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Gelneren [198K]
2 years ago
5

What hormones are responsible for promoting cell division at the tips of plants?

Biology
1 answer:
IRISSAK [1]2 years ago
6 0

Answer:

Cytokinins promote cell division. They are produced in growing areas, such as meristems at tip of the shoot.

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. Arrange the following substances in order of increasing tendency to donate electrons
erma4kov [3.2K]

Answer:

From lowest to highest tendency to donate electrons:

NADP+, Oxygen (O2), α–ketoglutarate, Malate, Oxaloacetate

Explanation:

Electron donors are those molecules that can easily lose an electron and are known as reducing agents.

Lower the electronegativity, better the electron donor it is

Oxygen is an oxidizing agent and hence, a strong electron acceptor and not a donor.

NADP+ state for this coenzyme functions as an ideal electron acceptor rather than an electron donor

5 0
3 years ago
Sheets composed of two layers of amphipathic molecules arranged with the hydrophilic groups on the surface and the hydrophobic g
Lera25 [3.4K]

Answer:

D) bilayer membranes

Explanation:

Two lipidic bilayers compose the cell membrane. There are also proteins and glucans incrusted in between. Lipids are amphipathic molecules with hydrophilic heads -negatively charged phosphate group- and hydrophobic tails. Lipids are arranged with their hydrophilic polar heads facing the exterior and the interior of the cells, while their hydrophobic tails are against each other, constituting the internal part of the membrane. Membranes are fluid, which means that the composing molecules can move through them.

Lipids can easily change places with other neighboring lipids by lateral diffusion in the same layer. This is passive diffusion, which means that it does not need energy to happen.

Lipids can also diffuse transversally to the other layer but not as easily as lateral diffusion. Jumps between monolayers are infrequent as the lipidic polar heads meet the fatty acid barrier.

There are also other lipidic movements as rotational diffusion that imply the rotation of the molecule.  

3 0
3 years ago
What type of consumer is the hawk
frutty [35]

A hawk is a primary consumer

8 0
3 years ago
Read 2 more answers
Choose the stage that best matches the description given.
Julli [10]

Forensic entomology identifies the fauna on a dead body to make predictions about the death. C) ants, mites, and beetles frequent the body<u> 3-17 days</u> after death.

<h3>What is forensic entomology?</h3>

Forensic entomology is the forensic branch that studies the cadaveric fauna associated with a dead body to make scientific conjectures.

Cadaveric fauna usually includes different forms of invertebrate species and their stages of development. There is a predictable sequence in which different species arrive at the dead body and inhabits it, and this sequence depends on the time the individual has been dead and the decomposition state of the body.

The species inhabiting the body and their developmental stage can be used as significant data to estimate the time of death, the region, and the circumstances under which the individual died.

Stages of decomposition depend on the region, but we can make this generalization,

  • 1-3 days ⇒ adult flies and eggs, and a few larvae

  • 3-5 days ⇒ bacteria and other microorganisms act. The decomposing body produces gasses that inflate the carcass. Larvae penetrate the body, release the gasses, and the carcass collapses.

  • 5-15 days ⇒ Maggots, flies, ants, and beetles have already reached the dead body.

  • 15-25 days ⇒ Most flesh is already consumed, and the body is in the advanced stage of decay. Although the number of invertebrates is low, the diversity of species is great. There are carpet beetles, ants, skipper flies, and mites.

  • 25-50 days ⇒ Almost dry body with no flesh. Some arthropods are still feeding on it.

  • >50 days ⇒ Bones

<u>Note</u>: Remember that these are approximations and might vary according to the region and environmental conditions, such as temperature, precipitation, humidity, etcetera.

According to this information, we can say that ants, mites, and beetles frequent the body in warmer climates between <u>3 and 17 days</u>. Option C.

Learn more about forensic entomology at

brainly.com/question/2929449

brainly.com/question/11034714

#SPJ1

3 0
2 years ago
I need help <br>please ASAP ​
steposvetlana [31]

Answer:

The seven gifts of the Holy Spirit are wisdom, understanding, counsel, fortitude, knowledge, piety, and fear of the Lord. While some Christans accept these as a definitive list of specific attributes, others understand them merely as examples of the Holy Spirit's work through the faithful.

Explanation:

thanks

5 0
3 years ago
Read 2 more answers
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