1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NeTakaya
3 years ago
9

With respect to angiosperms, which of the following is incorrectly paired with its chromosome count?

Biology
1 answer:
Ierofanga [76]3 years ago
7 0

Answer:

Megaspore—2n.

Explanation:

Angiosperms are the fruit bearing plants and reproduce by the process of sexual reproduction. The chromosome number are specific at each stage of the cell cycle of the angiosperms.

Microspores , egg are haploid. Zygote is diploid in nature. Megaspores get germinate into the female gametophytes and these are haploid in nature. Megaspores are also haploid in angiosperms.

Thus, the correct answer is option (b).

You might be interested in
Leon listed the steps involved when auxin affects plant growth in response to light. The steps are listed in random order.
masha68 [24]

The correct answer is 3,1,4,2

3 0
3 years ago
Read 2 more answers
Which statement correctly answers whether the question of alien life on this moon is scientific?
Jet001 [13]

Answer:

I think there is no life in tbe universe accept the earth.

Explanation:

6 0
3 years ago
Someone help!! will mark reasonable stuff brainliest!
DanielleElmas [232]

Answer:

this is called revolution ( when the sun gives light to the earth it takes a step closer to revolution were season of the year appear )

5 0
3 years ago
Read 2 more answers
discuss the electromagnetic spectrum and the combined absorption spectrum of chlorophylls a and b and the carotenoids. why is ch
Irina-Kira [14]

Answer:

In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space, carrying electromagnetic radiant energy.[1] It includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays.[2]

Classically, electromagnetic radiation consists of electromagnetic waves, which are synchronized oscillations of electric and magnetic fields. In a vacuum, electromagnetic waves travel at the speed of light, commonly denoted c. In homogeneous, isotropic media, the oscillations of the two fields are perpendicular to each other and perpendicular to the direction of energy and wave propagation, forming a transverse wave. The wavefront of electromagnetic waves emitted from a point source (such as a light bulb) is a sphere. The position of an electromagnetic wave within the electromagnetic spectrum can be characterized by either its frequency of oscillation or its wavelength. Electromagnetic waves of different frequency are called by different names since they have different sources and effects on matter. In order of increasing frequency and decreasing wavelength these are: radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.[3]

Electromagnetic waves are emitted by electrically charged particles undergoing acceleration,[4][5] and these waves can subsequently interact with other charged particles, exerting force on them. EM waves carry energy, momentum and angular momentum away from their source particle and can impart those quantities to matter with which they interact. Electromagnetic radiation is associated with those EM waves that are free to propagate themselves ("radiate") without the continuing influence of the moving charges that produced them, because they have achieved sufficient distance from those charges. Thus, EMR is sometimes referred to as the far field. In this language, the near field refers to EM fields near the charges and current that directly produced them, specifically electromagnetic induction and electrostatic induction phenomena.

In quantum mechanics, an alternate way of viewing EMR is that it consists of photons, uncharged elementary particles with zero rest mass which are the quanta of the electromagnetic force, responsible for all electromagnetic interactions.[6] Quantum electrodynamics is the theory of how EMR interacts with matter on an atomic level.[7] Quantum effects provide additional sources of EMR, such as the transition of electrons to lower energy levels in an atom and black-body radiation.[8] The energy of an individual photon is quantized and is greater for photons of higher frequency. This relationship is given by Planck's equation E = hf, where E is the energy per photon, f is the frequency of the photon, and h is Planck's constant. A single gamma ray photon, for example, might carry ~100,000 times the energy of a single photon of visible light.                                  

The effects of EMR upon chemical compounds and biological organisms depend both upon the radiation's power and its frequency. EMR of visible or lower frequencies (i.e., visible light, infrared, microwaves, and radio waves) is called non-ionizing radiation, because its photons do not individually have enough energy to ionize atoms or molecules or break chemical bonds. The effects of these radiations on chemical systems and living tissue are caused primarily by heating effects from the combined energy transfer of many photons. In contrast, high frequency ultraviolet, X-rays and gamma rays are called ionizing radiation, since individual photons of such high frequency have enough energy to ionize molecules or break chemical bonds. These radiations have the ability to cause chemical reactions and damage living cells beyond that resulting from simple heating, and can be a health hazard.

Explanation:

7 0
3 years ago
Please Help! giving brainiest!
olga nikolaevna [1]

Answer:

1 , 11 and 111 are correct

4 0
3 years ago
Other questions:
  • Why are sea levels rising due to climate change?
    11·2 answers
  • Where does the matter in the body of an animal come from?
    7·1 answer
  • What is the phenotype of a plant with the genotype RR
    15·2 answers
  • What would be the physical sign that a bone cannot continue longitudinal growth?
    5·1 answer
  • When is the lac operon most active?
    13·1 answer
  • When an object does not move it is because there are unbalanced forces acting on it. please help!
    11·1 answer
  • HELP MEE<br> Its about bio and its confusing
    13·2 answers
  • Which accurately describes the relationship between nutrients and life-forms in an estuary?
    14·1 answer
  • The diagram represents magnetic field lines within a region of space. The magnetic field is strongest at point
    9·2 answers
  • What is another term for irregular shape ?<br> (Zoology on sea sponges pls help)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!