Danny has taken a cross section of a seed. Which of the following are the parts that he will see? pollen grain, sperm, and egg stored food, flower, and pollen grain seed coat, stored food, and an embryo cone, zygote, and seed coat

QUESTION POSTED AT 18/01/2020 - 06:05 AM

Answered by admin AT 18/01/2020 - 06:05 AM

The right answer for the question that is being asked and shown above is that: "seed coat, stored food, and an embryo." Danny has taken a cross section of a seed. The follwoing parts that he will see is that of seed coat, stored food, and an embryo

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Renal pelvis
The part of the kidney that collects the urine before it passes down the ureter


















ANSWERED AT 21/02/2020 - 09:08 AM


QUESTION POSTED AT 21/02/2020 - 09:08 AM

How do proteins in your cells access the energy stored in atp?

The proteins access energy when ATP is turned into ADP by losing the terminal phosphate and releasing covalent bond energy.

Hope this helped!

ANSWERED AT 20/02/2020 - 11:15 PM


QUESTION POSTED AT 20/02/2020 - 11:15 PM

What is the anatomy of a flower provide a brief explanation of the structures involved in pollination and fertilization?

A flower has the following:
Petals - segments of the flower
Sepal - outer parts of the flower at the bottom covered in bud
Stamen - produces pollen in the flower
Anther - where pollen is produced
Pistil - produces ovary of the flower
Stigma - where pollen germinates

Pollination occurs when insects like bees and butterflies transfers the pollen from one flower to another. Once transferred, fertilization begins.

ANSWERED AT 20/02/2020 - 11:10 PM


QUESTION POSTED AT 20/02/2020 - 11:10 PM

What are two parts used to carry the microscople?

The base and the arm and/or neck

ANSWERED AT 20/02/2020 - 11:06 PM


QUESTION POSTED AT 20/02/2020 - 11:06 PM

Lable all the parts of a of a plant cell and what it does

Nucleus- Contains genetic material which controls the activities of the cell.
Cytoplasm- Most chemical processes take place here, controlled by enzymes.
Cell membrane- Controls the movement of substances into and out of the cell.
Mitochondria- Most energy is released by respiration here.
Ribosomes- Protein synthesis happens here.
Cell wall- Strengthens the cell.
Chloroplasts- Contain chlorophyll, which absorbs light energy for photosynthesis.
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ANSWERED AT 20/02/2020 - 10:54 PM


QUESTION POSTED AT 20/02/2020 - 10:54 PM

Why are mushrooms important to the food chain? A. They recycle nutrients into the ecosystem. B.They produce food energy for other living things. C.They recycle oxygen into the atmosphere. D.They consume excess herbivores in the ecosystem.

A. Mushrooms are decomposers, so they eat dead plant matter and give out nutrients. Hope this helps! :)

ANSWERED AT 20/02/2020 - 09:58 PM


QUESTION POSTED AT 20/02/2020 - 09:58 PM

1. production of needed energy lysosomes 2. production of protein Golgi apparatus 3. flat sacs that package and ship vesicles outside the cell endoplasmic reticulum 4. store foods or pigments mitochondria 5. tubes serving as transportation channels ribosomes 6. contain digestive enzymes plastids

Answer:

The correct answer will be-

1. production of needed energy- mitochondria

2.  production of protein- ribosomes

3.  flat sacs that package and ship vesicles outside the cell- Golgi apparatus

4. store foods or pigments- plastids

5. tubes serving as transportation channels- endoplasmic reticulum

6. contain digestive enzymes- Lysozymes

Explanation:

The cellular organelles perform a different function in a cell. Each organelle carries out distinct and specific functions.

1. Mitochondria- double-membrane organelle which performs the function of ATP synthesis. Since statement mentioned the production of energy, therefore, mitochondria are the correct answer.

2. Ribosomes- the organelle associated with the synthesis of proteins during the translation process. Thus, the ribosome is correct option.

3. Golgi apparatus- organelle is associated with the packaging and modification of the protein to be transported. Thus, the Golgi apparatus is the correct option.

4. Plastids- the organelle which contains pigments and provides color to the structure like green pigment in the chloroplast. Thus, plastid is the correct answer.

5. Endoplasmic reticulum- Orgenelle which are tubular in appearance and carry tmodify the proteins synthesised on the ribosomes. Thus, the endoplasmic reticulum is the correct option.

6. Lysosomes- The orgnelle which contains hydrlytic enezymes which hydrolyse every biomolecule. Thus, the lysosome is the correct answer.

ANSWERED AT 20/02/2020 - 09:39 PM


QUESTION POSTED AT 20/02/2020 - 09:39 PM

Look at the food web shown above. Which of the organisms act as consumers in this ecosystem? A. mice B. bees C. black bears D. all of these

D. all of these (they are all consumers even though they are different sizes)

ANSWERED AT 20/02/2020 - 09:33 PM


QUESTION POSTED AT 20/02/2020 - 09:33 PM

A growing human population means more food is needed. Improvements in farming can help meet this demand. Which of the following have helped provide more food? fertilizers, pesticides, and more efficient farming practices more people following a vegetarian diet an increase in the number of farmers willing to work long hours an increase in the number of people moving away from the city to live on farms

The answer is definitely the first one, the reasons are: A.) Fertilizer helps plants grow faster and they help the plant produce more.

                                                                                      B. ) Pesticides kill harmful insects that would otherwise ravage the food supply. 

                                                                                      C.) The easier it is to farm, more food you can make in a short amount of time. Allowing for higher food production.

ANSWERED AT 20/02/2020 - 09:31 PM


QUESTION POSTED AT 20/02/2020 - 09:31 PM

Vertebrates that are cold-blooded, have dry skin and scales and usually lay eggs are classified as a. amphibians b. birds c. reptiles d. mammals

Vertebrates that are cold-blooded, have dry skin and scales and usually lay eggs are classified as reptiles. For example, lizards are considered a part of this group.

ANSWERED AT 19/02/2020 - 03:04 PM


QUESTION POSTED AT 19/02/2020 - 03:04 PM

What is a beneficial reason for purchasing organic fresh fruits and vegetables rather than conventionally grown foods?

A benefit to buying organic fruit verses regular grown fruit, is that the organic fruit has not been grown or produced with harmful pesticides, or dyed with colors that are unnatural.

ANSWERED AT 19/02/2020 - 11:44 AM


QUESTION POSTED AT 19/02/2020 - 11:44 AM

At the beginning of cellular respiration, energy is stored in the bonds of (blank) molecules. At the end of cellular respiration, energy is stored in the bonds of (blank) molecules

Answer -
ADP (adenosine diphosate)
Then comes
ATP (adenosine triphosphate)
(Confidently Correct)
Reason -
ADP is the starting molecule for the reaction which occurs at the start as it moves down the chains such as the kreb cycle, the nutrients is then packed into and converted into ATP for Storage and later use for the cells required energy.

ANSWERED AT 19/02/2020 - 12:24 AM


QUESTION POSTED AT 19/02/2020 - 12:24 AM

Compared to a normal body cell a egg cel contains?

Half of the number of chromosomes

ANSWERED AT 18/02/2020 - 11:48 PM


QUESTION POSTED AT 18/02/2020 - 11:48 PM

Some fungi secrete substances that are toxic to bacteria that compete with them for food. Scientists have used their knowledge of this ability of fungi in order to produce which of the following substances? Why?A) yogurtB) fertilizersC) plasticD) antibiotics

D) antibiotics since these substances that fungi secrete can kill the bacteria that is in your immune system when your are sick 

ANSWERED AT 18/02/2020 - 11:44 PM


QUESTION POSTED AT 18/02/2020 - 11:44 PM

What part of the cell theory explains why organisme grow?

The third part of the cell theory surely explains how organisms grow, but unfortunately not why. It says that every living cell originates as a result of the division of a preexisting cell and no cell can spontaneously self-assemble as it was believed till the middle of the 19th century according to the anomalous generation theory.

ANSWERED AT 18/02/2020 - 11:36 PM


QUESTION POSTED AT 18/02/2020 - 11:36 PM

A student designs an experiment to see if detergent affects the growth of seeds. He sets up 10 seed pots. Five of the seed pots will receive a small amount of detergent in the soil and will be placed in the shade. The other five seed pots will not receive detergent and will be placed in the sun. All 10 seed pots will receive the same amount of water, the same number of seeds, and the same type of seeds. He allows the seeds to grow for two months and charts their growth every two days. What is wrong with his experiment? A) More than one variable is being tested. B) The student should have a larger number of pots. C) There is no way of measuring the outcome. D) There is no control set up.

Hello there!

A student designs an experiment to see if detergent affects the growth of seeds. He sets up 10 seed pots. Five of the seed pots will receive a small amount of detergent in the soil and will be placed in the shade. The other five seed pots will not receive detergent and will be placed in the sun. All 10 seed pots will receive the same amount of water, the same number of seeds, and the same type of seeds. He allows the seeds to grow for two months and charts their growth every two days. What is wrong with his experiment?

A) More than one variable is being tested.

ANSWERED AT 18/02/2020 - 02:54 PM


QUESTION POSTED AT 18/02/2020 - 02:54 PM

A section of this dna molecule that codes for a specific inherited trait is called

Answer:

C) gene

Explanation:

I just took the quiz

ANSWERED AT 18/02/2020 - 02:44 PM


QUESTION POSTED AT 18/02/2020 - 02:44 PM

Animals utilize different reproductive strategies to guarantee the production of offspring. Earthworms are hermaphroditic. What unique reproductive characteristic do earthworms possess? a. They reproduce only by asexual means. b. They produce both eggs and sperm. c. They have gemmules that are fertilized by amoebocytes. d. They possess only male amoebocytes.

Animals utilize different reproductive strategies to guarantee the production of offspring. Earthworms are hermaphroditic. While earthworm possess the following characteristics
They produce both eggs and sperm.

ANSWERED AT 18/02/2020 - 02:33 PM


QUESTION POSTED AT 18/02/2020 - 02:33 PM

Black and white coloration in cows is dominant to brown and white. Black and white cows were crossed over several years and the following offspring were produced: 8 black and white and 3 brown and white. What is the MOST probable genotype of each parent? A) BB X BB B) BB x bb C) Bb x Bb D) Bb x bb

The answer is C) Bb x Bb

B - the allele for black and white coloration
b - the allele for brown and white coloration

There are in total 11 offspring (8 black and white and 3 brown and white),
In a monohybrid cross when both parents are heterozygous (Bb), the phenotype ratio is 3:1. We have ratio 8:3.

The ideal ratio would be 9:3 because it is the same as 3:1.
Therefore, the parents Bb and Bb will have 
8 black and white and 3 brown and white with the ration 8:3 ≈ 9:3 = 3:1

ANSWERED AT 18/02/2020 - 02:32 PM


QUESTION POSTED AT 18/02/2020 - 02:32 PM

What structure serves as a passageway for both air and food? A. pharynx B. trachea C. larynx D. bronchus

pharynx tructure serves as a passageway for both air and food, this quality of pharynx make them different from the rest of the options.

ANSWERED AT 18/02/2020 - 02:27 PM


QUESTION POSTED AT 18/02/2020 - 02:27 PM

Explain the relationship between crossing over and genetic variation.

Crossing over is the process by which genetic material is exchanged by non-sister chromatids during meiosis.


Crossing over results in a new combination of genetic information for the cell for a specific trait.


Crossing over ensures that organisms are not identical from generation to generation.


Genetic recombination allows for a variation in genetic material that is passed through the generations

ANSWERED AT 18/02/2020 - 02:05 PM


QUESTION POSTED AT 18/02/2020 - 02:05 PM

One of the newest applications of cell technology is called cybrid embryos. This process involves replacing the nuclear material of an animal cell with human nuclear material. How might this process affect public policies about research by using stem cells?

Answer:

In such type of research, where human nuclear material is used for the development of an embryo. So the same policies and concerns are applied as it is about the use of human embryonic stem cell.

Many scientists spent there many years on such research and their work has been standstill because of laws about stem cell research. Some laws ban the use of such an application.

Example: Dickey Amendment.

ANSWERED AT 18/02/2020 - 01:58 PM


QUESTION POSTED AT 18/02/2020 - 01:58 PM

Describe the pathway of taste reception from the point where food comes into contact with the tongue to the point at which taste information travels to the brain briefly describe the structure and function of each organ along the pathway

The step  by step process of taste sensation and perception is as follows:

1. The food that we eat resides on the surface of tongue

2. The chemicals with in the food gets dissolved and form tastants

3. Tastants are received by the taste bud and the papillae though the gustatory hairs.  

4. Taste receptors after  stimulation by tastants convert the tanstants into sensory information  

5. These sensory information are then passed to the brain

6. The sensory information travel on the neural pathways along the facial cranial nerve and goes to the thalamus and then to the primary gustatory cortex for interpretation

ANSWERED AT 18/02/2020 - 01:55 PM


QUESTION POSTED AT 18/02/2020 - 01:55 PM

After Sophie eats, her body breaks down the food to use as an energy source when she runs. This is an example of which type of energy conversion?

Answer: no its chemical to mechanical

i took this in a test

Explanation:

ANSWERED AT 18/02/2020 - 01:52 PM


QUESTION POSTED AT 18/02/2020 - 01:52 PM

In a certain species of rabbit, the gene for brown fur (B) is dominant and that for white fur (b) is recessive. A purebred brown rabbit is crossed with a purebred white rabbit. What percentage of the offspring are brown

The percentage of the offspring that are brown would be 100%, because of the allelic relationship between dominant and recessive alleles. Basically since the mode of inheritance is that of complete dominance.

ANSWERED AT 18/02/2020 - 01:22 PM


QUESTION POSTED AT 18/02/2020 - 01:22 PM