please help!! thank you

Answer:

The decline was attributed to a number of factors including Increased insect resistance, the development of more effective alternative pesticides, public and user concern about negative environmental side effects—and a government ban on DDT use since 1969--all contributed to the decline.

Answer:

PLants are the most important, as the chain of energy starts there, and everything else depends on them.

Answer: More importantly, decomposers make vital nutrients available to an ecosystem's primary producers—usually plants and algae

Explanation:

The radiation emitted by the Earth's surface at 300K is 459.27 Wm -2(in power -2)

Answer:

The Calvin cycle, light-independent reactions, bio synthetic phase, dark reactions, or photosynthetic carbon reduction (PCR) cycle of photosynthesis are the chemical reactions that convert carbon dioxide and hydrogen-carrier compounds into glucose. The Calvin cycle is present in all photosynthetic eukaryotes and also many photosynthetic bacteria. In plants, these reactions occur in the stroma, the fluid-filled region of a chloroplast outside the thylakoid membranes. These reactions take the products (ATP and NADPH) of light-dependent reactions and perform further chemical processes on them. The Calvin cycle uses the chemical energy of ATP and reducing power of NADPH from the light dependent reactions to produce sugars for the plant to use. These substrates are used in a series of reduction-oxidation reactions to produce sugars in a stepwise process; there is no direct reaction that converts several molecules of CO₂ to a sugar. There are three phases to the light-independent reactions, collectively called the Calvin cycle: carboxylation, reduction reactions, and ribulose 1,5-bisphosphate (RuBP) regeneration.

Explanation:

Hope this helps! :)

Answer:

Presently, the most accepted method for constructing phylogenetic trees is a method called cladistics. This method sorts organisms into clades, groups of organisms that are most closely related to each other and the ancestor from which they descended.

Answer:

the possible phenotypes are long winged, Ll, or LL

Explanation:

Answer:

here's the answer according to what i understood by your question

Explanation:

for going to coduct a lab:

1. aim

2. material required

3. procedure

4. observation

5. conclusion

6. precautions (if necessary).

hope it helps

Answer:

Air and noise pollution can occur both indoors and outdoors. They can have natural sources or be released from anthropogenic sources. Scientists have found different ways to reduce the amount of sulfur dioxide released from coal-burning power plants. ... another option is to wash the coal to remove some of the sulfur.

Explanation:

Sulfur Dioxide

Answer:

Oxygen and glucose are the two substances needed for respiration

Answer:

XDxd

Explanation:

the recessive allele for the disease is represented by (d).

the dominant allele for not having the disease is represented by (D)

in order to not be affected, we know that the mother must have one uppercase D, so the last option is wrong. And in order to pass it on to her child, she needs one lower case d (to give to the child). So the second answer is correct. good luck :).

Carbon is non-metal and is one of the constituents of atmospheric gases and is used for various purposes. It is an element needed in glucose production.

Carbon is one of the major reactants of the photosynthesis process. Carbon along with the water vapours yields glucose which is a simple sugar. It is used from carbon dioxide in photosynthetic reactions.

Breaking of rocks, running cars and the generation of electricity does not need carbon necessarily. The process of breaking rock and electricity generation uses electrical and chemical forces, while the running of cars can use some carbon in their fuel structures.

Therefore, option C. making of glucose most likely requires carbon.

Learn more about carbon and glucose here:

https://brainly.com/question/19301770

Answer: So it is option C

Explanation: Breaking of rocks, running cars and the generation of electricity does not need carbon necessarily. The process of breaking rock and electricity generation uses electrical and chemical forces, while the running of cars can use some carbon in their fuel structures.

Explanation:

1) Egg cells only have half the DNA of the organism

2) in an egg cell the DNA from Mum and the DNA from that is mixed up rather than kept separate

3) egg cells are very large compared to the other cells

Answer:

➢ egg cells only have half the DNA of the organism.

➢ in an egg cell the DNA from mom and the DNA from dad is mixed up rather than kept separate.

➢ egg cells are very large compared to the “other cells.” Although still very small, in humans it's actually the only individual cell you can see without a microscope.

[tex]Into \: your Arms[/tex]

#CarryOnLearning

BRAINLIEST PLZZZ

Answer:

Store and transmit genetic information: nucleic acid

Are primarily used to store energy: lipids

Help regulate cell processes: proteins

Are used for main source of energy: carbohydrates

Explanation:

Nucleic acid is an important macro molecule that deals with storing and expressing genetic information. The information is encoded by Deoxyribonucleic acid for making essential proteins.

Lipids are structural components of cell membrane which store energy. They are also known as fats.

Proteins is responsible for regulating all cellular process. It is the building block of any organism

Carbohydrates when broken down into glucose release energy and hence they are the major source of energy for our body.

Hence, the correct pair is

Store and transmit genetic information: nucleic acid

Are primarily used to store energy: lipids

Help regulate cell processes: proteins

Are used for main source of energy: carbohydrates

Answer:

cooperation... if no one works together then it's more of a failure than a success

Explanation:

A growing embryo in the uterus derives nourishment through the placenta.

An embryo in the uterus gets the necessary nutrient through its connection to the placenta by the umbilical cord.

The necessary nutrients get to the embryo by diffusion from the placenta while waste materials from the embryo diffuse to the opposite side.

A network of blood vessels on the placenta makes the diffusion of nutrient/waste materials possible.

More on placental diffusion can be found here; https://brainly.com/question/4470353

Answer:

Placenta is a special tissue which is embedded in the uterine wall and helps the embryo to get the nourishment from the mother's tissue

Explanation:

Answer:

Photosynethesis

Explanation:

Answer:

D. All of the above

Explanation:

Hazardous waste is defined as waste that comprises organic or inorganic components or compounds that may have a negative influence on human health or the environment due to the waste's intrinsic physical, chemical, or toxicological characteristics.

Correct Option Is D. All of the above.

Liquids, solids, and enclosed gases can all be hazardous waste. Hazardous substances have one or more of the following characteristics: they are combustible, corrosive, lethal, or reactive. They can be waste from manufacturing operations, discarded used materials, or unused commercial products like cleaning fluids (solvents) or insecticides that have been discarded.

Answer:

A compound is a pure substance of two or more elements chemically combined elements combine during a chemical change a particle of a compound is called a molecule.

Explanation:

youre welcome

Answer:

A compound is a pure substance of two or more elements chemically combined elements combine during a chemical change a particle of a compound is called a molecule.

Explanation:

I have no clue I just know it

Mangrove forests or swamps grow in saline and humid region of the tropical and subtropical areas. They were considered unhealthy, unproductive environments.

Mangroves are special forest trees that are found in regions of high salinity. In earlier times they were considered unhealthy and unproductive for the environment.

They were seen as of no importance and the people wanted them to remove the trees so the environment can become healthy again.

Its ecological value was not known at that time and was considered a waste and mess. But now people have to account for their importance of them as they help to improve the water quality and aid as the breeding place for the fishes.

Therefore, the statement is true.

Learn more about mangroves here:

https://brainly.com/question/238731

Answer:

trueeeee

Explanation:

Answer: Enzymes replace hydrochloric acid in the manufacturing process

Explanation:

Answer:

1. visible light

- the light that humans can see - between 700 nanometers and 400 nanometers

2. ultraviolet waves (UV Rays)

- smaller frequency and higher energy than visible light- between 400 nanometers and 10 nanometers

- the sun emits UV rays - they cause sunburn

3. X-rays

- higher energy and frequency than UV rays

- X-rays can pass through skin and flesh, but not through bone, so they are used to examine bones

Answer:

B. share the data found after an experiment is concluded.

Question:

The results in a science text

O describe details involved in completing the experiment.

O share the data found after an experiment is concluded.

O give the background and purpose of an experiment.

O interpret the results of a completed experiment.

Answer:

B.DNA replication

Explanation:

Open your eyes and look the picture clearly... don't u see DNA is splitting into 2.. use ur logic Buddy

Answer:

DNA replication

Explanation:

DNA stands for Deoxyrybo nucleic acid

It replicates itself through out its life and keep the animal growing.

Answer:

Your answer is yeast

Explanation:

Hope this helped :)

Answer:

Yeast

Explanation:

I hope it will help u

Answer:

cellular respiration requires oxygen. this process is labelled as an aerobic respiration, because it needs oxygen to function

Explanation:

Aerobic respiration

chemical respiration equation:

C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP (energy)

A cell can do which of the following with

energy to give the organism the right

type of energy it needs to survive?

A abandon

B. change from one form to another

C destroy

D eliminate

B. change from one form to another