the impression that they have "drifted" across the ocean floor.
It can also be defined as the continents moving horizontally at a huge scale in relation to one another and the ocean basins throughout the course of one or more geologic epochs.
The theory of plate tectonics, which integrates this idea, had this idea as a key antecedent.
The fit of the continents, the distribution of prehistoric fossils, rocks, and mountain ranges, as well as the placements of prehistoric climatic zones, were all used as evidence for continental drift.
Thus, the theory of Continental Drift does not shows evidence about climate. Thus option A is correct.
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in 1994, naturalists in Australia discovered a new genus and species of conifer, Wollemia nobilis, growing in a remote area not far from the city of Sydney. This was the first new conifer discovered since 1948. Wollemi pine (not really a pine) is in a family that had global distribution in the Crustaceous period. Scientists used a variety of different evidence to decide where this rare tree should be placed in the "Tree of Life." What evidence would be necessary to determine that this is in the phylum Coniferophyta?
Answer:
The following should be the characteristics exhibited by the plant to place it under the phylum Coniferophyta:
1. Only the male cones should possess the tendency to generate pollens.
2. The plant should have the stems, leaves, and roots in the form of vegetative organs.
3. Possess the tendency to generate pinecones.
4. The plant should possess leaves in the form of a needle that stays green throughout the annum.
5. The leaves of the plants should possess cuticle deposition.
The first step in the metabolism of triacylglycerols is the hydrolysis of the ester linkage by a lipase. Three different lipases play major roles in triacylglycerol metabolism in animals:
pancreatic lipase (a water‑soluble lipase secreted into the intestine), lipoprotein lipase, and hormone‑sensitive lipase.
a) For the given statements, identify which lipase best fits the description. If none of the lipases apply, choose "none of the lipases."
1. This enzyme hydrolyzes adipose triacylglycerols.
2. This enzyme requires bile salts for activity.
3. This enzyme is found in lysosomes.
4. This enzyme hydrolyzes serum triacylglycerols.
Answer:
The internal secretion sensitive enzyme concerned within the reaction of fatty triacylglycerol’s. Pancreatic gland enzyme concerned within the reaction of nutritional oil materials in the system alimentation coming back from nutrition and born-again into fatty acids and tangled in the unleash of digestive fluid salts into the internal organ. No accelerator initiate in lysosomes- no one of the lipases (presence of acid lipase in Lysosome) Pancreatic gland enzyme concerned within the reaction of body fluid triacylglycerol’s.What is the original source of energy in a food web?
Answer:
the sun or grass
Explanation:
first the sun because the sun helps produce photosynthesis which grows the grass so that other animals can eat from the grass
Select the statements that accurately describe endocytosis.
a. The cell forms proteins that move substances into the cell against a concentration gradient.
b. The cell selectively filters small nutrients through specialized membrane pores.
c. The cell membrane pinches off to form an extracellular vesicle joined to the cell by filaments.
d. The cell membrane engulfs a particle in the cytoplasm and forms a vesicle around it.
e. The cell expends energy to transport materials into the cytosol.
Answer:
The correct answer is:
The cell membrane engulfs a particle in the cytoplasm and forms a vesicle around it. (d.)
Explanation:
Endocytosis is a type of active transport, where particles such as (large molecules, parts of cells, and even whole cells) are moved into cells.
The various types of endocytosis has a common feature of:
1. invagination of plasma membrane forming pockets around the target particle.
2. the pocket pinches off from original plasma membrane
3. forming a new intracellular vesicle containing the target particle.
The different types of endocytosis includes
a. pinocytosis (cell drinking): takes in extracellular fluids
b. phagocytosis (cell eating): large solid particles are taken in by cells
c. receptor-mediated endocytosis: here, receptor proteins on the cells surface, binds to complementary proteins on the surface of the target particles before endocytosis occurs.
