Explain reproduction in gymnosperms. Biology

Answers

Answer 1
gymnosperm, any vascular plant that reproduces by means of an exposed seed, or ovule—unlike angiosperms, or flowering plants, whose seeds are enclosed by mature ovaries, or fruits. The seeds of many gymnosperms (literally “naked seeds”) are borne in cones and are not visible until maturity.

Related Questions

The lowest range of dissolved oxygen levels which will support a diverse population of organisms is:

The lowest range of dissolved oxygen levels which will support a diverse population of organisms is:
A. 2-3 ppm
B. 4-5 ppm
C. 6-7 ppm
D. 8-9 ppm

Answers

Dissolved oxygen can range form 0-18 mg/L, but most natural water systems require 5-6 mg/L to support a diverse aquatic population. 2. A dissolved oxygen level of 9-10 mg/L is considered very good. Generally, a higher dissolved oxygen reading indicates a better water quality.

Give an example of an adaptation

Answers

An adaptation is any characteristic that helps a plant or animal survive in its environment. A penguin's feathers are an adaptation. For example, animals that live in cold places have adaptations to keep them warm. Plants that live in dry areas have adaptations to help them conserve water.

Answer:

Adapting to a new environment is an example of adaptation.

Explanation:

Adaptation means to be able to adjust to something new.

It is the often the brightly colored, fragrant, and showy part of the flower that attracts the birds and insects that pollinate them and a surface for the pollinator to rest on.

Answers

petals attract birds and insects that pollinate them

Answer:

petals

Explanation:

ye

What are some similarities and differences between an angiosperm and a gymnosperm? PLEASE

Answers

Answer:

Here are some similarities and differences

Explanation:

Both are more highly evolved than nonvascular plants, both are vascular plants with vascular tissue that live on land and reproduce by making seeds, both are classified as eukaryotes

Only angiosperms are known as flowering plants, many have blossoms and fruits that contain seeds and the typically drop their leaves when the seasons change their leaves are flat and are seasonal in their life cycle

Gymnosperms produce uncovered seeds, most have green needle-like leaf structures, they are generally evergreen

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Answers

Answer:

ddddddddddddddddddd

Explanation:

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what birds is a likely biological explanation for The
Mothman?

Answers

Answer:

owl is a like biological explanation for mothman......

Dead plant and animal matter is called?

Answers

Answer:

Humus is dark, organic material that forms in soil when plant and animal matter decays.

In ferns, the sporophyte produces
A. cones, which grow into a gametophyte.
B. gametes, which grow into a gametophyte.
C. spores, which grow into a gametophyte.
D. seeds, which grow into a gametophyte.

Answers

The answer is C hope it helps :)

Why are nucleic acids essential for life

Answers

Answer:

Nucleic acids are the most important macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.

Suppose that a patient is diagnosed with a new disease caused by the buildup of waste material in the body's cells. Which organelle is most likely malfunctioning in the patient's cells?

a) Golgi apparatus.
b) lysosome.
c) ribosome.
d) endoplasmic reticulum.​

Answers

Lysosome organelle is most likely malfunctioning in the patient's cells (option b),.

The organelle most likely malfunctioning in the patient's cells is the lysosome. Lysosomes are membrane-bound organelles that contain enzymes responsible for breaking down waste materials, cellular debris, and foreign substances. They play a vital role in cellular waste disposal and recycling.

In this case, the patient is diagnosed with a disease caused by the buildup of waste material in the body's cells. This suggests that there is a problem with the breakdown and disposal of waste materials within the cells.

The Golgi apparatus is responsible for modifying, sorting, and packaging proteins for transport within or outside the cell. It is not directly involved in waste material breakdown.

Ribosomes are responsible for protein synthesis and are not directly involved in waste material breakdown either.

The endoplasmic reticulum (ER) is involved in protein synthesis, lipid metabolism, and detoxification. However, its dysfunction would not directly result in the buildup of waste material in the cells.

Therefore, considering the role of lysosomes in waste material breakdown, it is most likely that the malfunctioning organelle in the patient's cells is the lysosome. This malfunction would lead to the accumulation of waste material, causing the disease symptoms.

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Define nitrogen but it has to be only five words

Answers

Answer:

gas, 78% of the atmosphere

Explanation:

Answer:

Image result for Define nitrogen but it has to be only five words

nitrogen (N), nonmetallic element of Group 15 [Va] of the periodic table. It is a colourless, odourless, tasteless gas that is the most plentiful element in Earth's atmosphere and is a constituent of all living matter. Fast Facts.

Explanation:

I really hope this helped you. :)

2 pts
Question 3
All of the following are principles of the cell theory EXCEPT
water is the main ingredient in every cell
a
bo the cell is the smallest unit of life
C o all new cells come from preexisting cells
do all living things are made of one or more cells

Answers

Answer:

A (if it is a multi-answer question) also B. Even also C.

Explanation:

C is definitely not the correct answer because germs and microbes are living things and are made of only 1 cell. The cell is also the smallest unit of life because it is called "the building blocks of life", so it has to be the smallest unit of life. Even C, because cells multiply using an existing cell, just like we humans reproduce. First, it duplicates all of its parts, or contents, including the DNA, then they split to create a new cell,  (or if i'm incorrect, 2).

Use the chart to help.  

Proteins are polymers of amino acids linked by ______. Multiple choice question. hydrogen bonds phosphodiester bonds covalent bonds peptide bonds

Answers

Answer:

peptide bonds

Explanation:

Amino acids are linked together into linear chains called polypeptides

Which gene determines what letter is used to represent a pair of traits?

Answers

Answer:

The dominant gene determines what letter is used to represent a pair of letters.

Explanation:

Example: If brown eyes are dominant (B) and blue eyes are recessive (b) then...

BB means: Brown

Bb: still means brown because there is still a dominant gene

bB: still means brown because there is still a dominant gene

bb: means blue, no dominant gene

Hope this helps!

Why is ATP known as the energy currency?
5 line answer plz

Answers

Answer:

ATP is commonly referred to as the "energy currency" of the cell, as it provides readily releasable energy in the bond between the second and third phosphate groups. ... As a result, cells within the human body depend upon the hydrolysis of 100 to 150 moles of ATP per day to ensure proper functioning.In addition to providing energy, the breakdown of ATP through hydrolysis serves a broad range of cell functions, including signaling and DNA/RNA synthesis. ATP synthesis utilizes energy obtained from multiple catabolic mechanisms, including cellular respiration, beta-oxidation, and ketosis.                

  Explanation: is this good enough?

Answer:

Because its a sequence in which molecules can store their own energy and use it when needed such as in a chemical reaction , note that this is the main reason some molecules stay dormant during a chemical reaction and that is because they didn't use ATP

Explanation:

The principal molecule for storing and transferring energy in cells. It is often referred to as the energy currency of the cell and can be compared to storing money in a bank. ... AMP can then be recycled into ADP or ATP by forming new phosphoanhydride bonds to store energy once again. (This Is A Web Response) but feel free to use mine if it helps its a more simpler term.

during the process of cellular resperation energy is released from

Answers

Answer:

glucose

Explanation:

During cellular respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate)

which of the following is a property of water?

a. polar molecule
b. regulates temperature
c. universal solvent
d. all of the above

Answers

Answer:

All of the above

Explanation:

The main properties of water are its polarity, cohesion, adhesion, surface tension, high specific heat, and evaporative cooling, which essentially categorizes all of the above.

Answer: All of the above

For people who need to study this

Answers

Answer

ok

Explanation:

Answer: okay thank you sir!

Have a great Day/Night

In the rain forest, the thick foliage allows limited sunlight to filter through to the forest floor. Which wild cat species is best adapted to living in the rain forest?

Answers

Answer

D)Ocelot because they are medium sized cats that live in rain forests and grasslands.Ocelots appear to be better adapted to habitat disturbance and can live in disturbed forests. However, they can be found in a variety of habitats in Belize, from dry scrub to the dense forests.

A cross between two mice with long tails and brown fur produced the four types of offspring as listed.
• Long-tailed with brown fur
• Long-tailed with white fur
• Short-tailed with brown fur
• Short-tailed with white fur
Which genetic mechanism best explains the results of this cross?
A independent assortment
B. Crossing-over
C. gene linkage
D. dependent assortment

Answers

Answer:

B

Explanation:

The genetic mechanism that best explains the results of this cross is independent assortment. The correct option is A.

What is independent assortment?

According to Mendel's law of independent assortment, alleles from two (or more) different genes are sorted into gametes independently of one another.

In other words, the allele received by a gamete for one gene has no effect on the allele received for another gene.

Independent assortment occurs when alleles from at least two genes are assorted into gametes independently.

As a result, the allele inherited by one gamete has no effect on the allele inherited by the other gametes. Mendel observed that the transmission of various genes appeared to be separate events.

Independent assortment is the genetic mechanism that best explains the results of this cross.

Thus, the correct option is A.

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Which of the following statements BEST describes photosynthesis?
Photosynthesis uses light energy to convert glucose and carbon dioxide to oxygen and water.
Photosynthesis uses light energy to convert carbon dioxide and oxygen to glucose and water.
Photosynthesis uses light energy to convert carbon dioxide and water to glucose and oxygen.
Photosynthesis uses light energy to convert glucose and oxygen to carbon dioxide and water.

Answers

The answer is the third option! Photosynthesis is the process in which plants convert carbon dioxide, water, and light energy into oxygen and glucose! Have a great day, I hope this helped! ^_^

Answer:

Explation photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

Energy flow through an
ecosystem is
A. completely random
B. a one-way pathway
C. always towards the Sun
D. a dual-directional pathway

Answers

Energy flow is the flow of energy through
living things within an ecosystem. All living
organisms can be organized into producers
and consumers, and those producers and
consumers can further be organized into a food
chain. Each of the levels within the food is a trophic level.

In terms of structure and function how do the vacuoles in a typical plant cell compare to those of a typical animal cell

Answers

Answer:

Vacuoles in animal cells do NOT help the cell take its shape, however, in plant cells, vacuoles are larger, and DO affect the shape of the cell.

The function of the vacuole in plants is different from that in animals, as the vacuole in animals is smaller, while in plants it is larger and pushes the nucleus to one side while consisting of water and other materials.

What is the significance of the vacuole in plants and animals?

Vacuoles are cell organelles found in both plants and animals, in plants, vacuoles are large, fluid-filled structures that occupy a large portion of the cell, and they perform several important functions, including storing water and helping to maintain the shape of the cell, while in animals, vacuoles are smaller and less in number than in plants, as they have a variety of functions, like storing waste materials, etc.

Hence, the function of the vacuole in plants is different from that in animals, as the vacuole in animals is smaller, while in plants it is larger and pushes the nucleus to one side while consisting of water and other materials

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Activity 3:
C : Contains -
E : Enable -
L : Located -
L : Layered -
S : Smallest -

Answers

Answer:

what do you need help on?????

Explanation:

What flower has an ugly bud but a beautiful blossom?

Answers

Explanation:

Caladiums are tropical to sub-tropical plants grown mainly for their exquisite, colorful leaves. These foliage plants occasionally have a surprise up their metaphorical sleeve. Blooming on caladium plants isn’t common, but tubers planted in favorable locations tend to produce small flowers. These inflorescences aren’t as impactful as a rose or dahlia but have their own charm and, sometimes, a strong pleasant scent. There are several schools of thought on what to do with caladium flowers. While some growers believe pinching them off helps force energy to the tubers, others leave the small blooms with no ill effect on the plant.

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what was the key factor that allowed Hershey and Chase to show that DNA alone carried the genetic information of a bacteriophage?

Answers

Explanation:

DNA contains phosphorus, but protein does not. Protein contains sulfur, but DNA does not. This allowed radioactive phosphorus and radioactive sulfur to identity each molecule specifically.

[tex] \mathbb \fcolorbox{green}{red}{ STAY \: STRONG}[/tex]

[tex] \mathfrak \fcolorbox{green}{red}{BE \: BRAINLY }[/tex]

In the DNA  structure there is phosphorus present while protein does not contain phosphorus but it contains sulfur while DNA does not which allowed radioactive phosphorus and radioactive sulfur to identity each molecule specifically.

What is Hershey and Chase experiment?

Hershey-Chase experiment was the final experiment which is also called as the Waring Blender experiment. In this experiment, they showed that phages only injected their DNA into host bacteria, and that the DNA served as the replicating genetic element of phages.

They used this experiment to prove that DNA is the genetic material. [tex]T_2[/tex] Bacteriophage that was grown in isotopic medium radioactively labels a specific viral component. Two types of isotopic media were used.

Viruses that were grown in radioactive sulfur (35S) contained radiolabeled proteins.Viruses grown in radioactive phosphorus (32P) had radiolabeled DNA

Next, the virus was allowed to infect a bacterium (E. coli) and the virus and bacteria were then separated through centrifugation. After centrifugation, the larger bacteria formed a solid pellet, while the smaller viruses remained in the supernatant. The pellet of bacteria was found to be radioactive when infected with 32P-virus (DNA), but not with 35S-virus (protein).

This provided proof that DNA was the genetic material because DNA had been transcribed into bacteria, not proteins.

Thus, in the DNA  structure there is phosphorus present while protein does not contain phosphorus but it contains sulfur while DNA does not which allowed radioactive phosphorus and radioactive sulfur to identity each molecule specifically.

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The Earth's lithosphere ON THE CRUST is broken up into sections known as:
A asthenosphere
B layers
tectonic plates
D) atmosphere

Answers

The lithosphere is divided into chunks known as tectonic plates.
The lithosphere is the rocky outer part of the Earth. It is made up of the brittle crust and the top part of the upper mantle. The lithosphere is the coolest and most rigid part of the Earth.

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In a cohort study of a group of people born in a certain year, what characteristic is used from the cohort. A. age B. occupation C. behavior D. geography

Answers

Answer:

D.

Explanation:

give me answer all these question ​

Answers

Answer:

please write the questions I can't tap the picture.

predict the average number of different trna molecules that can be recognized by a single type of aminoacyl trna synthetase.

Answers

Answer: Each tRNA is charged with a particular amino acid at its 3' end. Although there are 61 codons in the universal genetic code that specify amino acids, most organisms posess fewer than 45 different tRNAs.

Explanation:

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