Biology High School

Which of the following molecules are needed for photosynthesis?

a
carbon dioxide and oxygen
b
water and carbon dioxide
c
glucose and oxygen
d
light and oxygen

Answers

Answer 1

Answer:

A is correct.

Explanation:

Answer 2

Answer:

b is correct

Explanation:

b water and co2

Related Questions

help please! (earth science/heat)

Answers

Answer:

4.

Explanation:

melting (changing from a solid to a liquid)

freezing (changing from a liquid to a solid)

evaporation (changing from a liquid to a gas)

and condensation (changing from a gas to a liquid).

what solution, (hypertonic, hypotonic, isotonic) would make osmosis go faster?

Answers

Answer:

Explanation:

Osmosis is the movement of WATER molecules across a semipermeable membrane (such as the cell membrane) from where there is a high concentration of water to where there is a low concentration of water. The interior of a living cell consists of cytoplasm, which is a solution of mostly water with dissolved substances such as salt.  

Now for the fun stuff!  An Isotonic solution is a solution that has the same concentration of dissolved substances as is found inside the cell.  If a cell is surrounded by isotonic solution, then there is no net movement of water across the membrane by osmosis, because the concentration of water is the same on both sides of the membrane.

A hypertonic solution is a solution with a higher concentration of dissolved substances than is found inside the cell.  If a cell is surrounded by hypertonic solution, then water will move OUT of the cell by osmosis because there is a higher concentration of water inside the cell compared to outside (where there is lots of dissolved salt, etc.)  A cell in hypertonic solution will shrink.  

A hypotonic solution is a solution with a lower concentration of dissolved substances than is found inside the cell.  If a cell is surrounded by hypotonic solution, then water will move INTO the cell by osmosis because there is a higher concentration of water outside the cell compared to inside.  A cell in hypotonic solution will swell up and, if there is no cell wall, may burst.  A silly but simple way to remember that water moves into a cell in hypotonic solution is that "hypo causes the cell to swell up like a hippo"

how many chromosomes would be found in an allopolyploid plant if its parents had diploid numbers of 2 and 10, respectively?

Answers

Answer:

6

Explanation:

The allopolyploid off spring should have 6 chromosome the gametes produced for the diploid number 2 should be 1 and for 10 it should be 5 (n/2) the two gametesof both parents gametes should then fuse ( 1+5 ) giving us 6

or

gamete chromosomes =n÷2

gametes for diploid number 2

N= 2

2÷2 = I

gamete Chromosome = 1

gamete for diploid number 10

N=10

10÷2 =5

Allopolyploid= 5+1

=6

How are seeds produced

Answers

Answer:

From other seeds

Explanation:

They grow more seeds form the one seed

Answer:

From plant reproduction.

Explanation:

Plants produce flowers to make seeds. To make a seed a flower must be pollinated. Pollen from the male part of one flower travels to the female part of another flower where the seeds are made. Most, but not all plants, have both male and female parts inside one flower. The stigma is usually in the centre and the stamens, which produce the pollen, cluster around it. The petals act like an advertisement to attract various animals, which will carry the pollen from one flower to another.

The prominent indentation on the medial surface of the kidney is the:

Answers

Answer:

The hilus

Explanation:

Each kidney has a prominent medial indentation called the hilus

3. The fact that the genetic code is universal suggests that:
A. All organisms evolved from separate original ancestors.
B. Life forms have a common evolutionary ancestry.
C. Protein makes up the genetic material.
D. Evolution does not really occur.

Answers

Answer:

B. Life forms have a common evolutionary ancestry.

Explanation:

A. All organisms evolved from separate original ancestors.

-> We know this is not true. If organisms evolved from separate ancestors, they would have different genetic code.  

C. Protein makes up the genetic material.

-> This was proven false in Hershey–Chase experiment.

D. Evolution does not really occur.

->This one's obviously false as speciation happens regularly.

you can find a nucleus in the cells of human,protists, bacteria and viruses

Answers

нєℓℓσ тнєяє!

Bacteria lack a nucleus, mitochondria, chloroplasts and organelles. Protists can either be single-celled or multiple called. They contain a nucleus surrounded by a nuclear membrane. The DNA or genetic material of a bacteria is not surrounded by a protective membrane known as a nuclear membrane.

I really hope this helps! Have an amazing day/evening/night!

Hugs, Kiwi <3

What is the defination for monocots and it's characteristics?

Answers

Explanation:

Definition of monocot

: a chiefly herbaceous angiospermous plant (such as a grass, lily, or palm) having an embryo with a single cotyledon, usually parallel-veined leaves, and floral organs arranged in multiples of three : monocotyledon Monocots account for a quarter of all flowering plants.

when preparing pure cultures, dilution is necessary for

Answers

Dilution is necessary during pure culture preparation to reduce the bacterial load and allow readable colonies to grow.

Dilution of bacteria culture is carried out in comparison to McCfarlan standard so as to have a decent number of bacteria that will not be too numerous or too little to observe the growth of distinct colonies during culture preparation.

Without dilution, colonies may form but may be too numerous to count. Too much dilution may also lead to no growth in the culture plates.

More on pure culture preparation can be found here: https://brainly.com/question/9886600?referrer=searchResults

Process that requires oxygen

Answers

Answer:

Cellular respiration

Explanation:

Which group shown in this figure contains the highest biodiversity

Answers

Answer:

insects

I think

hope this helps and I am not sure

1.3.1 Project - Semester 1 Honors Biology Project, Part 1 (Project) PLEASE DONT KNOW WHAT IT TOPICS IT MEANS TO CHOOSE FOR THIS PROJECT

Answers

Answer:

This is very vague. I am pretty sure that there are other instructions.

organisms that belong to the same ___ are most closely related.

Answers

Answer:

Family

Explanation:

-------------------1--------2-------------3

Kingdom Animal --Animal ---Animal

Phylum Chordate- Chordate - Chordate

Class Mammal - Mammal- Mammal

Order Primate Carnivore Carnivore

Family Hominidae Felidae Felidae

Genus Homo Panthera Felis

Species Sapiens Leo Domesticus

Organisms 2 and 3 are most closely related because they have the same family name. Organism 2 is a lion, organism 3 is a common housecat, and organism 1 is a human.

A small inflamed elevation filled with bacterial fluid and pus and appear red and cloudy or white is known as a: Select one: a. milia b. pustule c. cystic acne d. seborrhea

Answers

Answer:

C. Pustule

Explanation:

Why do organisms perform fermentation? in short and simple plsss

Answers

Answer: Because muscle cells cannot get oxygen fast enough to meet their energy needs through aerobic respiration.

Match each part of the lymphatic system with the correct label.

Answers

Answer:

1 Cervical Lymph Nodes

2 Right Lymphatic Duct

3 Axillary Lymph Nodes

4 Thoracic Duct

5 Cisterna Chyli

6 Peyer's Patches

7 Inguinal Lymph Nodes

Explanation: are correct

Answer:

1 Cervical Lymph Nodes

2 Right Lymphatic Duct

3 Axillary Lymph Nodes

4 Thoracic Duct

5 Cisterna Chyli

6 Peyer's Patches

7 Inguinal Lymph Nodes

Explanation:

Plzzz help me I need help I gotta turn this in tomorrow

Answers

Answer: 4.

Explanation:

what are the different variations of genes called?

Answers

Answer: Different versions of a gene are called alleles.


The organelles that break down lipids, carbohydrates, and proteins into
small molecules that can be used by the cell are called *
A. vacuoles
B. lysosomes
C. ribosomes
D. microfilaments

Answers

Answer: B
Explanation: Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.

Please label this photo pleaseee immediately

Answers

Answer: The answer is in the image.

in an experiment describe photosynthesis​

Answers

it’s something about plants. sorry i know this isn’t areal answer i need points

Which of the following facts is the best example of molecular DNA evidence that
supports the Theory of Evolution?
A. Humans and chimpanzees share between 95% and 98.5% of their DNA.
B. The embryos of humans and chickens share similar features early in development.
C. Humans, penguins, alligators, and bats all share forelimbs with homologous structures.
D. In the fossil record, plants are found below reptile fossils. Im guessing that its A

Answers

Answer: A I think.

Explanation:

Cuz M O N K E S Are just like humans!

I think the answer is A since human beings evolved from an ape

how long after conception can you get a positive pregnancy test

Answers

Answer: Although many tests indicate you can test as soon as five days before your next period, the most accurate results will be obtained after you have missed your period and the earliest a test can provide an accurate reading is 14 days after conception. Tests differ in sensitivity in detecting HCG in the urine.

Explanation:

PLEASE HELP!! MULTIPLE CHOICE

Answers

genes control traits so when a gene is changed the trait changes

A

The answer should be A and C

what is all of the dna in a set of 23 chromosomes referred to as?

Answers

Answer: The Genome

Explanation:

a change in DNA structure that might be beneficial, harmful, or neutral. What is all of the DNA in a set of 23 chromosomes referred to as? The genome

I deperately need help

Answers

Answer:

Crohn's disease is a type of inflammatory bowel disease (IBD). It causes inflammation of your digestive tract, which can lead to abdominal pain, severe diarrhea, fatigue, weight loss, and malnutrition. Inflammation caused by Crohn's disease can involve different areas of the digestive tract in different people

Explanation:

in medice agriculture and conservation application of biotechnology the common gentic unit used is the

Answers

Answer:

I don not know about this one. I only know that agriculture is farming. Happy to help...

Explanation:

where might we see changes in concentration in nature and how could these changes affect living organisms?​

Answers

Answer:

Explanation:

Any change in the climate of an area can affect the plants and animals living there, as well as the makeup of the entire ecosystem. Some species are already responding to a warmer climate by moving to cooler locations. ... Climate change also alters the life cycles of plants and animals

we need more raw materials with recycling true or false. ​

Answers

Answer:

true

Explanation:

What do scientist use to determine the begining or end of a geologic time period?

mass extinctions


diversification of life


index fossils

supercontinent formation and movement

Answers

Answer:

i think it is c

Explanation:

The fossil forms that occur in the rocks, however, provide the chief means of establishing a geologic time scale, with the timing of the emergence and disappearance of widespread species from the fossil record being used to delineate the beginnings and endings of ages, epochs, periods, and other intervals. i am not trying to copy the other guy or girl

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